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[ADD] add node exporter for prometheus

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This commit is contained in:
goodrain 2017-11-23 14:33:01 +08:00
parent 0f2b586300
commit d707967535
928 changed files with 220052 additions and 27180 deletions
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12
pkg/node/api/controller/comman.go
View File

@ -19,10 +19,12 @@
package controller
import (
"github.com/Sirupsen/logrus"
"github.com/goodrain/rainbond/cmd/node/option"
"github.com/goodrain/rainbond/pkg/node/core/config"
"github.com/goodrain/rainbond/pkg/node/core/service"
"github.com/goodrain/rainbond/pkg/node/masterserver"
"github.com/prometheus/node_exporter/collector"
)
var datacenterConfig *config.DataCenterConfig
@ -44,6 +46,16 @@ func Init(c *option.Conf, ms *masterserver.MasterServer) {
}
appService = service.CreateAppService(c)
discoverService = service.CreateDiscoverActionManager(c)
// This instance is only used to check collector creation and logging.
nc, err := collector.NewNodeCollector()
if err != nil {
logrus.Fatalf("Couldn't create collector: %s", err)
}
logrus.Infof("Enabled collectors:")
for n := range nc.Collectors {
logrus.Infof(" - %s", n)
}
}
//Exist 退出

42
pkg/node/api/controller/node_controller.go
View File

@ -23,14 +23,23 @@ import (
"fmt"
"net/http"
"strings"
"yiyun/common/log"
"github.com/go-chi/chi"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/prometheus/common/version"
"github.com/prometheus/node_exporter/collector"
"github.com/goodrain/rainbond/pkg/node/api/model"
httputil "github.com/goodrain/rainbond/pkg/util/http"
)
func init() {
prometheus.MustRegister(version.NewCollector("node_exporter"))
}
//NewNode 创建一个节点
func NewNode(w http.ResponseWriter, r *http.Request) {
var node model.APIHostNode
@ -176,6 +185,39 @@ func UpNode(w http.ResponseWriter, r *http.Request) {
httputil.ReturnSuccess(r, w, node)
}
//NodeExporter 节点监控
func NodeExporter(w http.ResponseWriter, r *http.Request) {
// filters := r.URL.Query()["collect[]"]
// log.Debugln("collect query:", filters)
filters := []string{"cpu", "diskstats", "filesystem", "ipvs", "loadavg", "meminfo", "netdev", "netstat", "uname", "mountstats", "nfs"}
nc, err := collector.NewNodeCollector(filters...)
if err != nil {
log.Warnln("Couldn't create", err)
w.WriteHeader(http.StatusBadRequest)
w.Write([]byte(fmt.Sprintf("Couldn't create %s", err)))
return
}
registry := prometheus.NewRegistry()
err = registry.Register(nc)
if err != nil {
log.Errorln("Couldn't register collector:", err)
w.WriteHeader(http.StatusInternalServerError)
w.Write([]byte(fmt.Sprintf("Couldn't register collector: %s", err)))
return
}
gatherers := prometheus.Gatherers{
prometheus.DefaultGatherer,
registry,
}
// Delegate http serving to Prometheus client library, which will call collector.Collect.
h := promhttp.HandlerFor(gatherers,
promhttp.HandlerOpts{
ErrorLog: log.NewErrorLogger(),
ErrorHandling: promhttp.ContinueOnError,
})
h.ServeHTTP(w, r)
}
//临时存在
func outJSON(w http.ResponseWriter, data interface{}) {
outJSONWithCode(w, http.StatusOK, data)

3
pkg/node/api/router/router.go
View File

@ -109,6 +109,7 @@ func Routers(mode string) *chi.Mux {
if mode == "master" {
r.Put("/-/taskreload", controller.ReloadStaticTasks)
}
//节点监控
r.Get("/metrics", controller.NodeExporter)
return r
}

26
vendor/github.com/prometheus/client_golang/.gitignore generated vendored
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@ -1,26 +0,0 @@
# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
*~
*#
.build

201
vendor/github.com/prometheus/client_golang/LICENSE generated vendored Normal file
View File

@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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"License" shall mean the terms and conditions for use, reproduction,
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Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

1
vendor/github.com/prometheus/client_golang/VERSION generated vendored
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@ -1 +0,0 @@
0.8.0

131
vendor/github.com/prometheus/client_golang/api/client.go generated vendored
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@ -1,131 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.7
// Package api provides clients for the HTTP APIs.
package api
import (
"context"
"io/ioutil"
"net"
"net/http"
"net/url"
"path"
"strings"
"time"
)
// DefaultRoundTripper is used if no RoundTripper is set in Config.
var DefaultRoundTripper http.RoundTripper = &http.Transport{
Proxy: http.ProxyFromEnvironment,
Dial: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
TLSHandshakeTimeout: 10 * time.Second,
}
// Config defines configuration parameters for a new client.
type Config struct {
// The address of the Prometheus to connect to.
Address string
// RoundTripper is used by the Client to drive HTTP requests. If not
// provided, DefaultRoundTripper will be used.
RoundTripper http.RoundTripper
}
func (cfg *Config) roundTripper() http.RoundTripper {
if cfg.RoundTripper == nil {
return DefaultRoundTripper
}
return cfg.RoundTripper
}
// Client is the interface for an API client.
type Client interface {
URL(ep string, args map[string]string) *url.URL
Do(context.Context, *http.Request) (*http.Response, []byte, error)
}
// NewClient returns a new Client.
//
// It is safe to use the returned Client from multiple goroutines.
func NewClient(cfg Config) (Client, error) {
u, err := url.Parse(cfg.Address)
if err != nil {
return nil, err
}
u.Path = strings.TrimRight(u.Path, "/")
return &httpClient{
endpoint: u,
client: http.Client{Transport: cfg.roundTripper()},
}, nil
}
type httpClient struct {
endpoint *url.URL
client http.Client
}
func (c *httpClient) URL(ep string, args map[string]string) *url.URL {
p := path.Join(c.endpoint.Path, ep)
for arg, val := range args {
arg = ":" + arg
p = strings.Replace(p, arg, val, -1)
}
u := *c.endpoint
u.Path = p
return &u
}
func (c *httpClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
if ctx != nil {
req = req.WithContext(ctx)
}
resp, err := c.client.Do(req)
defer func() {
if resp != nil {
resp.Body.Close()
}
}()
if err != nil {
return nil, nil, err
}
var body []byte
done := make(chan struct{})
go func() {
body, err = ioutil.ReadAll(resp.Body)
close(done)
}()
select {
case <-ctx.Done():
err = resp.Body.Close()
<-done
if err == nil {
err = ctx.Err()
}
case <-done:
}
return resp, body, err
}

115
vendor/github.com/prometheus/client_golang/api/client_test.go generated vendored
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@ -1,115 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.7
package api
import (
"net/http"
"net/url"
"testing"
)
func TestConfig(t *testing.T) {
c := Config{}
if c.roundTripper() != DefaultRoundTripper {
t.Fatalf("expected default roundtripper for nil RoundTripper field")
}
}
func TestClientURL(t *testing.T) {
tests := []struct {
address string
endpoint string
args map[string]string
expected string
}{
{
address: "http://localhost:9090",
endpoint: "/test",
expected: "http://localhost:9090/test",
},
{
address: "http://localhost",
endpoint: "/test",
expected: "http://localhost/test",
},
{
address: "http://localhost:9090",
endpoint: "test",
expected: "http://localhost:9090/test",
},
{
address: "http://localhost:9090/prefix",
endpoint: "/test",
expected: "http://localhost:9090/prefix/test",
},
{
address: "https://localhost:9090/",
endpoint: "/test/",
expected: "https://localhost:9090/test",
},
{
address: "http://localhost:9090",
endpoint: "/test/:param",
args: map[string]string{
"param": "content",
},
expected: "http://localhost:9090/test/content",
},
{
address: "http://localhost:9090",
endpoint: "/test/:param/more/:param",
args: map[string]string{
"param": "content",
},
expected: "http://localhost:9090/test/content/more/content",
},
{
address: "http://localhost:9090",
endpoint: "/test/:param/more/:foo",
args: map[string]string{
"param": "content",
"foo": "bar",
},
expected: "http://localhost:9090/test/content/more/bar",
},
{
address: "http://localhost:9090",
endpoint: "/test/:param",
args: map[string]string{
"nonexistant": "content",
},
expected: "http://localhost:9090/test/:param",
},
}
for _, test := range tests {
ep, err := url.Parse(test.address)
if err != nil {
t.Fatal(err)
}
hclient := &httpClient{
endpoint: ep,
client: http.Client{Transport: DefaultRoundTripper},
}
u := hclient.URL(test.endpoint, test.args)
if u.String() != test.expected {
t.Errorf("unexpected result: got %s, want %s", u, test.expected)
continue
}
}
}

261
vendor/github.com/prometheus/client_golang/api/prometheus/v1/api.go generated vendored
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@ -1,261 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.7
// Package v1 provides bindings to the Prometheus HTTP API v1:
// http://prometheus.io/docs/querying/api/
package v1
import (
"context"
"encoding/json"
"fmt"
"net/http"
"strconv"
"time"
"github.com/prometheus/client_golang/api"
"github.com/prometheus/common/model"
)
const (
statusAPIError = 422
apiPrefix = "/api/v1"
epQuery = apiPrefix + "/query"
epQueryRange = apiPrefix + "/query_range"
epLabelValues = apiPrefix + "/label/:name/values"
epSeries = apiPrefix + "/series"
)
// ErrorType models the different API error types.
type ErrorType string
// Possible values for ErrorType.
const (
ErrBadData ErrorType = "bad_data"
ErrTimeout = "timeout"
ErrCanceled = "canceled"
ErrExec = "execution"
ErrBadResponse = "bad_response"
)
// Error is an error returned by the API.
type Error struct {
Type ErrorType
Msg string
}
func (e *Error) Error() string {
return fmt.Sprintf("%s: %s", e.Type, e.Msg)
}
// Range represents a sliced time range.
type Range struct {
// The boundaries of the time range.
Start, End time.Time
// The maximum time between two slices within the boundaries.
Step time.Duration
}
// API provides bindings for Prometheus's v1 API.
type API interface {
// Query performs a query for the given time.
Query(ctx context.Context, query string, ts time.Time) (model.Value, error)
// QueryRange performs a query for the given range.
QueryRange(ctx context.Context, query string, r Range) (model.Value, error)
// LabelValues performs a query for the values of the given label.
LabelValues(ctx context.Context, label string) (model.LabelValues, error)
}
// queryResult contains result data for a query.
type queryResult struct {
Type model.ValueType `json:"resultType"`
Result interface{} `json:"result"`
// The decoded value.
v model.Value
}
func (qr *queryResult) UnmarshalJSON(b []byte) error {
v := struct {
Type model.ValueType `json:"resultType"`
Result json.RawMessage `json:"result"`
}{}
err := json.Unmarshal(b, &v)
if err != nil {
return err
}
switch v.Type {
case model.ValScalar:
var sv model.Scalar
err = json.Unmarshal(v.Result, &sv)
qr.v = &sv
case model.ValVector:
var vv model.Vector
err = json.Unmarshal(v.Result, &vv)
qr.v = vv
case model.ValMatrix:
var mv model.Matrix
err = json.Unmarshal(v.Result, &mv)
qr.v = mv
default:
err = fmt.Errorf("unexpected value type %q", v.Type)
}
return err
}
// NewAPI returns a new API for the client.
//
// It is safe to use the returned API from multiple goroutines.
func NewAPI(c api.Client) API {
return &httpAPI{client: apiClient{c}}
}
type httpAPI struct {
client api.Client
}
func (h *httpAPI) Query(ctx context.Context, query string, ts time.Time) (model.Value, error) {
u := h.client.URL(epQuery, nil)
q := u.Query()
q.Set("query", query)
q.Set("time", ts.Format(time.RFC3339Nano))
u.RawQuery = q.Encode()
req, err := http.NewRequest("GET", u.String(), nil)
if err != nil {
return nil, err
}
_, body, err := h.client.Do(ctx, req)
if err != nil {
return nil, err
}
var qres queryResult
err = json.Unmarshal(body, &qres)
return model.Value(qres.v), err
}
func (h *httpAPI) QueryRange(ctx context.Context, query string, r Range) (model.Value, error) {
u := h.client.URL(epQueryRange, nil)
q := u.Query()
var (
start = r.Start.Format(time.RFC3339Nano)
end = r.End.Format(time.RFC3339Nano)
step = strconv.FormatFloat(r.Step.Seconds(), 'f', 3, 64)
)
q.Set("query", query)
q.Set("start", start)
q.Set("end", end)
q.Set("step", step)
u.RawQuery = q.Encode()
req, err := http.NewRequest("GET", u.String(), nil)
if err != nil {
return nil, err
}
_, body, err := h.client.Do(ctx, req)
if err != nil {
return nil, err
}
var qres queryResult
err = json.Unmarshal(body, &qres)
return model.Value(qres.v), err
}
func (h *httpAPI) LabelValues(ctx context.Context, label string) (model.LabelValues, error) {
u := h.client.URL(epLabelValues, map[string]string{"name": label})
req, err := http.NewRequest(http.MethodGet, u.String(), nil)
if err != nil {
return nil, err
}
_, body, err := h.client.Do(ctx, req)
if err != nil {
return nil, err
}
var labelValues model.LabelValues
err = json.Unmarshal(body, &labelValues)
return labelValues, err
}
// apiClient wraps a regular client and processes successful API responses.
// Successful also includes responses that errored at the API level.
type apiClient struct {
api.Client
}
type apiResponse struct {
Status string `json:"status"`
Data json.RawMessage `json:"data"`
ErrorType ErrorType `json:"errorType"`
Error string `json:"error"`
}
func (c apiClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
resp, body, err := c.Client.Do(ctx, req)
if err != nil {
return resp, body, err
}
code := resp.StatusCode
if code/100 != 2 && code != statusAPIError {
return resp, body, &Error{
Type: ErrBadResponse,
Msg: fmt.Sprintf("bad response code %d", resp.StatusCode),
}
}
var result apiResponse
if err = json.Unmarshal(body, &result); err != nil {
return resp, body, &Error{
Type: ErrBadResponse,
Msg: err.Error(),
}
}
if (code == statusAPIError) != (result.Status == "error") {
err = &Error{
Type: ErrBadResponse,
Msg: "inconsistent body for response code",
}
}
if code == statusAPIError && result.Status == "error" {
err = &Error{
Type: result.ErrorType,
Msg: result.Error,
}
}
return resp, []byte(result.Data), err
}

381
vendor/github.com/prometheus/client_golang/api/prometheus/v1/api_test.go generated vendored
View File

@ -1,381 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.7
package v1
import (
"context"
"encoding/json"
"fmt"
"net/http"
"net/url"
"reflect"
"strings"
"testing"
"time"
"github.com/prometheus/common/model"
)
type apiTest struct {
do func() (interface{}, error)
inErr error
inRes interface{}
reqPath string
reqParam url.Values
reqMethod string
res interface{}
err error
}
type apiTestClient struct {
*testing.T
curTest apiTest
}
func (c *apiTestClient) URL(ep string, args map[string]string) *url.URL {
path := ep
for k, v := range args {
path = strings.Replace(path, ":"+k, v, -1)
}
u := &url.URL{
Host: "test:9090",
Path: path,
}
return u
}
func (c *apiTestClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
test := c.curTest
if req.URL.Path != test.reqPath {
c.Errorf("unexpected request path: want %s, got %s", test.reqPath, req.URL.Path)
}
if req.Method != test.reqMethod {
c.Errorf("unexpected request method: want %s, got %s", test.reqMethod, req.Method)
}
b, err := json.Marshal(test.inRes)
if err != nil {
c.Fatal(err)
}
resp := &http.Response{}
if test.inErr != nil {
resp.StatusCode = statusAPIError
} else {
resp.StatusCode = http.StatusOK
}
return resp, b, test.inErr
}
func TestAPIs(t *testing.T) {
testTime := time.Now()
client := &apiTestClient{T: t}
queryAPI := &httpAPI{
client: client,
}
doQuery := func(q string, ts time.Time) func() (interface{}, error) {
return func() (interface{}, error) {
return queryAPI.Query(context.Background(), q, ts)
}
}
doQueryRange := func(q string, rng Range) func() (interface{}, error) {
return func() (interface{}, error) {
return queryAPI.QueryRange(context.Background(), q, rng)
}
}
doLabelValues := func(label string) func() (interface{}, error) {
return func() (interface{}, error) {
return queryAPI.LabelValues(context.Background(), label)
}
}
queryTests := []apiTest{
{
do: doQuery("2", testTime),
inRes: &queryResult{
Type: model.ValScalar,
Result: &model.Scalar{
Value: 2,
Timestamp: model.TimeFromUnix(testTime.Unix()),
},
},
reqMethod: "GET",
reqPath: "/api/v1/query",
reqParam: url.Values{
"query": []string{"2"},
"time": []string{testTime.Format(time.RFC3339Nano)},
},
res: &model.Scalar{
Value: 2,
Timestamp: model.TimeFromUnix(testTime.Unix()),
},
},
{
do: doQuery("2", testTime),
inErr: fmt.Errorf("some error"),
reqMethod: "GET",
reqPath: "/api/v1/query",
reqParam: url.Values{
"query": []string{"2"},
"time": []string{testTime.Format(time.RFC3339Nano)},
},
err: fmt.Errorf("some error"),
},
{
do: doQueryRange("2", Range{
Start: testTime.Add(-time.Minute),
End: testTime,
Step: time.Minute,
}),
inErr: fmt.Errorf("some error"),
reqMethod: "GET",
reqPath: "/api/v1/query_range",
reqParam: url.Values{
"query": []string{"2"},
"start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)},
"end": []string{testTime.Format(time.RFC3339Nano)},
"step": []string{time.Minute.String()},
},
err: fmt.Errorf("some error"),
},
{
do: doLabelValues("mylabel"),
inRes: []string{"val1", "val2"},
reqMethod: "GET",
reqPath: "/api/v1/label/mylabel/values",
res: model.LabelValues{"val1", "val2"},
},
{
do: doLabelValues("mylabel"),
inErr: fmt.Errorf("some error"),
reqMethod: "GET",
reqPath: "/api/v1/label/mylabel/values",
err: fmt.Errorf("some error"),
},
}
var tests []apiTest
tests = append(tests, queryTests...)
for _, test := range tests {
client.curTest = test
res, err := test.do()
if test.err != nil {
if err == nil {
t.Errorf("expected error %q but got none", test.err)
continue
}
if err.Error() != test.err.Error() {
t.Errorf("unexpected error: want %s, got %s", test.err, err)
}
continue
}
if err != nil {
t.Errorf("unexpected error: %s", err)
continue
}
if !reflect.DeepEqual(res, test.res) {
t.Errorf("unexpected result: want %v, got %v", test.res, res)
}
}
}
type testClient struct {
*testing.T
ch chan apiClientTest
req *http.Request
}
type apiClientTest struct {
code int
response interface{}
expected string
err *Error
}
func (c *testClient) URL(ep string, args map[string]string) *url.URL {
return nil
}
func (c *testClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
if ctx == nil {
c.Fatalf("context was not passed down")
}
if req != c.req {
c.Fatalf("request was not passed down")
}
test := <-c.ch
var b []byte
var err error
switch v := test.response.(type) {
case string:
b = []byte(v)
default:
b, err = json.Marshal(v)
if err != nil {
c.Fatal(err)
}
}
resp := &http.Response{
StatusCode: test.code,
}
return resp, b, nil
}
func TestAPIClientDo(t *testing.T) {
tests := []apiClientTest{
{
response: &apiResponse{
Status: "error",
Data: json.RawMessage(`null`),
ErrorType: ErrBadData,
Error: "failed",
},
err: &Error{
Type: ErrBadData,
Msg: "failed",
},
code: statusAPIError,
expected: `null`,
},
{
response: &apiResponse{
Status: "error",
Data: json.RawMessage(`"test"`),
ErrorType: ErrTimeout,
Error: "timed out",
},
err: &Error{
Type: ErrTimeout,
Msg: "timed out",
},
code: statusAPIError,
expected: `test`,
},
{
response: "bad json",
err: &Error{
Type: ErrBadResponse,
Msg: "bad response code 400",
},
code: http.StatusBadRequest,
},
{
response: "bad json",
err: &Error{
Type: ErrBadResponse,
Msg: "invalid character 'b' looking for beginning of value",
},
code: statusAPIError,
},
{
response: &apiResponse{
Status: "success",
Data: json.RawMessage(`"test"`),
},
err: &Error{
Type: ErrBadResponse,
Msg: "inconsistent body for response code",
},
code: statusAPIError,
},
{
response: &apiResponse{
Status: "success",
Data: json.RawMessage(`"test"`),
ErrorType: ErrTimeout,
Error: "timed out",
},
err: &Error{
Type: ErrBadResponse,
Msg: "inconsistent body for response code",
},
code: statusAPIError,
},
{
response: &apiResponse{
Status: "error",
Data: json.RawMessage(`"test"`),
ErrorType: ErrTimeout,
Error: "timed out",
},
err: &Error{
Type: ErrBadResponse,
Msg: "inconsistent body for response code",
},
code: http.StatusOK,
},
}
tc := &testClient{
T: t,
ch: make(chan apiClientTest, 1),
req: &http.Request{},
}
client := &apiClient{tc}
for _, test := range tests {
tc.ch <- test
_, body, err := client.Do(context.Background(), tc.req)
if test.err != nil {
if err == nil {
t.Errorf("expected error %q but got none", test.err)
continue
}
if test.err.Error() != err.Error() {
t.Errorf("unexpected error: want %q, got %q", test.err, err)
}
continue
}
if err != nil {
t.Errorf("unexpeceted error %s", err)
continue
}
want, got := test.expected, string(body)
if want != got {
t.Errorf("unexpected body: want %q, got %q", want, got)
}
}
}

106
vendor/github.com/prometheus/client_golang/examples/random/main.go generated vendored
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@ -1,106 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// A simple example exposing fictional RPC latencies with different types of
// random distributions (uniform, normal, and exponential) as Prometheus
// metrics.
package main
import (
"flag"
"log"
"math"
"math/rand"
"net/http"
"time"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
var (
addr = flag.String("listen-address", ":8080", "The address to listen on for HTTP requests.")
uniformDomain = flag.Float64("uniform.domain", 0.0002, "The domain for the uniform distribution.")
normDomain = flag.Float64("normal.domain", 0.0002, "The domain for the normal distribution.")
normMean = flag.Float64("normal.mean", 0.00001, "The mean for the normal distribution.")
oscillationPeriod = flag.Duration("oscillation-period", 10*time.Minute, "The duration of the rate oscillation period.")
)
var (
// Create a summary to track fictional interservice RPC latencies for three
// distinct services with different latency distributions. These services are
// differentiated via a "service" label.
rpcDurations = prometheus.NewSummaryVec(
prometheus.SummaryOpts{
Name: "rpc_durations_seconds",
Help: "RPC latency distributions.",
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
},
[]string{"service"},
)
// The same as above, but now as a histogram, and only for the normal
// distribution. The buckets are targeted to the parameters of the
// normal distribution, with 20 buckets centered on the mean, each
// half-sigma wide.
rpcDurationsHistogram = prometheus.NewHistogram(prometheus.HistogramOpts{
Name: "rpc_durations_histogram_seconds",
Help: "RPC latency distributions.",
Buckets: prometheus.LinearBuckets(*normMean-5**normDomain, .5**normDomain, 20),
})
)
func init() {
// Register the summary and the histogram with Prometheus's default registry.
prometheus.MustRegister(rpcDurations)
prometheus.MustRegister(rpcDurationsHistogram)
}
func main() {
flag.Parse()
start := time.Now()
oscillationFactor := func() float64 {
return 2 + math.Sin(math.Sin(2*math.Pi*float64(time.Since(start))/float64(*oscillationPeriod)))
}
// Periodically record some sample latencies for the three services.
go func() {
for {
v := rand.Float64() * *uniformDomain
rpcDurations.WithLabelValues("uniform").Observe(v)
time.Sleep(time.Duration(100*oscillationFactor()) * time.Millisecond)
}
}()
go func() {
for {
v := (rand.NormFloat64() * *normDomain) + *normMean
rpcDurations.WithLabelValues("normal").Observe(v)
rpcDurationsHistogram.Observe(v)
time.Sleep(time.Duration(75*oscillationFactor()) * time.Millisecond)
}
}()
go func() {
for {
v := rand.ExpFloat64() / 1e6
rpcDurations.WithLabelValues("exponential").Observe(v)
time.Sleep(time.Duration(50*oscillationFactor()) * time.Millisecond)
}
}()
// Expose the registered metrics via HTTP.
http.Handle("/metrics", promhttp.Handler())
log.Fatal(http.ListenAndServe(*addr, nil))
}

1
vendor/github.com/prometheus/client_golang/prometheus/.gitignore generated vendored
View File

@ -1 +0,0 @@
command-line-arguments.test

1
vendor/github.com/prometheus/client_golang/prometheus/README.md generated vendored Normal file
View File

@ -0,0 +1 @@
See [![go-doc](https://godoc.org/github.com/prometheus/client_golang/prometheus?status.svg)](https://godoc.org/github.com/prometheus/client_golang/prometheus).

185
vendor/github.com/prometheus/client_golang/prometheus/benchmark_test.go generated vendored
View File

@ -1,185 +0,0 @@
// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus
import (
"sync"
"testing"
)
func BenchmarkCounterWithLabelValues(b *testing.B) {
m := NewCounterVec(
CounterOpts{
Name: "benchmark_counter",
Help: "A counter to benchmark it.",
},
[]string{"one", "two", "three"},
)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m.WithLabelValues("eins", "zwei", "drei").Inc()
}
}
func BenchmarkCounterWithLabelValuesConcurrent(b *testing.B) {
m := NewCounterVec(
CounterOpts{
Name: "benchmark_counter",
Help: "A counter to benchmark it.",
},
[]string{"one", "two", "three"},
)
b.ReportAllocs()
b.ResetTimer()
wg := sync.WaitGroup{}
for i := 0; i < 10; i++ {
wg.Add(1)
go func() {
for j := 0; j < b.N/10; j++ {
m.WithLabelValues("eins", "zwei", "drei").Inc()
}
wg.Done()
}()
}
wg.Wait()
}
func BenchmarkCounterWithMappedLabels(b *testing.B) {
m := NewCounterVec(
CounterOpts{
Name: "benchmark_counter",
Help: "A counter to benchmark it.",
},
[]string{"one", "two", "three"},
)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m.With(Labels{"two": "zwei", "one": "eins", "three": "drei"}).Inc()
}
}
func BenchmarkCounterWithPreparedMappedLabels(b *testing.B) {
m := NewCounterVec(
CounterOpts{
Name: "benchmark_counter",
Help: "A counter to benchmark it.",
},
[]string{"one", "two", "three"},
)
b.ReportAllocs()
b.ResetTimer()
labels := Labels{"two": "zwei", "one": "eins", "three": "drei"}
for i := 0; i < b.N; i++ {
m.With(labels).Inc()
}
}
func BenchmarkCounterNoLabels(b *testing.B) {
m := NewCounter(CounterOpts{
Name: "benchmark_counter",
Help: "A counter to benchmark it.",
})
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m.Inc()
}
}
func BenchmarkGaugeWithLabelValues(b *testing.B) {
m := NewGaugeVec(
GaugeOpts{
Name: "benchmark_gauge",
Help: "A gauge to benchmark it.",
},
[]string{"one", "two", "three"},
)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m.WithLabelValues("eins", "zwei", "drei").Set(3.1415)
}
}
func BenchmarkGaugeNoLabels(b *testing.B) {
m := NewGauge(GaugeOpts{
Name: "benchmark_gauge",
Help: "A gauge to benchmark it.",
})
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m.Set(3.1415)
}
}
func BenchmarkSummaryWithLabelValues(b *testing.B) {
m := NewSummaryVec(
SummaryOpts{
Name: "benchmark_summary",
Help: "A summary to benchmark it.",
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
},
[]string{"one", "two", "three"},
)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m.WithLabelValues("eins", "zwei", "drei").Observe(3.1415)
}
}
func BenchmarkSummaryNoLabels(b *testing.B) {
m := NewSummary(SummaryOpts{
Name: "benchmark_summary",
Help: "A summary to benchmark it.",
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
},
)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m.Observe(3.1415)
}
}
func BenchmarkHistogramWithLabelValues(b *testing.B) {
m := NewHistogramVec(
HistogramOpts{
Name: "benchmark_histogram",
Help: "A histogram to benchmark it.",
},
[]string{"one", "two", "three"},
)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m.WithLabelValues("eins", "zwei", "drei").Observe(3.1415)
}
}
func BenchmarkHistogramNoLabels(b *testing.B) {
m := NewHistogram(HistogramOpts{
Name: "benchmark_histogram",
Help: "A histogram to benchmark it.",
},
)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m.Observe(3.1415)
}
}

58
vendor/github.com/prometheus/client_golang/prometheus/counter_test.go generated vendored
View File

@ -1,58 +0,0 @@
// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus
import (
"math"
"testing"
dto "github.com/prometheus/client_model/go"
)
func TestCounterAdd(t *testing.T) {
counter := NewCounter(CounterOpts{
Name: "test",
Help: "test help",
ConstLabels: Labels{"a": "1", "b": "2"},
}).(*counter)
counter.Inc()
if expected, got := 1., math.Float64frombits(counter.valBits); expected != got {
t.Errorf("Expected %f, got %f.", expected, got)
}
counter.Add(42)
if expected, got := 43., math.Float64frombits(counter.valBits); expected != got {
t.Errorf("Expected %f, got %f.", expected, got)
}
if expected, got := "counter cannot decrease in value", decreaseCounter(counter).Error(); expected != got {
t.Errorf("Expected error %q, got %q.", expected, got)
}
m := &dto.Metric{}
counter.Write(m)
if expected, got := `label:<name:"a" value:"1" > label:<name:"b" value:"2" > counter:<value:43 > `, m.String(); expected != got {
t.Errorf("expected %q, got %q", expected, got)
}
}
func decreaseCounter(c *counter) (err error) {
defer func() {
if e := recover(); e != nil {
err = e.(error)
}
}()
c.Add(-1)
return nil
}

25
vendor/github.com/prometheus/client_golang/prometheus/desc.go generated vendored
View File

@ -25,19 +25,6 @@ import (
dto "github.com/prometheus/client_model/go"
)
// reservedLabelPrefix is a prefix which is not legal in user-supplied
// label names.
const reservedLabelPrefix = "__"
// Labels represents a collection of label name -> value mappings. This type is
// commonly used with the With(Labels) and GetMetricWith(Labels) methods of
// metric vector Collectors, e.g.:
// myVec.With(Labels{"code": "404", "method": "GET"}).Add(42)
//
// The other use-case is the specification of constant label pairs in Opts or to
// create a Desc.
type Labels map[string]string
// Desc is the descriptor used by every Prometheus Metric. It is essentially
// the immutable meta-data of a Metric. The normal Metric implementations
// included in this package manage their Desc under the hood. Users only have to
@ -122,6 +109,12 @@ func NewDesc(fqName, help string, variableLabels []string, constLabels Labels) *
for _, labelName := range labelNames {
labelValues = append(labelValues, constLabels[labelName])
}
// Validate the const label values. They can't have a wrong cardinality, so
// use in len(labelValues) as expectedNumberOfValues.
if err := validateLabelValues(labelValues, len(labelValues)); err != nil {
d.err = err
return d
}
// Now add the variable label names, but prefix them with something that
// cannot be in a regular label name. That prevents matching the label
// dimension with a different mix between preset and variable labels.
@ -137,6 +130,7 @@ func NewDesc(fqName, help string, variableLabels []string, constLabels Labels) *
d.err = errors.New("duplicate label names")
return d
}
vh := hashNew()
for _, val := range labelValues {
vh = hashAdd(vh, val)
@ -193,8 +187,3 @@ func (d *Desc) String() string {
d.variableLabels,
)
}
func checkLabelName(l string) bool {
return model.LabelName(l).IsValid() &&
!strings.HasPrefix(l, reservedLabelPrefix)
}

118
vendor/github.com/prometheus/client_golang/prometheus/example_clustermanager_test.go generated vendored
View File

@ -1,118 +0,0 @@
// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus_test
import "github.com/prometheus/client_golang/prometheus"
// ClusterManager is an example for a system that might have been built without
// Prometheus in mind. It models a central manager of jobs running in a
// cluster. To turn it into something that collects Prometheus metrics, we
// simply add the two methods required for the Collector interface.
//
// An additional challenge is that multiple instances of the ClusterManager are
// run within the same binary, each in charge of a different zone. We need to
// make use of ConstLabels to be able to register each ClusterManager instance
// with Prometheus.
type ClusterManager struct {
Zone string
OOMCountDesc *prometheus.Desc
RAMUsageDesc *prometheus.Desc
// ... many more fields
}
// ReallyExpensiveAssessmentOfTheSystemState is a mock for the data gathering a
// real cluster manager would have to do. Since it may actually be really
// expensive, it must only be called once per collection. This implementation,
// obviously, only returns some made-up data.
func (c *ClusterManager) ReallyExpensiveAssessmentOfTheSystemState() (
oomCountByHost map[string]int, ramUsageByHost map[string]float64,
) {
// Just example fake data.
oomCountByHost = map[string]int{
"foo.example.org": 42,
"bar.example.org": 2001,
}
ramUsageByHost = map[string]float64{
"foo.example.org": 6.023e23,
"bar.example.org": 3.14,
}
return
}
// Describe simply sends the two Descs in the struct to the channel.
func (c *ClusterManager) Describe(ch chan<- *prometheus.Desc) {
ch <- c.OOMCountDesc
ch <- c.RAMUsageDesc
}
// Collect first triggers the ReallyExpensiveAssessmentOfTheSystemState. Then it
// creates constant metrics for each host on the fly based on the returned data.
//
// Note that Collect could be called concurrently, so we depend on
// ReallyExpensiveAssessmentOfTheSystemState to be concurrency-safe.
func (c *ClusterManager) Collect(ch chan<- prometheus.Metric) {
oomCountByHost, ramUsageByHost := c.ReallyExpensiveAssessmentOfTheSystemState()
for host, oomCount := range oomCountByHost {
ch <- prometheus.MustNewConstMetric(
c.OOMCountDesc,
prometheus.CounterValue,
float64(oomCount),
host,
)
}
for host, ramUsage := range ramUsageByHost {
ch <- prometheus.MustNewConstMetric(
c.RAMUsageDesc,
prometheus.GaugeValue,
ramUsage,
host,
)
}
}
// NewClusterManager creates the two Descs OOMCountDesc and RAMUsageDesc. Note
// that the zone is set as a ConstLabel. (It's different in each instance of the
// ClusterManager, but constant over the lifetime of an instance.) Then there is
// a variable label "host", since we want to partition the collected metrics by
// host. Since all Descs created in this way are consistent across instances,
// with a guaranteed distinction by the "zone" label, we can register different
// ClusterManager instances with the same registry.
func NewClusterManager(zone string) *ClusterManager {
return &ClusterManager{
Zone: zone,
OOMCountDesc: prometheus.NewDesc(
"clustermanager_oom_crashes_total",
"Number of OOM crashes.",
[]string{"host"},
prometheus.Labels{"zone": zone},
),
RAMUsageDesc: prometheus.NewDesc(
"clustermanager_ram_usage_bytes",
"RAM usage as reported to the cluster manager.",
[]string{"host"},
prometheus.Labels{"zone": zone},
),
}
}
func ExampleCollector() {
workerDB := NewClusterManager("db")
workerCA := NewClusterManager("ca")
// Since we are dealing with custom Collector implementations, it might
// be a good idea to try it out with a pedantic registry.
reg := prometheus.NewPedanticRegistry()
reg.MustRegister(workerDB)
reg.MustRegister(workerCA)
}

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// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus_test
import (
"net/http"
"github.com/prometheus/client_golang/prometheus"
)
var (
// apiRequestDuration tracks the duration separate for each HTTP status
// class (1xx, 2xx, ...). This creates a fair amount of time series on
// the Prometheus server. Usually, you would track the duration of
// serving HTTP request without partitioning by outcome. Do something
// like this only if needed. Also note how only status classes are
// tracked, not every single status code. The latter would create an
// even larger amount of time series. Request counters partitioned by
// status code are usually OK as each counter only creates one time
// series. Histograms are way more expensive, so partition with care and
// only where you really need separate latency tracking. Partitioning by
// status class is only an example. In concrete cases, other partitions
// might make more sense.
apiRequestDuration = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "api_request_duration_seconds",
Help: "Histogram for the request duration of the public API, partitioned by status class.",
Buckets: prometheus.ExponentialBuckets(0.1, 1.5, 5),
},
[]string{"status_class"},
)
)
func handler(w http.ResponseWriter, r *http.Request) {
status := http.StatusOK
// The ObserverFunc gets called by the deferred ObserveDuration and
// decides wich Histogram's Observe method is called.
timer := prometheus.NewTimer(prometheus.ObserverFunc(func(v float64) {
switch {
case status >= 500: // Server error.
apiRequestDuration.WithLabelValues("5xx").Observe(v)
case status >= 400: // Client error.
apiRequestDuration.WithLabelValues("4xx").Observe(v)
case status >= 300: // Redirection.
apiRequestDuration.WithLabelValues("3xx").Observe(v)
case status >= 200: // Success.
apiRequestDuration.WithLabelValues("2xx").Observe(v)
default: // Informational.
apiRequestDuration.WithLabelValues("1xx").Observe(v)
}
}))
defer timer.ObserveDuration()
// Handle the request. Set status accordingly.
// ...
}
func ExampleTimer_complex() {
http.HandleFunc("/api", handler)
}

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// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus_test
import (
"os"
"github.com/prometheus/client_golang/prometheus"
)
var (
// If a function is called rarely (i.e. not more often than scrapes
// happen) or ideally only once (like in a batch job), it can make sense
// to use a Gauge for timing the function call. For timing a batch job
// and pushing the result to a Pushgateway, see also the comprehensive
// example in the push package.
funcDuration = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "example_function_duration_seconds",
Help: "Duration of the last call of an example function.",
})
)
func run() error {
// The Set method of the Gauge is used to observe the duration.
timer := prometheus.NewTimer(prometheus.ObserverFunc(funcDuration.Set))
defer timer.ObserveDuration()
// Do something. Return errors as encountered. The use of 'defer' above
// makes sure the function is still timed properly.
return nil
}
func ExampleTimer_gauge() {
if err := run(); err != nil {
os.Exit(1)
}
}

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// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus_test
import (
"math/rand"
"time"
"github.com/prometheus/client_golang/prometheus"
)
var (
requestDuration = prometheus.NewHistogram(prometheus.HistogramOpts{
Name: "example_request_duration_seconds",
Help: "Histogram for the runtime of a simple example function.",
Buckets: prometheus.LinearBuckets(0.01, 0.01, 10),
})
)
func ExampleTimer() {
// timer times this example function. It uses a Histogram, but a Summary
// would also work, as both implement Observer. Check out
// https://prometheus.io/docs/practices/histograms/ for differences.
timer := prometheus.NewTimer(requestDuration)
defer timer.ObserveDuration()
// Do something here that takes time.
time.Sleep(time.Duration(rand.NormFloat64()*10000+50000) * time.Microsecond)
}

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// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus_test
import (
"bytes"
"fmt"
"math"
"net/http"
"runtime"
"sort"
"strings"
dto "github.com/prometheus/client_model/go"
"github.com/prometheus/common/expfmt"
"github.com/golang/protobuf/proto"
"github.com/prometheus/client_golang/prometheus"
)
func ExampleGauge() {
opsQueued := prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: "our_company",
Subsystem: "blob_storage",
Name: "ops_queued",
Help: "Number of blob storage operations waiting to be processed.",
})
prometheus.MustRegister(opsQueued)
// 10 operations queued by the goroutine managing incoming requests.
opsQueued.Add(10)
// A worker goroutine has picked up a waiting operation.
opsQueued.Dec()
// And once more...
opsQueued.Dec()
}
func ExampleGaugeVec() {
opsQueued := prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: "our_company",
Subsystem: "blob_storage",
Name: "ops_queued",
Help: "Number of blob storage operations waiting to be processed, partitioned by user and type.",
},
[]string{
// Which user has requested the operation?
"user",
// Of what type is the operation?
"type",
},
)
prometheus.MustRegister(opsQueued)
// Increase a value using compact (but order-sensitive!) WithLabelValues().
opsQueued.WithLabelValues("bob", "put").Add(4)
// Increase a value with a map using WithLabels. More verbose, but order
// doesn't matter anymore.
opsQueued.With(prometheus.Labels{"type": "delete", "user": "alice"}).Inc()
}
func ExampleGaugeFunc() {
if err := prometheus.Register(prometheus.NewGaugeFunc(
prometheus.GaugeOpts{
Subsystem: "runtime",
Name: "goroutines_count",
Help: "Number of goroutines that currently exist.",
},
func() float64 { return float64(runtime.NumGoroutine()) },
)); err == nil {
fmt.Println("GaugeFunc 'goroutines_count' registered.")
}
// Note that the count of goroutines is a gauge (and not a counter) as
// it can go up and down.
// Output:
// GaugeFunc 'goroutines_count' registered.
}
func ExampleCounter() {
pushCounter := prometheus.NewCounter(prometheus.CounterOpts{
Name: "repository_pushes", // Note: No help string...
})
err := prometheus.Register(pushCounter) // ... so this will return an error.
if err != nil {
fmt.Println("Push counter couldn't be registered, no counting will happen:", err)
return
}
// Try it once more, this time with a help string.
pushCounter = prometheus.NewCounter(prometheus.CounterOpts{
Name: "repository_pushes",
Help: "Number of pushes to external repository.",
})
err = prometheus.Register(pushCounter)
if err != nil {
fmt.Println("Push counter couldn't be registered AGAIN, no counting will happen:", err)
return
}
pushComplete := make(chan struct{})
// TODO: Start a goroutine that performs repository pushes and reports
// each completion via the channel.
for range pushComplete {
pushCounter.Inc()
}
// Output:
// Push counter couldn't be registered, no counting will happen: descriptor Desc{fqName: "repository_pushes", help: "", constLabels: {}, variableLabels: []} is invalid: empty help string
}
func ExampleCounterVec() {
httpReqs := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "http_requests_total",
Help: "How many HTTP requests processed, partitioned by status code and HTTP method.",
},
[]string{"code", "method"},
)
prometheus.MustRegister(httpReqs)
httpReqs.WithLabelValues("404", "POST").Add(42)
// If you have to access the same set of labels very frequently, it
// might be good to retrieve the metric only once and keep a handle to
// it. But beware of deletion of that metric, see below!
m := httpReqs.WithLabelValues("200", "GET")
for i := 0; i < 1000000; i++ {
m.Inc()
}
// Delete a metric from the vector. If you have previously kept a handle
// to that metric (as above), future updates via that handle will go
// unseen (even if you re-create a metric with the same label set
// later).
httpReqs.DeleteLabelValues("200", "GET")
// Same thing with the more verbose Labels syntax.
httpReqs.Delete(prometheus.Labels{"method": "GET", "code": "200"})
}
func ExampleInstrumentHandler() {
// Handle the "/doc" endpoint with the standard http.FileServer handler.
// By wrapping the handler with InstrumentHandler, request count,
// request and response sizes, and request latency are automatically
// exported to Prometheus, partitioned by HTTP status code and method
// and by the handler name (here "fileserver").
http.Handle("/doc", prometheus.InstrumentHandler(
"fileserver", http.FileServer(http.Dir("/usr/share/doc")),
))
// The Prometheus handler still has to be registered to handle the
// "/metrics" endpoint. The handler returned by prometheus.Handler() is
// already instrumented - with "prometheus" as the handler name. In this
// example, we want the handler name to be "metrics", so we instrument
// the uninstrumented Prometheus handler ourselves.
http.Handle("/metrics", prometheus.InstrumentHandler(
"metrics", prometheus.UninstrumentedHandler(),
))
}
func ExampleLabelPairSorter() {
labelPairs := []*dto.LabelPair{
{Name: proto.String("status"), Value: proto.String("404")},
{Name: proto.String("method"), Value: proto.String("get")},
}
sort.Sort(prometheus.LabelPairSorter(labelPairs))
fmt.Println(labelPairs)
// Output:
// [name:"method" value:"get" name:"status" value:"404" ]
}
func ExampleRegister() {
// Imagine you have a worker pool and want to count the tasks completed.
taskCounter := prometheus.NewCounter(prometheus.CounterOpts{
Subsystem: "worker_pool",
Name: "completed_tasks_total",
Help: "Total number of tasks completed.",
})
// This will register fine.
if err := prometheus.Register(taskCounter); err != nil {
fmt.Println(err)
} else {
fmt.Println("taskCounter registered.")
}
// Don't forget to tell the HTTP server about the Prometheus handler.
// (In a real program, you still need to start the HTTP server...)
http.Handle("/metrics", prometheus.Handler())
// Now you can start workers and give every one of them a pointer to
// taskCounter and let it increment it whenever it completes a task.
taskCounter.Inc() // This has to happen somewhere in the worker code.
// But wait, you want to see how individual workers perform. So you need
// a vector of counters, with one element for each worker.
taskCounterVec := prometheus.NewCounterVec(
prometheus.CounterOpts{
Subsystem: "worker_pool",
Name: "completed_tasks_total",
Help: "Total number of tasks completed.",
},
[]string{"worker_id"},
)
// Registering will fail because we already have a metric of that name.
if err := prometheus.Register(taskCounterVec); err != nil {
fmt.Println("taskCounterVec not registered:", err)
} else {
fmt.Println("taskCounterVec registered.")
}
// To fix, first unregister the old taskCounter.
if prometheus.Unregister(taskCounter) {
fmt.Println("taskCounter unregistered.")
}
// Try registering taskCounterVec again.
if err := prometheus.Register(taskCounterVec); err != nil {
fmt.Println("taskCounterVec not registered:", err)
} else {
fmt.Println("taskCounterVec registered.")
}
// Bummer! Still doesn't work.
// Prometheus will not allow you to ever export metrics with
// inconsistent help strings or label names. After unregistering, the
// unregistered metrics will cease to show up in the /metrics HTTP
// response, but the registry still remembers that those metrics had
// been exported before. For this example, we will now choose a
// different name. (In a real program, you would obviously not export
// the obsolete metric in the first place.)
taskCounterVec = prometheus.NewCounterVec(
prometheus.CounterOpts{
Subsystem: "worker_pool",
Name: "completed_tasks_by_id",
Help: "Total number of tasks completed.",
},
[]string{"worker_id"},
)
if err := prometheus.Register(taskCounterVec); err != nil {
fmt.Println("taskCounterVec not registered:", err)
} else {
fmt.Println("taskCounterVec registered.")
}
// Finally it worked!
// The workers have to tell taskCounterVec their id to increment the
// right element in the metric vector.
taskCounterVec.WithLabelValues("42").Inc() // Code from worker 42.
// Each worker could also keep a reference to their own counter element
// around. Pick the counter at initialization time of the worker.
myCounter := taskCounterVec.WithLabelValues("42") // From worker 42 initialization code.
myCounter.Inc() // Somewhere in the code of that worker.
// Note that something like WithLabelValues("42", "spurious arg") would
// panic (because you have provided too many label values). If you want
// to get an error instead, use GetMetricWithLabelValues(...) instead.
notMyCounter, err := taskCounterVec.GetMetricWithLabelValues("42", "spurious arg")
if err != nil {
fmt.Println("Worker initialization failed:", err)
}
if notMyCounter == nil {
fmt.Println("notMyCounter is nil.")
}
// A different (and somewhat tricky) approach is to use
// ConstLabels. ConstLabels are pairs of label names and label values
// that never change. You might ask what those labels are good for (and
// rightfully so - if they never change, they could as well be part of
// the metric name). There are essentially two use-cases: The first is
// if labels are constant throughout the lifetime of a binary execution,
// but they vary over time or between different instances of a running
// binary. The second is what we have here: Each worker creates and
// registers an own Counter instance where the only difference is in the
// value of the ConstLabels. Those Counters can all be registered
// because the different ConstLabel values guarantee that each worker
// will increment a different Counter metric.
counterOpts := prometheus.CounterOpts{
Subsystem: "worker_pool",
Name: "completed_tasks",
Help: "Total number of tasks completed.",
ConstLabels: prometheus.Labels{"worker_id": "42"},
}
taskCounterForWorker42 := prometheus.NewCounter(counterOpts)
if err := prometheus.Register(taskCounterForWorker42); err != nil {
fmt.Println("taskCounterVForWorker42 not registered:", err)
} else {
fmt.Println("taskCounterForWorker42 registered.")
}
// Obviously, in real code, taskCounterForWorker42 would be a member
// variable of a worker struct, and the "42" would be retrieved with a
// GetId() method or something. The Counter would be created and
// registered in the initialization code of the worker.
// For the creation of the next Counter, we can recycle
// counterOpts. Just change the ConstLabels.
counterOpts.ConstLabels = prometheus.Labels{"worker_id": "2001"}
taskCounterForWorker2001 := prometheus.NewCounter(counterOpts)
if err := prometheus.Register(taskCounterForWorker2001); err != nil {
fmt.Println("taskCounterVForWorker2001 not registered:", err)
} else {
fmt.Println("taskCounterForWorker2001 registered.")
}
taskCounterForWorker2001.Inc()
taskCounterForWorker42.Inc()
taskCounterForWorker2001.Inc()
// Yet another approach would be to turn the workers themselves into
// Collectors and register them. See the Collector example for details.
// Output:
// taskCounter registered.
// taskCounterVec not registered: a previously registered descriptor with the same fully-qualified name as Desc{fqName: "worker_pool_completed_tasks_total", help: "Total number of tasks completed.", constLabels: {}, variableLabels: [worker_id]} has different label names or a different help string
// taskCounter unregistered.
// taskCounterVec not registered: a previously registered descriptor with the same fully-qualified name as Desc{fqName: "worker_pool_completed_tasks_total", help: "Total number of tasks completed.", constLabels: {}, variableLabels: [worker_id]} has different label names or a different help string
// taskCounterVec registered.
// Worker initialization failed: inconsistent label cardinality
// notMyCounter is nil.
// taskCounterForWorker42 registered.
// taskCounterForWorker2001 registered.
}
func ExampleSummary() {
temps := prometheus.NewSummary(prometheus.SummaryOpts{
Name: "pond_temperature_celsius",
Help: "The temperature of the frog pond.",
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
})
// Simulate some observations.
for i := 0; i < 1000; i++ {
temps.Observe(30 + math.Floor(120*math.Sin(float64(i)*0.1))/10)
}
// Just for demonstration, let's check the state of the summary by
// (ab)using its Write method (which is usually only used by Prometheus
// internally).
metric := &dto.Metric{}
temps.Write(metric)
fmt.Println(proto.MarshalTextString(metric))
// Output:
// summary: <
// sample_count: 1000
// sample_sum: 29969.50000000001
// quantile: <
// quantile: 0.5
// value: 31.1
// >
// quantile: <
// quantile: 0.9
// value: 41.3
// >
// quantile: <
// quantile: 0.99
// value: 41.9
// >
// >
}
func ExampleSummaryVec() {
temps := prometheus.NewSummaryVec(
prometheus.SummaryOpts{
Name: "pond_temperature_celsius",
Help: "The temperature of the frog pond.",
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
},
[]string{"species"},
)
// Simulate some observations.
for i := 0; i < 1000; i++ {
temps.WithLabelValues("litoria-caerulea").Observe(30 + math.Floor(120*math.Sin(float64(i)*0.1))/10)
temps.WithLabelValues("lithobates-catesbeianus").Observe(32 + math.Floor(100*math.Cos(float64(i)*0.11))/10)
}
// Create a Summary without any observations.
temps.WithLabelValues("leiopelma-hochstetteri")
// Just for demonstration, let's check the state of the summary vector
// by registering it with a custom registry and then let it collect the
// metrics.
reg := prometheus.NewRegistry()
reg.MustRegister(temps)
metricFamilies, err := reg.Gather()
if err != nil || len(metricFamilies) != 1 {
panic("unexpected behavior of custom test registry")
}
fmt.Println(proto.MarshalTextString(metricFamilies[0]))
// Output:
// name: "pond_temperature_celsius"
// help: "The temperature of the frog pond."
// type: SUMMARY
// metric: <
// label: <
// name: "species"
// value: "leiopelma-hochstetteri"
// >
// summary: <
// sample_count: 0
// sample_sum: 0
// quantile: <
// quantile: 0.5
// value: nan
// >
// quantile: <
// quantile: 0.9
// value: nan
// >
// quantile: <
// quantile: 0.99
// value: nan
// >
// >
// >
// metric: <
// label: <
// name: "species"
// value: "lithobates-catesbeianus"
// >
// summary: <
// sample_count: 1000
// sample_sum: 31956.100000000017
// quantile: <
// quantile: 0.5
// value: 32.4
// >
// quantile: <
// quantile: 0.9
// value: 41.4
// >
// quantile: <
// quantile: 0.99
// value: 41.9
// >
// >
// >
// metric: <
// label: <
// name: "species"
// value: "litoria-caerulea"
// >
// summary: <
// sample_count: 1000
// sample_sum: 29969.50000000001
// quantile: <
// quantile: 0.5
// value: 31.1
// >
// quantile: <
// quantile: 0.9
// value: 41.3
// >
// quantile: <
// quantile: 0.99
// value: 41.9
// >
// >
// >
}
func ExampleNewConstSummary() {
desc := prometheus.NewDesc(
"http_request_duration_seconds",
"A summary of the HTTP request durations.",
[]string{"code", "method"},
prometheus.Labels{"owner": "example"},
)
// Create a constant summary from values we got from a 3rd party telemetry system.
s := prometheus.MustNewConstSummary(
desc,
4711, 403.34,
map[float64]float64{0.5: 42.3, 0.9: 323.3},
"200", "get",
)
// Just for demonstration, let's check the state of the summary by
// (ab)using its Write method (which is usually only used by Prometheus
// internally).
metric := &dto.Metric{}
s.Write(metric)
fmt.Println(proto.MarshalTextString(metric))
// Output:
// label: <
// name: "code"
// value: "200"
// >
// label: <
// name: "method"
// value: "get"
// >
// label: <
// name: "owner"
// value: "example"
// >
// summary: <
// sample_count: 4711
// sample_sum: 403.34
// quantile: <
// quantile: 0.5
// value: 42.3
// >
// quantile: <
// quantile: 0.9
// value: 323.3
// >
// >
}
func ExampleHistogram() {
temps := prometheus.NewHistogram(prometheus.HistogramOpts{
Name: "pond_temperature_celsius",
Help: "The temperature of the frog pond.", // Sorry, we can't measure how badly it smells.
Buckets: prometheus.LinearBuckets(20, 5, 5), // 5 buckets, each 5 centigrade wide.
})
// Simulate some observations.
for i := 0; i < 1000; i++ {
temps.Observe(30 + math.Floor(120*math.Sin(float64(i)*0.1))/10)
}
// Just for demonstration, let's check the state of the histogram by
// (ab)using its Write method (which is usually only used by Prometheus
// internally).
metric := &dto.Metric{}
temps.Write(metric)
fmt.Println(proto.MarshalTextString(metric))
// Output:
// histogram: <
// sample_count: 1000
// sample_sum: 29969.50000000001
// bucket: <
// cumulative_count: 192
// upper_bound: 20
// >
// bucket: <
// cumulative_count: 366
// upper_bound: 25
// >
// bucket: <
// cumulative_count: 501
// upper_bound: 30
// >
// bucket: <
// cumulative_count: 638
// upper_bound: 35
// >
// bucket: <
// cumulative_count: 816
// upper_bound: 40
// >
// >
}
func ExampleNewConstHistogram() {
desc := prometheus.NewDesc(
"http_request_duration_seconds",
"A histogram of the HTTP request durations.",
[]string{"code", "method"},
prometheus.Labels{"owner": "example"},
)
// Create a constant histogram from values we got from a 3rd party telemetry system.
h := prometheus.MustNewConstHistogram(
desc,
4711, 403.34,
map[float64]uint64{25: 121, 50: 2403, 100: 3221, 200: 4233},
"200", "get",
)
// Just for demonstration, let's check the state of the histogram by
// (ab)using its Write method (which is usually only used by Prometheus
// internally).
metric := &dto.Metric{}
h.Write(metric)
fmt.Println(proto.MarshalTextString(metric))
// Output:
// label: <
// name: "code"
// value: "200"
// >
// label: <
// name: "method"
// value: "get"
// >
// label: <
// name: "owner"
// value: "example"
// >
// histogram: <
// sample_count: 4711
// sample_sum: 403.34
// bucket: <
// cumulative_count: 121
// upper_bound: 25
// >
// bucket: <
// cumulative_count: 2403
// upper_bound: 50
// >
// bucket: <
// cumulative_count: 3221
// upper_bound: 100
// >
// bucket: <
// cumulative_count: 4233
// upper_bound: 200
// >
// >
}
func ExampleAlreadyRegisteredError() {
reqCounter := prometheus.NewCounter(prometheus.CounterOpts{
Name: "requests_total",
Help: "The total number of requests served.",
})
if err := prometheus.Register(reqCounter); err != nil {
if are, ok := err.(prometheus.AlreadyRegisteredError); ok {
// A counter for that metric has been registered before.
// Use the old counter from now on.
reqCounter = are.ExistingCollector.(prometheus.Counter)
} else {
// Something else went wrong!
panic(err)
}
}
reqCounter.Inc()
}
func ExampleGatherers() {
reg := prometheus.NewRegistry()
temp := prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Name: "temperature_kelvin",
Help: "Temperature in Kelvin.",
},
[]string{"location"},
)
reg.MustRegister(temp)
temp.WithLabelValues("outside").Set(273.14)
temp.WithLabelValues("inside").Set(298.44)
var parser expfmt.TextParser
text := `
# TYPE humidity_percent gauge
# HELP humidity_percent Humidity in %.
humidity_percent{location="outside"} 45.4
humidity_percent{location="inside"} 33.2
# TYPE temperature_kelvin gauge
# HELP temperature_kelvin Temperature in Kelvin.
temperature_kelvin{location="somewhere else"} 4.5
`
parseText := func() ([]*dto.MetricFamily, error) {
parsed, err := parser.TextToMetricFamilies(strings.NewReader(text))
if err != nil {
return nil, err
}
var result []*dto.MetricFamily
for _, mf := range parsed {
result = append(result, mf)
}
return result, nil
}
gatherers := prometheus.Gatherers{
reg,
prometheus.GathererFunc(parseText),
}
gathering, err := gatherers.Gather()
if err != nil {
fmt.Println(err)
}
out := &bytes.Buffer{}
for _, mf := range gathering {
if _, err := expfmt.MetricFamilyToText(out, mf); err != nil {
panic(err)
}
}
fmt.Print(out.String())
fmt.Println("----------")
// Note how the temperature_kelvin metric family has been merged from
// different sources. Now try
text = `
# TYPE humidity_percent gauge
# HELP humidity_percent Humidity in %.
humidity_percent{location="outside"} 45.4
humidity_percent{location="inside"} 33.2
# TYPE temperature_kelvin gauge
# HELP temperature_kelvin Temperature in Kelvin.
# Duplicate metric:
temperature_kelvin{location="outside"} 265.3
# Wrong labels:
temperature_kelvin 4.5
`
gathering, err = gatherers.Gather()
if err != nil {
fmt.Println(err)
}
// Note that still as many metrics as possible are returned:
out.Reset()
for _, mf := range gathering {
if _, err := expfmt.MetricFamilyToText(out, mf); err != nil {
panic(err)
}
}
fmt.Print(out.String())
// Output:
// # HELP humidity_percent Humidity in %.
// # TYPE humidity_percent gauge
// humidity_percent{location="inside"} 33.2
// humidity_percent{location="outside"} 45.4
// # HELP temperature_kelvin Temperature in Kelvin.
// # TYPE temperature_kelvin gauge
// temperature_kelvin{location="inside"} 298.44
// temperature_kelvin{location="outside"} 273.14
// temperature_kelvin{location="somewhere else"} 4.5
// ----------
// 2 error(s) occurred:
// * collected metric temperature_kelvin label:<name:"location" value:"outside" > gauge:<value:265.3 > was collected before with the same name and label values
// * collected metric temperature_kelvin gauge:<value:4.5 > has label dimensions inconsistent with previously collected metrics in the same metric family
// # HELP humidity_percent Humidity in %.
// # TYPE humidity_percent gauge
// humidity_percent{location="inside"} 33.2
// humidity_percent{location="outside"} 45.4
// # HELP temperature_kelvin Temperature in Kelvin.
// # TYPE temperature_kelvin gauge
// temperature_kelvin{location="inside"} 298.44
// temperature_kelvin{location="outside"} 273.14
}

97
vendor/github.com/prometheus/client_golang/prometheus/expvar_collector_test.go generated vendored
View File

@ -1,97 +0,0 @@
// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus_test
import (
"expvar"
"fmt"
"sort"
"strings"
dto "github.com/prometheus/client_model/go"
"github.com/prometheus/client_golang/prometheus"
)
func ExampleNewExpvarCollector() {
expvarCollector := prometheus.NewExpvarCollector(map[string]*prometheus.Desc{
"memstats": prometheus.NewDesc(
"expvar_memstats",
"All numeric memstats as one metric family. Not a good role-model, actually... ;-)",
[]string{"type"}, nil,
),
"lone-int": prometheus.NewDesc(
"expvar_lone_int",
"Just an expvar int as an example.",
nil, nil,
),
"http-request-map": prometheus.NewDesc(
"expvar_http_request_total",
"How many http requests processed, partitioned by status code and http method.",
[]string{"code", "method"}, nil,
),
})
prometheus.MustRegister(expvarCollector)
// The Prometheus part is done here. But to show that this example is
// doing anything, we have to manually export something via expvar. In
// real-life use-cases, some library would already have exported via
// expvar what we want to re-export as Prometheus metrics.
expvar.NewInt("lone-int").Set(42)
expvarMap := expvar.NewMap("http-request-map")
var (
expvarMap1, expvarMap2 expvar.Map
expvarInt11, expvarInt12, expvarInt21, expvarInt22 expvar.Int
)
expvarMap1.Init()
expvarMap2.Init()
expvarInt11.Set(3)
expvarInt12.Set(13)
expvarInt21.Set(11)
expvarInt22.Set(212)
expvarMap1.Set("POST", &expvarInt11)
expvarMap1.Set("GET", &expvarInt12)
expvarMap2.Set("POST", &expvarInt21)
expvarMap2.Set("GET", &expvarInt22)
expvarMap.Set("404", &expvarMap1)
expvarMap.Set("200", &expvarMap2)
// Results in the following expvar map:
// "http-request-count": {"200": {"POST": 11, "GET": 212}, "404": {"POST": 3, "GET": 13}}
// Let's see what the scrape would yield, but exclude the memstats metrics.
metricStrings := []string{}
metric := dto.Metric{}
metricChan := make(chan prometheus.Metric)
go func() {
expvarCollector.Collect(metricChan)
close(metricChan)
}()
for m := range metricChan {
if strings.Index(m.Desc().String(), "expvar_memstats") == -1 {
metric.Reset()
m.Write(&metric)
metricStrings = append(metricStrings, metric.String())
}
}
sort.Strings(metricStrings)
for _, s := range metricStrings {
fmt.Println(strings.TrimRight(s, " "))
}
// Output:
// label:<name:"code" value:"200" > label:<name:"method" value:"GET" > untyped:<value:212 >
// label:<name:"code" value:"200" > label:<name:"method" value:"POST" > untyped:<value:11 >
// label:<name:"code" value:"404" > label:<name:"method" value:"GET" > untyped:<value:13 >
// label:<name:"code" value:"404" > label:<name:"method" value:"POST" > untyped:<value:3 >
// untyped:<value:42 >
}

202
vendor/github.com/prometheus/client_golang/prometheus/gauge_test.go generated vendored
View File

@ -1,202 +0,0 @@
// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus
import (
"math"
"math/rand"
"sync"
"testing"
"testing/quick"
"time"
dto "github.com/prometheus/client_model/go"
)
func listenGaugeStream(vals, result chan float64, done chan struct{}) {
var sum float64
outer:
for {
select {
case <-done:
close(vals)
for v := range vals {
sum += v
}
break outer
case v := <-vals:
sum += v
}
}
result <- sum
close(result)
}
func TestGaugeConcurrency(t *testing.T) {
it := func(n uint32) bool {
mutations := int(n % 10000)
concLevel := int(n%15 + 1)
var start, end sync.WaitGroup
start.Add(1)
end.Add(concLevel)
sStream := make(chan float64, mutations*concLevel)
result := make(chan float64)
done := make(chan struct{})
go listenGaugeStream(sStream, result, done)
go func() {
end.Wait()
close(done)
}()
gge := NewGauge(GaugeOpts{
Name: "test_gauge",
Help: "no help can be found here",
})
for i := 0; i < concLevel; i++ {
vals := make([]float64, mutations)
for j := 0; j < mutations; j++ {
vals[j] = rand.Float64() - 0.5
}
go func(vals []float64) {
start.Wait()
for _, v := range vals {
sStream <- v
gge.Add(v)
}
end.Done()
}(vals)
}
start.Done()
if expected, got := <-result, math.Float64frombits(gge.(*value).valBits); math.Abs(expected-got) > 0.000001 {
t.Fatalf("expected approx. %f, got %f", expected, got)
return false
}
return true
}
if err := quick.Check(it, nil); err != nil {
t.Fatal(err)
}
}
func TestGaugeVecConcurrency(t *testing.T) {
it := func(n uint32) bool {
mutations := int(n % 10000)
concLevel := int(n%15 + 1)
vecLength := int(n%5 + 1)
var start, end sync.WaitGroup
start.Add(1)
end.Add(concLevel)
sStreams := make([]chan float64, vecLength)
results := make([]chan float64, vecLength)
done := make(chan struct{})
for i := 0; i < vecLength; i++ {
sStreams[i] = make(chan float64, mutations*concLevel)
results[i] = make(chan float64)
go listenGaugeStream(sStreams[i], results[i], done)
}
go func() {
end.Wait()
close(done)
}()
gge := NewGaugeVec(
GaugeOpts{
Name: "test_gauge",
Help: "no help can be found here",
},
[]string{"label"},
)
for i := 0; i < concLevel; i++ {
vals := make([]float64, mutations)
pick := make([]int, mutations)
for j := 0; j < mutations; j++ {
vals[j] = rand.Float64() - 0.5
pick[j] = rand.Intn(vecLength)
}
go func(vals []float64) {
start.Wait()
for i, v := range vals {
sStreams[pick[i]] <- v
gge.WithLabelValues(string('A' + pick[i])).Add(v)
}
end.Done()
}(vals)
}
start.Done()
for i := range sStreams {
if expected, got := <-results[i], math.Float64frombits(gge.WithLabelValues(string('A'+i)).(*value).valBits); math.Abs(expected-got) > 0.000001 {
t.Fatalf("expected approx. %f, got %f", expected, got)
return false
}
}
return true
}
if err := quick.Check(it, nil); err != nil {
t.Fatal(err)
}
}
func TestGaugeFunc(t *testing.T) {
gf := NewGaugeFunc(
GaugeOpts{
Name: "test_name",
Help: "test help",
ConstLabels: Labels{"a": "1", "b": "2"},
},
func() float64 { return 3.1415 },
)
if expected, got := `Desc{fqName: "test_name", help: "test help", constLabels: {a="1",b="2"}, variableLabels: []}`, gf.Desc().String(); expected != got {
t.Errorf("expected %q, got %q", expected, got)
}
m := &dto.Metric{}
gf.Write(m)
if expected, got := `label:<name:"a" value:"1" > label:<name:"b" value:"2" > gauge:<value:3.1415 > `, m.String(); expected != got {
t.Errorf("expected %q, got %q", expected, got)
}
}
func TestGaugeSetCurrentTime(t *testing.T) {
g := NewGauge(GaugeOpts{
Name: "test_name",
Help: "test help",
})
g.SetToCurrentTime()
unixTime := float64(time.Now().Unix())
m := &dto.Metric{}
g.Write(m)
delta := unixTime - m.GetGauge().GetValue()
// This is just a smoke test to make sure SetToCurrentTime is not
// totally off. Tests with current time involved are hard...
if math.Abs(delta) > 5 {
t.Errorf("Gauge set to current time deviates from current time by more than 5s, delta is %f seconds", delta)
}
}

127
vendor/github.com/prometheus/client_golang/prometheus/go_collector_test.go generated vendored
View File

@ -1,127 +0,0 @@
package prometheus
import (
"runtime"
"testing"
"time"
dto "github.com/prometheus/client_model/go"
)
func TestGoCollector(t *testing.T) {
var (
c = NewGoCollector()
ch = make(chan Metric)
waitc = make(chan struct{})
closec = make(chan struct{})
old = -1
)
defer close(closec)
go func() {
c.Collect(ch)
go func(c <-chan struct{}) {
<-c
}(closec)
<-waitc
c.Collect(ch)
}()
for {
select {
case m := <-ch:
// m can be Gauge or Counter,
// currently just test the go_goroutines Gauge
// and ignore others.
if m.Desc().fqName != "go_goroutines" {
continue
}
pb := &dto.Metric{}
m.Write(pb)
if pb.GetGauge() == nil {
continue
}
if old == -1 {
old = int(pb.GetGauge().GetValue())
close(waitc)
continue
}
if diff := int(pb.GetGauge().GetValue()) - old; diff != 1 {
// TODO: This is flaky in highly concurrent situations.
t.Errorf("want 1 new goroutine, got %d", diff)
}
// GoCollector performs three sends per call.
// On line 27 we need to receive three more sends
// to shut down cleanly.
<-ch
<-ch
<-ch
return
case <-time.After(1 * time.Second):
t.Fatalf("expected collect timed out")
}
}
}
func TestGCCollector(t *testing.T) {
var (
c = NewGoCollector()
ch = make(chan Metric)
waitc = make(chan struct{})
closec = make(chan struct{})
oldGC uint64
oldPause float64
)
defer close(closec)
go func() {
c.Collect(ch)
// force GC
runtime.GC()
<-waitc
c.Collect(ch)
}()
first := true
for {
select {
case metric := <-ch:
switch m := metric.(type) {
case *constSummary, *value:
pb := &dto.Metric{}
m.Write(pb)
if pb.GetSummary() == nil {
continue
}
if len(pb.GetSummary().Quantile) != 5 {
t.Errorf("expected 4 buckets, got %d", len(pb.GetSummary().Quantile))
}
for idx, want := range []float64{0.0, 0.25, 0.5, 0.75, 1.0} {
if *pb.GetSummary().Quantile[idx].Quantile != want {
t.Errorf("bucket #%d is off, got %f, want %f", idx, *pb.GetSummary().Quantile[idx].Quantile, want)
}
}
if first {
first = false
oldGC = *pb.GetSummary().SampleCount
oldPause = *pb.GetSummary().SampleSum
close(waitc)
continue
}
if diff := *pb.GetSummary().SampleCount - oldGC; diff != 1 {
t.Errorf("want 1 new garbage collection run, got %d", diff)
}
if diff := *pb.GetSummary().SampleSum - oldPause; diff <= 0 {
t.Errorf("want moar pause, got %f", diff)
}
return
}
case <-time.After(1 * time.Second):
t.Fatalf("expected collect timed out")
}
}
}

280
vendor/github.com/prometheus/client_golang/prometheus/graphite/bridge.go generated vendored
View File

@ -1,280 +0,0 @@
// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package graphite provides a bridge to push Prometheus metrics to a Graphite
// server.
package graphite
import (
"bufio"
"errors"
"fmt"
"io"
"net"
"sort"
"time"
"github.com/prometheus/common/expfmt"
"github.com/prometheus/common/model"
"golang.org/x/net/context"
dto "github.com/prometheus/client_model/go"
"github.com/prometheus/client_golang/prometheus"
)
const (
defaultInterval = 15 * time.Second
millisecondsPerSecond = 1000
)
// HandlerErrorHandling defines how a Handler serving metrics will handle
// errors.
type HandlerErrorHandling int
// These constants cause handlers serving metrics to behave as described if
// errors are encountered.
const (
// Ignore errors and try to push as many metrics to Graphite as possible.
ContinueOnError HandlerErrorHandling = iota
// Abort the push to Graphite upon the first error encountered.
AbortOnError
)
// Config defines the Graphite bridge config.
type Config struct {
// The url to push data to. Required.
URL string
// The prefix for the pushed Graphite metrics. Defaults to empty string.
Prefix string
// The interval to use for pushing data to Graphite. Defaults to 15 seconds.
Interval time.Duration
// The timeout for pushing metrics to Graphite. Defaults to 15 seconds.
Timeout time.Duration
// The Gatherer to use for metrics. Defaults to prometheus.DefaultGatherer.
Gatherer prometheus.Gatherer
// The logger that messages are written to. Defaults to no logging.
Logger Logger
// ErrorHandling defines how errors are handled. Note that errors are
// logged regardless of the configured ErrorHandling provided Logger
// is not nil.
ErrorHandling HandlerErrorHandling
}
// Bridge pushes metrics to the configured Graphite server.
type Bridge struct {
url string
prefix string
interval time.Duration
timeout time.Duration
errorHandling HandlerErrorHandling
logger Logger
g prometheus.Gatherer
}
// Logger is the minimal interface Bridge needs for logging. Note that
// log.Logger from the standard library implements this interface, and it is
// easy to implement by custom loggers, if they don't do so already anyway.
type Logger interface {
Println(v ...interface{})
}
// NewBridge returns a pointer to a new Bridge struct.
func NewBridge(c *Config) (*Bridge, error) {
b := &Bridge{}
if c.URL == "" {
return nil, errors.New("missing URL")
}
b.url = c.URL
if c.Gatherer == nil {
b.g = prometheus.DefaultGatherer
} else {
b.g = c.Gatherer
}
if c.Logger != nil {
b.logger = c.Logger
}
if c.Prefix != "" {
b.prefix = c.Prefix
}
var z time.Duration
if c.Interval == z {
b.interval = defaultInterval
} else {
b.interval = c.Interval
}
if c.Timeout == z {
b.timeout = defaultInterval
} else {
b.timeout = c.Timeout
}
b.errorHandling = c.ErrorHandling
return b, nil
}
// Run starts the event loop that pushes Prometheus metrics to Graphite at the
// configured interval.
func (b *Bridge) Run(ctx context.Context) {
ticker := time.NewTicker(b.interval)
defer ticker.Stop()
for {
select {
case <-ticker.C:
if err := b.Push(); err != nil && b.logger != nil {
b.logger.Println("error pushing to Graphite:", err)
}
case <-ctx.Done():
return
}
}
}
// Push pushes Prometheus metrics to the configured Graphite server.
func (b *Bridge) Push() error {
mfs, err := b.g.Gather()
if err != nil || len(mfs) == 0 {
switch b.errorHandling {
case AbortOnError:
return err
case ContinueOnError:
if b.logger != nil {
b.logger.Println("continue on error:", err)
}
default:
panic("unrecognized error handling value")
}
}
conn, err := net.DialTimeout("tcp", b.url, b.timeout)
if err != nil {
return err
}
defer conn.Close()
return writeMetrics(conn, mfs, b.prefix, model.Now())
}
func writeMetrics(w io.Writer, mfs []*dto.MetricFamily, prefix string, now model.Time) error {
vec, err := expfmt.ExtractSamples(&expfmt.DecodeOptions{
Timestamp: now,
}, mfs...)
if err != nil {
return err
}
buf := bufio.NewWriter(w)
for _, s := range vec {
if err := writeSanitized(buf, prefix); err != nil {
return err
}
if err := buf.WriteByte('.'); err != nil {
return err
}
if err := writeMetric(buf, s.Metric); err != nil {
return err
}
if _, err := fmt.Fprintf(buf, " %g %d\n", s.Value, int64(s.Timestamp)/millisecondsPerSecond); err != nil {
return err
}
if err := buf.Flush(); err != nil {
return err
}
}
return nil
}
func writeMetric(buf *bufio.Writer, m model.Metric) error {
metricName, hasName := m[model.MetricNameLabel]
numLabels := len(m) - 1
if !hasName {
numLabels = len(m)
}
labelStrings := make([]string, 0, numLabels)
for label, value := range m {
if label != model.MetricNameLabel {
labelStrings = append(labelStrings, fmt.Sprintf("%s %s", string(label), string(value)))
}
}
var err error
switch numLabels {
case 0:
if hasName {
return writeSanitized(buf, string(metricName))
}
default:
sort.Strings(labelStrings)
if err = writeSanitized(buf, string(metricName)); err != nil {
return err
}
for _, s := range labelStrings {
if err = buf.WriteByte('.'); err != nil {
return err
}
if err = writeSanitized(buf, s); err != nil {
return err
}
}
}
return nil
}
func writeSanitized(buf *bufio.Writer, s string) error {
prevUnderscore := false
for _, c := range s {
c = replaceInvalidRune(c)
if c == '_' {
if prevUnderscore {
continue
}
prevUnderscore = true
} else {
prevUnderscore = false
}
if _, err := buf.WriteRune(c); err != nil {
return err
}
}
return nil
}
func replaceInvalidRune(c rune) rune {
if c == ' ' {
return '.'
}
if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || c == ':' || (c >= '0' && c <= '9')) {
return '_'
}
return c
}

309
vendor/github.com/prometheus/client_golang/prometheus/graphite/bridge_test.go generated vendored
View File

@ -1,309 +0,0 @@
package graphite
import (
"bufio"
"bytes"
"io"
"log"
"net"
"os"
"regexp"
"testing"
"time"
"github.com/prometheus/common/model"
"golang.org/x/net/context"
"github.com/prometheus/client_golang/prometheus"
)
func TestSanitize(t *testing.T) {
testCases := []struct {
in, out string
}{
{in: "hello", out: "hello"},
{in: "hE/l1o", out: "hE_l1o"},
{in: "he,*ll(.o", out: "he_ll_o"},
{in: "hello_there%^&", out: "hello_there_"},
}
var buf bytes.Buffer
w := bufio.NewWriter(&buf)
for i, tc := range testCases {
if err := writeSanitized(w, tc.in); err != nil {
t.Fatalf("write failed: %v", err)
}
if err := w.Flush(); err != nil {
t.Fatalf("flush failed: %v", err)
}
if want, got := tc.out, buf.String(); want != got {
t.Fatalf("test case index %d: got sanitized string %s, want %s", i, got, want)
}
buf.Reset()
}
}
func TestWriteSummary(t *testing.T) {
sumVec := prometheus.NewSummaryVec(
prometheus.SummaryOpts{
Name: "name",
Help: "docstring",
ConstLabels: prometheus.Labels{"constname": "constvalue"},
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
},
[]string{"labelname"},
)
sumVec.WithLabelValues("val1").Observe(float64(10))
sumVec.WithLabelValues("val1").Observe(float64(20))
sumVec.WithLabelValues("val1").Observe(float64(30))
sumVec.WithLabelValues("val2").Observe(float64(20))
sumVec.WithLabelValues("val2").Observe(float64(30))
sumVec.WithLabelValues("val2").Observe(float64(40))
reg := prometheus.NewRegistry()
reg.MustRegister(sumVec)
mfs, err := reg.Gather()
if err != nil {
t.Fatalf("error: %v", err)
}
now := model.Time(1477043083)
var buf bytes.Buffer
err = writeMetrics(&buf, mfs, "prefix", now)
if err != nil {
t.Fatalf("error: %v", err)
}
want := `prefix.name.constname.constvalue.labelname.val1.quantile.0_5 20 1477043
prefix.name.constname.constvalue.labelname.val1.quantile.0_9 30 1477043
prefix.name.constname.constvalue.labelname.val1.quantile.0_99 30 1477043
prefix.name_sum.constname.constvalue.labelname.val1 60 1477043
prefix.name_count.constname.constvalue.labelname.val1 3 1477043
prefix.name.constname.constvalue.labelname.val2.quantile.0_5 30 1477043
prefix.name.constname.constvalue.labelname.val2.quantile.0_9 40 1477043
prefix.name.constname.constvalue.labelname.val2.quantile.0_99 40 1477043
prefix.name_sum.constname.constvalue.labelname.val2 90 1477043
prefix.name_count.constname.constvalue.labelname.val2 3 1477043
`
if got := buf.String(); want != got {
t.Fatalf("wanted \n%s\n, got \n%s\n", want, got)
}
}
func TestWriteHistogram(t *testing.T) {
histVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "name",
Help: "docstring",
ConstLabels: prometheus.Labels{"constname": "constvalue"},
Buckets: []float64{0.01, 0.02, 0.05, 0.1},
},
[]string{"labelname"},
)
histVec.WithLabelValues("val1").Observe(float64(10))
histVec.WithLabelValues("val1").Observe(float64(20))
histVec.WithLabelValues("val1").Observe(float64(30))
histVec.WithLabelValues("val2").Observe(float64(20))
histVec.WithLabelValues("val2").Observe(float64(30))
histVec.WithLabelValues("val2").Observe(float64(40))
reg := prometheus.NewRegistry()
reg.MustRegister(histVec)
mfs, err := reg.Gather()
if err != nil {
t.Fatalf("error: %v", err)
}
now := model.Time(1477043083)
var buf bytes.Buffer
err = writeMetrics(&buf, mfs, "prefix", now)
if err != nil {
t.Fatalf("error: %v", err)
}
want := `prefix.name_bucket.constname.constvalue.labelname.val1.le.0_01 0 1477043
prefix.name_bucket.constname.constvalue.labelname.val1.le.0_02 0 1477043
prefix.name_bucket.constname.constvalue.labelname.val1.le.0_05 0 1477043
prefix.name_bucket.constname.constvalue.labelname.val1.le.0_1 0 1477043
prefix.name_sum.constname.constvalue.labelname.val1 60 1477043
prefix.name_count.constname.constvalue.labelname.val1 3 1477043
prefix.name_bucket.constname.constvalue.labelname.val1.le._Inf 3 1477043
prefix.name_bucket.constname.constvalue.labelname.val2.le.0_01 0 1477043
prefix.name_bucket.constname.constvalue.labelname.val2.le.0_02 0 1477043
prefix.name_bucket.constname.constvalue.labelname.val2.le.0_05 0 1477043
prefix.name_bucket.constname.constvalue.labelname.val2.le.0_1 0 1477043
prefix.name_sum.constname.constvalue.labelname.val2 90 1477043
prefix.name_count.constname.constvalue.labelname.val2 3 1477043
prefix.name_bucket.constname.constvalue.labelname.val2.le._Inf 3 1477043
`
if got := buf.String(); want != got {
t.Fatalf("wanted \n%s\n, got \n%s\n", want, got)
}
}
func TestToReader(t *testing.T) {
cntVec := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "name",
Help: "docstring",
ConstLabels: prometheus.Labels{"constname": "constvalue"},
},
[]string{"labelname"},
)
cntVec.WithLabelValues("val1").Inc()
cntVec.WithLabelValues("val2").Inc()
reg := prometheus.NewRegistry()
reg.MustRegister(cntVec)
want := `prefix.name.constname.constvalue.labelname.val1 1 1477043
prefix.name.constname.constvalue.labelname.val2 1 1477043
`
mfs, err := reg.Gather()
if err != nil {
t.Fatalf("error: %v", err)
}
now := model.Time(1477043083)
var buf bytes.Buffer
err = writeMetrics(&buf, mfs, "prefix", now)
if err != nil {
t.Fatalf("error: %v", err)
}
if got := buf.String(); want != got {
t.Fatalf("wanted \n%s\n, got \n%s\n", want, got)
}
}
func TestPush(t *testing.T) {
reg := prometheus.NewRegistry()
cntVec := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "name",
Help: "docstring",
ConstLabels: prometheus.Labels{"constname": "constvalue"},
},
[]string{"labelname"},
)
cntVec.WithLabelValues("val1").Inc()
cntVec.WithLabelValues("val2").Inc()
reg.MustRegister(cntVec)
host := "localhost"
port := ":56789"
b, err := NewBridge(&Config{
URL: host + port,
Gatherer: reg,
Prefix: "prefix",
})
if err != nil {
t.Fatalf("error creating bridge: %v", err)
}
nmg, err := newMockGraphite(port)
if err != nil {
t.Fatalf("error creating mock graphite: %v", err)
}
defer nmg.Close()
err = b.Push()
if err != nil {
t.Fatalf("error pushing: %v", err)
}
wants := []string{
"prefix.name.constname.constvalue.labelname.val1 1",
"prefix.name.constname.constvalue.labelname.val2 1",
}
select {
case got := <-nmg.readc:
for _, want := range wants {
matched, err := regexp.MatchString(want, got)
if err != nil {
t.Fatalf("error pushing: %v", err)
}
if !matched {
t.Fatalf("missing metric:\nno match for %s received by server:\n%s", want, got)
}
}
return
case err := <-nmg.errc:
t.Fatalf("error reading push: %v", err)
case <-time.After(50 * time.Millisecond):
t.Fatalf("no result from graphite server")
}
}
func newMockGraphite(port string) (*mockGraphite, error) {
readc := make(chan string)
errc := make(chan error)
ln, err := net.Listen("tcp", port)
if err != nil {
return nil, err
}
go func() {
conn, err := ln.Accept()
if err != nil {
errc <- err
}
var b bytes.Buffer
io.Copy(&b, conn)
readc <- b.String()
}()
return &mockGraphite{
readc: readc,
errc: errc,
Listener: ln,
}, nil
}
type mockGraphite struct {
readc chan string
errc chan error
net.Listener
}
func ExampleBridge() {
b, err := NewBridge(&Config{
URL: "graphite.example.org:3099",
Gatherer: prometheus.DefaultGatherer,
Prefix: "prefix",
Interval: 15 * time.Second,
Timeout: 10 * time.Second,
ErrorHandling: AbortOnError,
Logger: log.New(os.Stdout, "graphite bridge: ", log.Lshortfile),
})
if err != nil {
panic(err)
}
go func() {
// Start something in a goroutine that uses metrics.
}()
// Push initial metrics to Graphite. Fail fast if the push fails.
if err := b.Push(); err != nil {
panic(err)
}
// Create a Context to control stopping the Run() loop that pushes
// metrics to Graphite.
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
// Start pushing metrics to Graphite in the Run() loop.
b.Run(ctx)
}

4
vendor/github.com/prometheus/client_golang/prometheus/histogram.go generated vendored
View File

@ -430,8 +430,8 @@ func NewConstHistogram(
buckets map[float64]uint64,
labelValues ...string,
) (Metric, error) {
if len(desc.variableLabels) != len(labelValues) {
return nil, errInconsistentCardinality
if err := validateLabelValues(labelValues, len(desc.variableLabels)); err != nil {
return nil, err
}
return &constHistogram{
desc: desc,

348
vendor/github.com/prometheus/client_golang/prometheus/histogram_test.go generated vendored
View File

@ -1,348 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus
import (
"math"
"math/rand"
"reflect"
"sort"
"sync"
"testing"
"testing/quick"
dto "github.com/prometheus/client_model/go"
)
func benchmarkHistogramObserve(w int, b *testing.B) {
b.StopTimer()
wg := new(sync.WaitGroup)
wg.Add(w)
g := new(sync.WaitGroup)
g.Add(1)
s := NewHistogram(HistogramOpts{})
for i := 0; i < w; i++ {
go func() {
g.Wait()
for i := 0; i < b.N; i++ {
s.Observe(float64(i))
}
wg.Done()
}()
}
b.StartTimer()
g.Done()
wg.Wait()
}
func BenchmarkHistogramObserve1(b *testing.B) {
benchmarkHistogramObserve(1, b)
}
func BenchmarkHistogramObserve2(b *testing.B) {
benchmarkHistogramObserve(2, b)
}
func BenchmarkHistogramObserve4(b *testing.B) {
benchmarkHistogramObserve(4, b)
}
func BenchmarkHistogramObserve8(b *testing.B) {
benchmarkHistogramObserve(8, b)
}
func benchmarkHistogramWrite(w int, b *testing.B) {
b.StopTimer()
wg := new(sync.WaitGroup)
wg.Add(w)
g := new(sync.WaitGroup)
g.Add(1)
s := NewHistogram(HistogramOpts{})
for i := 0; i < 1000000; i++ {
s.Observe(float64(i))
}
for j := 0; j < w; j++ {
outs := make([]dto.Metric, b.N)
go func(o []dto.Metric) {
g.Wait()
for i := 0; i < b.N; i++ {
s.Write(&o[i])
}
wg.Done()
}(outs)
}
b.StartTimer()
g.Done()
wg.Wait()
}
func BenchmarkHistogramWrite1(b *testing.B) {
benchmarkHistogramWrite(1, b)
}
func BenchmarkHistogramWrite2(b *testing.B) {
benchmarkHistogramWrite(2, b)
}
func BenchmarkHistogramWrite4(b *testing.B) {
benchmarkHistogramWrite(4, b)
}
func BenchmarkHistogramWrite8(b *testing.B) {
benchmarkHistogramWrite(8, b)
}
func TestHistogramNonMonotonicBuckets(t *testing.T) {
testCases := map[string][]float64{
"not strictly monotonic": {1, 2, 2, 3},
"not monotonic at all": {1, 2, 4, 3, 5},
"have +Inf in the middle": {1, 2, math.Inf(+1), 3},
}
for name, buckets := range testCases {
func() {
defer func() {
if r := recover(); r == nil {
t.Errorf("Buckets %v are %s but NewHistogram did not panic.", buckets, name)
}
}()
_ = NewHistogram(HistogramOpts{
Name: "test_histogram",
Help: "helpless",
Buckets: buckets,
})
}()
}
}
// Intentionally adding +Inf here to test if that case is handled correctly.
// Also, getCumulativeCounts depends on it.
var testBuckets = []float64{-2, -1, -0.5, 0, 0.5, 1, 2, math.Inf(+1)}
func TestHistogramConcurrency(t *testing.T) {
if testing.Short() {
t.Skip("Skipping test in short mode.")
}
rand.Seed(42)
it := func(n uint32) bool {
mutations := int(n%1e4 + 1e4)
concLevel := int(n%5 + 1)
total := mutations * concLevel
var start, end sync.WaitGroup
start.Add(1)
end.Add(concLevel)
sum := NewHistogram(HistogramOpts{
Name: "test_histogram",
Help: "helpless",
Buckets: testBuckets,
})
allVars := make([]float64, total)
var sampleSum float64
for i := 0; i < concLevel; i++ {
vals := make([]float64, mutations)
for j := 0; j < mutations; j++ {
v := rand.NormFloat64()
vals[j] = v
allVars[i*mutations+j] = v
sampleSum += v
}
go func(vals []float64) {
start.Wait()
for _, v := range vals {
sum.Observe(v)
}
end.Done()
}(vals)
}
sort.Float64s(allVars)
start.Done()
end.Wait()
m := &dto.Metric{}
sum.Write(m)
if got, want := int(*m.Histogram.SampleCount), total; got != want {
t.Errorf("got sample count %d, want %d", got, want)
}
if got, want := *m.Histogram.SampleSum, sampleSum; math.Abs((got-want)/want) > 0.001 {
t.Errorf("got sample sum %f, want %f", got, want)
}
wantCounts := getCumulativeCounts(allVars)
if got, want := len(m.Histogram.Bucket), len(testBuckets)-1; got != want {
t.Errorf("got %d buckets in protobuf, want %d", got, want)
}
for i, wantBound := range testBuckets {
if i == len(testBuckets)-1 {
break // No +Inf bucket in protobuf.
}
if gotBound := *m.Histogram.Bucket[i].UpperBound; gotBound != wantBound {
t.Errorf("got bound %f, want %f", gotBound, wantBound)
}
if gotCount, wantCount := *m.Histogram.Bucket[i].CumulativeCount, wantCounts[i]; gotCount != wantCount {
t.Errorf("got count %d, want %d", gotCount, wantCount)
}
}
return true
}
if err := quick.Check(it, nil); err != nil {
t.Error(err)
}
}
func TestHistogramVecConcurrency(t *testing.T) {
if testing.Short() {
t.Skip("Skipping test in short mode.")
}
rand.Seed(42)
objectives := make([]float64, 0, len(DefObjectives))
for qu := range DefObjectives {
objectives = append(objectives, qu)
}
sort.Float64s(objectives)
it := func(n uint32) bool {
mutations := int(n%1e4 + 1e4)
concLevel := int(n%7 + 1)
vecLength := int(n%3 + 1)
var start, end sync.WaitGroup
start.Add(1)
end.Add(concLevel)
his := NewHistogramVec(
HistogramOpts{
Name: "test_histogram",
Help: "helpless",
Buckets: []float64{-2, -1, -0.5, 0, 0.5, 1, 2, math.Inf(+1)},
},
[]string{"label"},
)
allVars := make([][]float64, vecLength)
sampleSums := make([]float64, vecLength)
for i := 0; i < concLevel; i++ {
vals := make([]float64, mutations)
picks := make([]int, mutations)
for j := 0; j < mutations; j++ {
v := rand.NormFloat64()
vals[j] = v
pick := rand.Intn(vecLength)
picks[j] = pick
allVars[pick] = append(allVars[pick], v)
sampleSums[pick] += v
}
go func(vals []float64) {
start.Wait()
for i, v := range vals {
his.WithLabelValues(string('A' + picks[i])).Observe(v)
}
end.Done()
}(vals)
}
for _, vars := range allVars {
sort.Float64s(vars)
}
start.Done()
end.Wait()
for i := 0; i < vecLength; i++ {
m := &dto.Metric{}
s := his.WithLabelValues(string('A' + i))
s.(Histogram).Write(m)
if got, want := len(m.Histogram.Bucket), len(testBuckets)-1; got != want {
t.Errorf("got %d buckets in protobuf, want %d", got, want)
}
if got, want := int(*m.Histogram.SampleCount), len(allVars[i]); got != want {
t.Errorf("got sample count %d, want %d", got, want)
}
if got, want := *m.Histogram.SampleSum, sampleSums[i]; math.Abs((got-want)/want) > 0.001 {
t.Errorf("got sample sum %f, want %f", got, want)
}
wantCounts := getCumulativeCounts(allVars[i])
for j, wantBound := range testBuckets {
if j == len(testBuckets)-1 {
break // No +Inf bucket in protobuf.
}
if gotBound := *m.Histogram.Bucket[j].UpperBound; gotBound != wantBound {
t.Errorf("got bound %f, want %f", gotBound, wantBound)
}
if gotCount, wantCount := *m.Histogram.Bucket[j].CumulativeCount, wantCounts[j]; gotCount != wantCount {
t.Errorf("got count %d, want %d", gotCount, wantCount)
}
}
}
return true
}
if err := quick.Check(it, nil); err != nil {
t.Error(err)
}
}
func getCumulativeCounts(vars []float64) []uint64 {
counts := make([]uint64, len(testBuckets))
for _, v := range vars {
for i := len(testBuckets) - 1; i >= 0; i-- {
if v > testBuckets[i] {
break
}
counts[i]++
}
}
return counts
}
func TestBuckets(t *testing.T) {
got := LinearBuckets(-15, 5, 6)
want := []float64{-15, -10, -5, 0, 5, 10}
if !reflect.DeepEqual(got, want) {
t.Errorf("linear buckets: got %v, want %v", got, want)
}
got = ExponentialBuckets(100, 1.2, 3)
want = []float64{100, 120, 144}
if !reflect.DeepEqual(got, want) {
t.Errorf("linear buckets: got %v, want %v", got, want)
}
}

2
vendor/github.com/prometheus/client_golang/prometheus/http.go generated vendored
View File

@ -96,7 +96,7 @@ func UninstrumentedHandler() http.Handler {
closer.Close()
}
if lastErr != nil && buf.Len() == 0 {
http.Error(w, "No metrics encoded, last error:\n\n"+err.Error(), http.StatusInternalServerError)
http.Error(w, "No metrics encoded, last error:\n\n"+lastErr.Error(), http.StatusInternalServerError)
return
}
header := w.Header()

154
vendor/github.com/prometheus/client_golang/prometheus/http_test.go generated vendored
View File

@ -1,154 +0,0 @@
// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus
import (
"net/http"
"net/http/httptest"
"testing"
"time"
dto "github.com/prometheus/client_model/go"
)
type respBody string
func (b respBody) ServeHTTP(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusTeapot)
w.Write([]byte(b))
}
func TestInstrumentHandler(t *testing.T) {
defer func(n nower) {
now = n.(nower)
}(now)
instant := time.Now()
end := instant.Add(30 * time.Second)
now = nowSeries(instant, end)
respBody := respBody("Howdy there!")
hndlr := InstrumentHandler("test-handler", respBody)
opts := SummaryOpts{
Subsystem: "http",
ConstLabels: Labels{"handler": "test-handler"},
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
}
reqCnt := NewCounterVec(
CounterOpts{
Namespace: opts.Namespace,
Subsystem: opts.Subsystem,
Name: "requests_total",
Help: "Total number of HTTP requests made.",
ConstLabels: opts.ConstLabels,
},
instLabels,
)
err := Register(reqCnt)
if err == nil {
t.Fatal("expected reqCnt to be registered already")
}
if are, ok := err.(AlreadyRegisteredError); ok {
reqCnt = are.ExistingCollector.(*CounterVec)
} else {
t.Fatal("unexpected registration error:", err)
}
opts.Name = "request_duration_microseconds"
opts.Help = "The HTTP request latencies in microseconds."
reqDur := NewSummary(opts)
err = Register(reqDur)
if err == nil {
t.Fatal("expected reqDur to be registered already")
}
if are, ok := err.(AlreadyRegisteredError); ok {
reqDur = are.ExistingCollector.(Summary)
} else {
t.Fatal("unexpected registration error:", err)
}
opts.Name = "request_size_bytes"
opts.Help = "The HTTP request sizes in bytes."
reqSz := NewSummary(opts)
err = Register(reqSz)
if err == nil {
t.Fatal("expected reqSz to be registered already")
}
if _, ok := err.(AlreadyRegisteredError); !ok {
t.Fatal("unexpected registration error:", err)
}
opts.Name = "response_size_bytes"
opts.Help = "The HTTP response sizes in bytes."
resSz := NewSummary(opts)
err = Register(resSz)
if err == nil {
t.Fatal("expected resSz to be registered already")
}
if _, ok := err.(AlreadyRegisteredError); !ok {
t.Fatal("unexpected registration error:", err)
}
reqCnt.Reset()
resp := httptest.NewRecorder()
req := &http.Request{
Method: "GET",
}
hndlr.ServeHTTP(resp, req)
if resp.Code != http.StatusTeapot {
t.Fatalf("expected status %d, got %d", http.StatusTeapot, resp.Code)
}
if string(resp.Body.Bytes()) != "Howdy there!" {
t.Fatalf("expected body %s, got %s", "Howdy there!", string(resp.Body.Bytes()))
}
out := &dto.Metric{}
reqDur.Write(out)
if want, got := "test-handler", out.Label[0].GetValue(); want != got {
t.Errorf("want label value %q in reqDur, got %q", want, got)
}
if want, got := uint64(1), out.Summary.GetSampleCount(); want != got {
t.Errorf("want sample count %d in reqDur, got %d", want, got)
}
out.Reset()
if want, got := 1, len(reqCnt.children); want != got {
t.Errorf("want %d children in reqCnt, got %d", want, got)
}
cnt, err := reqCnt.GetMetricWithLabelValues("get", "418")
if err != nil {
t.Fatal(err)
}
cnt.Write(out)
if want, got := "418", out.Label[0].GetValue(); want != got {
t.Errorf("want label value %q in reqCnt, got %q", want, got)
}
if want, got := "test-handler", out.Label[1].GetValue(); want != got {
t.Errorf("want label value %q in reqCnt, got %q", want, got)
}
if want, got := "get", out.Label[2].GetValue(); want != got {
t.Errorf("want label value %q in reqCnt, got %q", want, got)
}
if out.Counter == nil {
t.Fatal("expected non-nil counter in reqCnt")
}
if want, got := 1., out.Counter.GetValue(); want != got {
t.Errorf("want reqCnt of %f, got %f", want, got)
}
}

57
vendor/github.com/prometheus/client_golang/prometheus/labels.go generated vendored Normal file
View File

@ -0,0 +1,57 @@
package prometheus
import (
"errors"
"fmt"
"strings"
"unicode/utf8"
"github.com/prometheus/common/model"
)
// Labels represents a collection of label name -> value mappings. This type is
// commonly used with the With(Labels) and GetMetricWith(Labels) methods of
// metric vector Collectors, e.g.:
// myVec.With(Labels{"code": "404", "method": "GET"}).Add(42)
//
// The other use-case is the specification of constant label pairs in Opts or to
// create a Desc.
type Labels map[string]string
// reservedLabelPrefix is a prefix which is not legal in user-supplied
// label names.
const reservedLabelPrefix = "__"
var errInconsistentCardinality = errors.New("inconsistent label cardinality")
func validateValuesInLabels(labels Labels, expectedNumberOfValues int) error {
if len(labels) != expectedNumberOfValues {
return errInconsistentCardinality
}
for name, val := range labels {
if !utf8.ValidString(val) {
return fmt.Errorf("label %s: value %q is not valid UTF-8", name, val)
}
}
return nil
}
func validateLabelValues(vals []string, expectedNumberOfValues int) error {
if len(vals) != expectedNumberOfValues {
return errInconsistentCardinality
}
for _, val := range vals {
if !utf8.ValidString(val) {
return fmt.Errorf("label value %q is not valid UTF-8", val)
}
}
return nil
}
func checkLabelName(l string) bool {
return model.LabelName(l).IsValid() && !strings.HasPrefix(l, reservedLabelPrefix)
}

58
vendor/github.com/prometheus/client_golang/prometheus/process_collector_test.go generated vendored
View File

@ -1,58 +0,0 @@
package prometheus
import (
"bytes"
"os"
"regexp"
"testing"
"github.com/prometheus/common/expfmt"
"github.com/prometheus/procfs"
)
func TestProcessCollector(t *testing.T) {
if _, err := procfs.Self(); err != nil {
t.Skipf("skipping TestProcessCollector, procfs not available: %s", err)
}
registry := NewRegistry()
if err := registry.Register(NewProcessCollector(os.Getpid(), "")); err != nil {
t.Fatal(err)
}
if err := registry.Register(NewProcessCollectorPIDFn(
func() (int, error) { return os.Getpid(), nil }, "foobar"),
); err != nil {
t.Fatal(err)
}
mfs, err := registry.Gather()
if err != nil {
t.Fatal(err)
}
var buf bytes.Buffer
for _, mf := range mfs {
if _, err := expfmt.MetricFamilyToText(&buf, mf); err != nil {
t.Fatal(err)
}
}
for _, re := range []*regexp.Regexp{
regexp.MustCompile("\nprocess_cpu_seconds_total [0-9]"),
regexp.MustCompile("\nprocess_max_fds [1-9]"),
regexp.MustCompile("\nprocess_open_fds [1-9]"),
regexp.MustCompile("\nprocess_virtual_memory_bytes [1-9]"),
regexp.MustCompile("\nprocess_resident_memory_bytes [1-9]"),
regexp.MustCompile("\nprocess_start_time_seconds [0-9.]{10,}"),
regexp.MustCompile("\nfoobar_process_cpu_seconds_total [0-9]"),
regexp.MustCompile("\nfoobar_process_max_fds [1-9]"),
regexp.MustCompile("\nfoobar_process_open_fds [1-9]"),
regexp.MustCompile("\nfoobar_process_virtual_memory_bytes [1-9]"),
regexp.MustCompile("\nfoobar_process_resident_memory_bytes [1-9]"),
regexp.MustCompile("\nfoobar_process_start_time_seconds [0-9.]{10,}"),
} {
if !re.Match(buf.Bytes()) {
t.Errorf("want body to match %s\n%s", re, buf.String())
}
}
}

2
vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go generated vendored
View File

@ -128,7 +128,7 @@ func HandlerFor(reg prometheus.Gatherer, opts HandlerOpts) http.Handler {
closer.Close()
}
if lastErr != nil && buf.Len() == 0 {
http.Error(w, "No metrics encoded, last error:\n\n"+err.Error(), http.StatusInternalServerError)
http.Error(w, "No metrics encoded, last error:\n\n"+lastErr.Error(), http.StatusInternalServerError)
return
}
header := w.Header()

131
vendor/github.com/prometheus/client_golang/prometheus/promhttp/http_test.go generated vendored
View File

@ -1,131 +0,0 @@
// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package promhttp
import (
"bytes"
"errors"
"log"
"net/http"
"net/http/httptest"
"testing"
"github.com/prometheus/client_golang/prometheus"
)
type errorCollector struct{}
func (e errorCollector) Describe(ch chan<- *prometheus.Desc) {
ch <- prometheus.NewDesc("invalid_metric", "not helpful", nil, nil)
}
func (e errorCollector) Collect(ch chan<- prometheus.Metric) {
ch <- prometheus.NewInvalidMetric(
prometheus.NewDesc("invalid_metric", "not helpful", nil, nil),
errors.New("collect error"),
)
}
func TestHandlerErrorHandling(t *testing.T) {
// Create a registry that collects a MetricFamily with two elements,
// another with one, and reports an error.
reg := prometheus.NewRegistry()
cnt := prometheus.NewCounter(prometheus.CounterOpts{
Name: "the_count",
Help: "Ah-ah-ah! Thunder and lightning!",
})
reg.MustRegister(cnt)
cntVec := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "name",
Help: "docstring",
ConstLabels: prometheus.Labels{"constname": "constvalue"},
},
[]string{"labelname"},
)
cntVec.WithLabelValues("val1").Inc()
cntVec.WithLabelValues("val2").Inc()
reg.MustRegister(cntVec)
reg.MustRegister(errorCollector{})
logBuf := &bytes.Buffer{}
logger := log.New(logBuf, "", 0)
writer := httptest.NewRecorder()
request, _ := http.NewRequest("GET", "/", nil)
request.Header.Add("Accept", "test/plain")
errorHandler := HandlerFor(reg, HandlerOpts{
ErrorLog: logger,
ErrorHandling: HTTPErrorOnError,
})
continueHandler := HandlerFor(reg, HandlerOpts{
ErrorLog: logger,
ErrorHandling: ContinueOnError,
})
panicHandler := HandlerFor(reg, HandlerOpts{
ErrorLog: logger,
ErrorHandling: PanicOnError,
})
wantMsg := `error gathering metrics: error collecting metric Desc{fqName: "invalid_metric", help: "not helpful", constLabels: {}, variableLabels: []}: collect error
`
wantErrorBody := `An error has occurred during metrics gathering:
error collecting metric Desc{fqName: "invalid_metric", help: "not helpful", constLabels: {}, variableLabels: []}: collect error
`
wantOKBody := `# HELP name docstring
# TYPE name counter
name{constname="constvalue",labelname="val1"} 1
name{constname="constvalue",labelname="val2"} 1
# HELP the_count Ah-ah-ah! Thunder and lightning!
# TYPE the_count counter
the_count 0
`
errorHandler.ServeHTTP(writer, request)
if got, want := writer.Code, http.StatusInternalServerError; got != want {
t.Errorf("got HTTP status code %d, want %d", got, want)
}
if got := logBuf.String(); got != wantMsg {
t.Errorf("got log message:\n%s\nwant log mesage:\n%s\n", got, wantMsg)
}
if got := writer.Body.String(); got != wantErrorBody {
t.Errorf("got body:\n%s\nwant body:\n%s\n", got, wantErrorBody)
}
logBuf.Reset()
writer.Body.Reset()
writer.Code = http.StatusOK
continueHandler.ServeHTTP(writer, request)
if got, want := writer.Code, http.StatusOK; got != want {
t.Errorf("got HTTP status code %d, want %d", got, want)
}
if got := logBuf.String(); got != wantMsg {
t.Errorf("got log message %q, want %q", got, wantMsg)
}
if got := writer.Body.String(); got != wantOKBody {
t.Errorf("got body %q, want %q", got, wantOKBody)
}
defer func() {
if err := recover(); err == nil {
t.Error("expected panic from panicHandler")
}
}()
panicHandler.ServeHTTP(writer, request)
}

195
vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client_1_8_test.go generated vendored
View File

@ -1,195 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.8
package promhttp
import (
"log"
"net/http"
"testing"
"time"
"github.com/prometheus/client_golang/prometheus"
)
func TestClientMiddlewareAPI(t *testing.T) {
client := http.DefaultClient
client.Timeout = 1 * time.Second
reg := prometheus.NewRegistry()
inFlightGauge := prometheus.NewGauge(prometheus.GaugeOpts{
Name: "client_in_flight_requests",
Help: "A gauge of in-flight requests for the wrapped client.",
})
counter := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "client_api_requests_total",
Help: "A counter for requests from the wrapped client.",
},
[]string{"code", "method"},
)
dnsLatencyVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "dns_duration_seconds",
Help: "Trace dns latency histogram.",
Buckets: []float64{.005, .01, .025, .05},
},
[]string{"event"},
)
tlsLatencyVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "tls_duration_seconds",
Help: "Trace tls latency histogram.",
Buckets: []float64{.05, .1, .25, .5},
},
[]string{"event"},
)
histVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "request_duration_seconds",
Help: "A histogram of request latencies.",
Buckets: prometheus.DefBuckets,
},
[]string{"method"},
)
reg.MustRegister(counter, tlsLatencyVec, dnsLatencyVec, histVec, inFlightGauge)
trace := &InstrumentTrace{
DNSStart: func(t float64) {
dnsLatencyVec.WithLabelValues("dns_start")
},
DNSDone: func(t float64) {
dnsLatencyVec.WithLabelValues("dns_done")
},
TLSHandshakeStart: func(t float64) {
tlsLatencyVec.WithLabelValues("tls_handshake_start")
},
TLSHandshakeDone: func(t float64) {
tlsLatencyVec.WithLabelValues("tls_handshake_done")
},
}
client.Transport = InstrumentRoundTripperInFlight(inFlightGauge,
InstrumentRoundTripperCounter(counter,
InstrumentRoundTripperTrace(trace,
InstrumentRoundTripperDuration(histVec, http.DefaultTransport),
),
),
)
resp, err := client.Get("http://google.com")
if err != nil {
t.Fatalf("%v", err)
}
defer resp.Body.Close()
}
func ExampleInstrumentRoundTripperDuration() {
client := http.DefaultClient
client.Timeout = 1 * time.Second
inFlightGauge := prometheus.NewGauge(prometheus.GaugeOpts{
Name: "client_in_flight_requests",
Help: "A gauge of in-flight requests for the wrapped client.",
})
counter := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "client_api_requests_total",
Help: "A counter for requests from the wrapped client.",
},
[]string{"code", "method"},
)
// dnsLatencyVec uses custom buckets based on expected dns durations.
// It has an instance label "event", which is set in the
// DNSStart and DNSDonehook functions defined in the
// InstrumentTrace struct below.
dnsLatencyVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "dns_duration_seconds",
Help: "Trace dns latency histogram.",
Buckets: []float64{.005, .01, .025, .05},
},
[]string{"event"},
)
// tlsLatencyVec uses custom buckets based on expected tls durations.
// It has an instance label "event", which is set in the
// TLSHandshakeStart and TLSHandshakeDone hook functions defined in the
// InstrumentTrace struct below.
tlsLatencyVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "tls_duration_seconds",
Help: "Trace tls latency histogram.",
Buckets: []float64{.05, .1, .25, .5},
},
[]string{"event"},
)
// histVec has no labels, making it a zero-dimensional ObserverVec.
histVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "request_duration_seconds",
Help: "A histogram of request latencies.",
Buckets: prometheus.DefBuckets,
},
[]string{},
)
// Register all of the metrics in the standard registry.
prometheus.MustRegister(counter, tlsLatencyVec, dnsLatencyVec, histVec, inFlightGauge)
// Define functions for the available httptrace.ClientTrace hook
// functions that we want to instrument.
trace := &InstrumentTrace{
DNSStart: func(t float64) {
dnsLatencyVec.WithLabelValues("dns_start")
},
DNSDone: func(t float64) {
dnsLatencyVec.WithLabelValues("dns_done")
},
TLSHandshakeStart: func(t float64) {
tlsLatencyVec.WithLabelValues("tls_handshake_start")
},
TLSHandshakeDone: func(t float64) {
tlsLatencyVec.WithLabelValues("tls_handshake_done")
},
}
// Wrap the default RoundTripper with middleware.
roundTripper := InstrumentRoundTripperInFlight(inFlightGauge,
InstrumentRoundTripperCounter(counter,
InstrumentRoundTripperTrace(trace,
InstrumentRoundTripperDuration(histVec, http.DefaultTransport),
),
),
)
// Set the RoundTripper on our client.
client.Transport = roundTripper
resp, err := client.Get("http://google.com")
if err != nil {
log.Printf("error: %v", err)
}
defer resp.Body.Close()
}

233
vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_server_test.go generated vendored
View File

@ -1,233 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package promhttp
import (
"io"
"log"
"net/http"
"net/http/httptest"
"testing"
"github.com/prometheus/client_golang/prometheus"
)
func TestMiddlewareAPI(t *testing.T) {
reg := prometheus.NewRegistry()
inFlightGauge := prometheus.NewGauge(prometheus.GaugeOpts{
Name: "in_flight_requests",
Help: "A gauge of requests currently being served by the wrapped handler.",
})
counter := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "api_requests_total",
Help: "A counter for requests to the wrapped handler.",
},
[]string{"code", "method"},
)
histVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "response_duration_seconds",
Help: "A histogram of request latencies.",
Buckets: prometheus.DefBuckets,
ConstLabels: prometheus.Labels{"handler": "api"},
},
[]string{"method"},
)
writeHeaderVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "write_header_duration_seconds",
Help: "A histogram of time to first write latencies.",
Buckets: prometheus.DefBuckets,
ConstLabels: prometheus.Labels{"handler": "api"},
},
[]string{},
)
responseSize := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "push_request_size_bytes",
Help: "A histogram of request sizes for requests.",
Buckets: []float64{200, 500, 900, 1500},
},
[]string{},
)
handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("OK"))
})
reg.MustRegister(inFlightGauge, counter, histVec, responseSize, writeHeaderVec)
chain := InstrumentHandlerInFlight(inFlightGauge,
InstrumentHandlerCounter(counter,
InstrumentHandlerDuration(histVec,
InstrumentHandlerTimeToWriteHeader(writeHeaderVec,
InstrumentHandlerResponseSize(responseSize, handler),
),
),
),
)
r, _ := http.NewRequest("GET", "www.example.com", nil)
w := httptest.NewRecorder()
chain.ServeHTTP(w, r)
}
func TestInstrumentTimeToFirstWrite(t *testing.T) {
var i int
dobs := &responseWriterDelegator{
ResponseWriter: httptest.NewRecorder(),
observeWriteHeader: func(status int) {
i = status
},
}
d := newDelegator(dobs, nil)
d.WriteHeader(http.StatusOK)
if i != http.StatusOK {
t.Fatalf("failed to execute observeWriteHeader")
}
}
// testResponseWriter is an http.ResponseWriter that also implements
// http.CloseNotifier, http.Flusher, and io.ReaderFrom.
type testResponseWriter struct {
closeNotifyCalled, flushCalled, readFromCalled bool
}
func (t *testResponseWriter) Header() http.Header { return nil }
func (t *testResponseWriter) Write([]byte) (int, error) { return 0, nil }
func (t *testResponseWriter) WriteHeader(int) {}
func (t *testResponseWriter) CloseNotify() <-chan bool {
t.closeNotifyCalled = true
return nil
}
func (t *testResponseWriter) Flush() { t.flushCalled = true }
func (t *testResponseWriter) ReadFrom(io.Reader) (int64, error) {
t.readFromCalled = true
return 0, nil
}
func TestInterfaceUpgrade(t *testing.T) {
w := &testResponseWriter{}
d := newDelegator(w, nil)
d.(http.CloseNotifier).CloseNotify()
if !w.closeNotifyCalled {
t.Error("CloseNotify not called")
}
d.(http.Flusher).Flush()
if !w.flushCalled {
t.Error("Flush not called")
}
d.(io.ReaderFrom).ReadFrom(nil)
if !w.readFromCalled {
t.Error("ReadFrom not called")
}
if _, ok := d.(http.Hijacker); ok {
t.Error("delegator unexpectedly implements http.Hijacker")
}
}
func ExampleInstrumentHandlerDuration() {
inFlightGauge := prometheus.NewGauge(prometheus.GaugeOpts{
Name: "in_flight_requests",
Help: "A gauge of requests currently being served by the wrapped handler.",
})
counter := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "api_requests_total",
Help: "A counter for requests to the wrapped handler.",
},
[]string{"code", "method"},
)
// pushVec and pullVec are partitioned by the HTTP method and use custom
// buckets based on the expected request duration. ConstLabels are used
// to set a handler label to mark pushVec as tracking the durations for
// pushes and pullVec as tracking the durations for pulls. Note that
// Name, Help, and Buckets need to be the same for consistency, so we
// use the same HistogramOpts after just modifying the ConstLabels.
histogramOpts := prometheus.HistogramOpts{
Name: "request_duration_seconds",
Help: "A histogram of latencies for requests.",
Buckets: []float64{.25, .5, 1, 2.5, 5, 10},
ConstLabels: prometheus.Labels{"handler": "push"},
}
pushVec := prometheus.NewHistogramVec(
histogramOpts,
[]string{"method"},
)
histogramOpts.ConstLabels = prometheus.Labels{"handler": "pull"}
pullVec := prometheus.NewHistogramVec(
histogramOpts,
[]string{"method"},
)
// responseSize has no labels, making it a zero-dimensional
// ObserverVec.
responseSize := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "response_size_bytes",
Help: "A histogram of response sizes for requests.",
Buckets: []float64{200, 500, 900, 1500},
},
[]string{},
)
// Create the handlers that will be wrapped by the middleware.
pushHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("Push"))
})
pullHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("Pull"))
})
// Register all of the metrics in the standard registry.
prometheus.MustRegister(inFlightGauge, counter, pullVec, pushVec, responseSize)
// Wrap the pushHandler with our shared middleware, but use the
// endpoint-specific pushVec with InstrumentHandlerDuration.
pushChain := InstrumentHandlerInFlight(inFlightGauge,
InstrumentHandlerCounter(counter,
InstrumentHandlerDuration(pushVec,
InstrumentHandlerResponseSize(responseSize, pushHandler),
),
),
)
// Wrap the pushHandler with the shared middleware, but use the
// endpoint-specific pullVec with InstrumentHandlerDuration.
pullChain := InstrumentHandlerInFlight(inFlightGauge,
InstrumentHandlerCounter(counter,
InstrumentHandlerDuration(pullVec,
InstrumentHandlerResponseSize(responseSize, pullHandler),
),
),
)
http.Handle("/metrics", Handler())
http.Handle("/push", pushChain)
http.Handle("/pull", pullChain)
if err := http.ListenAndServe(":3000", nil); err != nil {
log.Fatal(err)
}
}

84
vendor/github.com/prometheus/client_golang/prometheus/push/example_add_from_gatherer_test.go generated vendored
View File

@ -1,84 +0,0 @@
// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Copyright (c) 2013, The Prometheus Authors
// All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be found
// in the LICENSE file.
package push_test
import (
"fmt"
"time"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/push"
)
var (
completionTime = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "db_backup_last_completion_timestamp_seconds",
Help: "The timestamp of the last completion of a DB backup, successful or not.",
})
successTime = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "db_backup_last_success_timestamp_seconds",
Help: "The timestamp of the last successful completion of a DB backup.",
})
duration = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "db_backup_duration_seconds",
Help: "The duration of the last DB backup in seconds.",
})
records = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "db_backup_records_processed",
Help: "The number of records processed in the last DB backup.",
})
)
func performBackup() (int, error) {
// Perform the backup and return the number of backed up records and any
// applicable error.
// ...
return 42, nil
}
func ExampleAddFromGatherer() {
registry := prometheus.NewRegistry()
registry.MustRegister(completionTime, duration, records)
// Note that successTime is not registered at this time.
start := time.Now()
n, err := performBackup()
records.Set(float64(n))
// Note that time.Since only uses a monotonic clock in Go1.9+.
duration.Set(time.Since(start).Seconds())
completionTime.SetToCurrentTime()
if err != nil {
fmt.Println("DB backup failed:", err)
} else {
// Only now register successTime.
registry.MustRegister(successTime)
successTime.SetToCurrentTime()
}
// AddFromGatherer is used here rather than FromGatherer to not delete a
// previously pushed success timestamp in case of a failure of this
// backup.
if err := push.AddFromGatherer(
"db_backup", nil,
"http://pushgateway:9091",
registry,
); err != nil {
fmt.Println("Could not push to Pushgateway:", err)
}
}

172
vendor/github.com/prometheus/client_golang/prometheus/push/push.go generated vendored
View File

@ -1,172 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Copyright (c) 2013, The Prometheus Authors
// All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be found
// in the LICENSE file.
// Package push provides functions to push metrics to a Pushgateway. The metrics
// to push are either collected from a provided registry, or from explicitly
// listed collectors.
//
// See the documentation of the Pushgateway to understand the meaning of the
// grouping parameters and the differences between push.Registry and
// push.Collectors on the one hand and push.AddRegistry and push.AddCollectors
// on the other hand: https://github.com/prometheus/pushgateway
package push
import (
"bytes"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"os"
"strings"
"github.com/prometheus/common/expfmt"
"github.com/prometheus/common/model"
"github.com/prometheus/client_golang/prometheus"
)
const contentTypeHeader = "Content-Type"
// FromGatherer triggers a metric collection by the provided Gatherer (which is
// usually implemented by a prometheus.Registry) and pushes all gathered metrics
// to the Pushgateway specified by url, using the provided job name and the
// (optional) further grouping labels (the grouping map may be nil). See the
// Pushgateway documentation for detailed implications of the job and other
// grouping labels. Neither the job name nor any grouping label value may
// contain a "/". The metrics pushed must not contain a job label of their own
// nor any of the grouping labels.
//
// You can use just host:port or ip:port as url, in which case 'http://' is
// added automatically. You can also include the schema in the URL. However, do
// not include the '/metrics/jobs/...' part.
//
// Note that all previously pushed metrics with the same job and other grouping
// labels will be replaced with the metrics pushed by this call. (It uses HTTP
// method 'PUT' to push to the Pushgateway.)
func FromGatherer(job string, grouping map[string]string, url string, g prometheus.Gatherer) error {
return push(job, grouping, url, g, "PUT")
}
// AddFromGatherer works like FromGatherer, but only previously pushed metrics
// with the same name (and the same job and other grouping labels) will be
// replaced. (It uses HTTP method 'POST' to push to the Pushgateway.)
func AddFromGatherer(job string, grouping map[string]string, url string, g prometheus.Gatherer) error {
return push(job, grouping, url, g, "POST")
}
func push(job string, grouping map[string]string, pushURL string, g prometheus.Gatherer, method string) error {
if !strings.Contains(pushURL, "://") {
pushURL = "http://" + pushURL
}
if strings.HasSuffix(pushURL, "/") {
pushURL = pushURL[:len(pushURL)-1]
}
if strings.Contains(job, "/") {
return fmt.Errorf("job contains '/': %s", job)
}
urlComponents := []string{url.QueryEscape(job)}
for ln, lv := range grouping {
if !model.LabelName(ln).IsValid() {
return fmt.Errorf("grouping label has invalid name: %s", ln)
}
if strings.Contains(lv, "/") {
return fmt.Errorf("value of grouping label %s contains '/': %s", ln, lv)
}
urlComponents = append(urlComponents, ln, lv)
}
pushURL = fmt.Sprintf("%s/metrics/job/%s", pushURL, strings.Join(urlComponents, "/"))
mfs, err := g.Gather()
if err != nil {
return err
}
buf := &bytes.Buffer{}
enc := expfmt.NewEncoder(buf, expfmt.FmtProtoDelim)
// Check for pre-existing grouping labels:
for _, mf := range mfs {
for _, m := range mf.GetMetric() {
for _, l := range m.GetLabel() {
if l.GetName() == "job" {
return fmt.Errorf("pushed metric %s (%s) already contains a job label", mf.GetName(), m)
}
if _, ok := grouping[l.GetName()]; ok {
return fmt.Errorf(
"pushed metric %s (%s) already contains grouping label %s",
mf.GetName(), m, l.GetName(),
)
}
}
}
enc.Encode(mf)
}
req, err := http.NewRequest(method, pushURL, buf)
if err != nil {
return err
}
req.Header.Set(contentTypeHeader, string(expfmt.FmtProtoDelim))
resp, err := http.DefaultClient.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode != 202 {
body, _ := ioutil.ReadAll(resp.Body) // Ignore any further error as this is for an error message only.
return fmt.Errorf("unexpected status code %d while pushing to %s: %s", resp.StatusCode, pushURL, body)
}
return nil
}
// Collectors works like FromGatherer, but it does not use a Gatherer. Instead,
// it collects from the provided collectors directly. It is a convenient way to
// push only a few metrics.
func Collectors(job string, grouping map[string]string, url string, collectors ...prometheus.Collector) error {
return pushCollectors(job, grouping, url, "PUT", collectors...)
}
// AddCollectors works like AddFromGatherer, but it does not use a Gatherer.
// Instead, it collects from the provided collectors directly. It is a
// convenient way to push only a few metrics.
func AddCollectors(job string, grouping map[string]string, url string, collectors ...prometheus.Collector) error {
return pushCollectors(job, grouping, url, "POST", collectors...)
}
func pushCollectors(job string, grouping map[string]string, url, method string, collectors ...prometheus.Collector) error {
r := prometheus.NewRegistry()
for _, collector := range collectors {
if err := r.Register(collector); err != nil {
return err
}
}
return push(job, grouping, url, r, method)
}
// HostnameGroupingKey returns a label map with the only entry
// {instance="<hostname>"}. This can be conveniently used as the grouping
// parameter if metrics should be pushed with the hostname as label. The
// returned map is created upon each call so that the caller is free to add more
// labels to the map.
func HostnameGroupingKey() map[string]string {
hostname, err := os.Hostname()
if err != nil {
return map[string]string{"instance": "unknown"}
}
return map[string]string{"instance": hostname}
}

176
vendor/github.com/prometheus/client_golang/prometheus/push/push_test.go generated vendored
View File

@ -1,176 +0,0 @@
// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Copyright (c) 2013, The Prometheus Authors
// All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be found
// in the LICENSE file.
package push
import (
"bytes"
"io/ioutil"
"net/http"
"net/http/httptest"
"os"
"testing"
"github.com/prometheus/common/expfmt"
"github.com/prometheus/client_golang/prometheus"
)
func TestPush(t *testing.T) {
var (
lastMethod string
lastBody []byte
lastPath string
)
host, err := os.Hostname()
if err != nil {
t.Error(err)
}
// Fake a Pushgateway that always responds with 202.
pgwOK := httptest.NewServer(
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
lastMethod = r.Method
var err error
lastBody, err = ioutil.ReadAll(r.Body)
if err != nil {
t.Fatal(err)
}
lastPath = r.URL.EscapedPath()
w.Header().Set("Content-Type", `text/plain; charset=utf-8`)
w.WriteHeader(http.StatusAccepted)
}),
)
defer pgwOK.Close()
// Fake a Pushgateway that always responds with 500.
pgwErr := httptest.NewServer(
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
http.Error(w, "fake error", http.StatusInternalServerError)
}),
)
defer pgwErr.Close()
metric1 := prometheus.NewCounter(prometheus.CounterOpts{
Name: "testname1",
Help: "testhelp1",
})
metric2 := prometheus.NewGauge(prometheus.GaugeOpts{
Name: "testname2",
Help: "testhelp2",
ConstLabels: prometheus.Labels{"foo": "bar", "dings": "bums"},
})
reg := prometheus.NewRegistry()
reg.MustRegister(metric1)
reg.MustRegister(metric2)
mfs, err := reg.Gather()
if err != nil {
t.Fatal(err)
}
buf := &bytes.Buffer{}
enc := expfmt.NewEncoder(buf, expfmt.FmtProtoDelim)
for _, mf := range mfs {
if err := enc.Encode(mf); err != nil {
t.Fatal(err)
}
}
wantBody := buf.Bytes()
// PushCollectors, all good.
if err := Collectors("testjob", HostnameGroupingKey(), pgwOK.URL, metric1, metric2); err != nil {
t.Fatal(err)
}
if lastMethod != "PUT" {
t.Error("want method PUT for PushCollectors, got", lastMethod)
}
if bytes.Compare(lastBody, wantBody) != 0 {
t.Errorf("got body %v, want %v", lastBody, wantBody)
}
if lastPath != "/metrics/job/testjob/instance/"+host {
t.Error("unexpected path:", lastPath)
}
// PushAddCollectors, with nil grouping, all good.
if err := AddCollectors("testjob", nil, pgwOK.URL, metric1, metric2); err != nil {
t.Fatal(err)
}
if lastMethod != "POST" {
t.Error("want method POST for PushAddCollectors, got", lastMethod)
}
if bytes.Compare(lastBody, wantBody) != 0 {
t.Errorf("got body %v, want %v", lastBody, wantBody)
}
if lastPath != "/metrics/job/testjob" {
t.Error("unexpected path:", lastPath)
}
// PushCollectors with a broken PGW.
if err := Collectors("testjob", nil, pgwErr.URL, metric1, metric2); err == nil {
t.Error("push to broken Pushgateway succeeded")
} else {
if got, want := err.Error(), "unexpected status code 500 while pushing to "+pgwErr.URL+"/metrics/job/testjob: fake error\n"; got != want {
t.Errorf("got error %q, want %q", got, want)
}
}
// PushCollectors with invalid grouping or job.
if err := Collectors("testjob", map[string]string{"foo": "bums"}, pgwErr.URL, metric1, metric2); err == nil {
t.Error("push with grouping contained in metrics succeeded")
}
if err := Collectors("test/job", nil, pgwErr.URL, metric1, metric2); err == nil {
t.Error("push with invalid job value succeeded")
}
if err := Collectors("testjob", map[string]string{"foo/bar": "bums"}, pgwErr.URL, metric1, metric2); err == nil {
t.Error("push with invalid grouping succeeded")
}
if err := Collectors("testjob", map[string]string{"foo-bar": "bums"}, pgwErr.URL, metric1, metric2); err == nil {
t.Error("push with invalid grouping succeeded")
}
// Push registry, all good.
if err := FromGatherer("testjob", HostnameGroupingKey(), pgwOK.URL, reg); err != nil {
t.Fatal(err)
}
if lastMethod != "PUT" {
t.Error("want method PUT for Push, got", lastMethod)
}
if bytes.Compare(lastBody, wantBody) != 0 {
t.Errorf("got body %v, want %v", lastBody, wantBody)
}
// PushAdd registry, all good.
if err := AddFromGatherer("testjob", map[string]string{"a": "x", "b": "y"}, pgwOK.URL, reg); err != nil {
t.Fatal(err)
}
if lastMethod != "POST" {
t.Error("want method POSTT for PushAdd, got", lastMethod)
}
if bytes.Compare(lastBody, wantBody) != 0 {
t.Errorf("got body %v, want %v", lastBody, wantBody)
}
if lastPath != "/metrics/job/testjob/a/x/b/y" && lastPath != "/metrics/job/testjob/b/y/a/x" {
t.Error("unexpected path:", lastPath)
}
}

7
vendor/github.com/prometheus/client_golang/prometheus/registry.go generated vendored
View File

@ -20,6 +20,7 @@ import (
"os"
"sort"
"sync"
"unicode/utf8"
"github.com/golang/protobuf/proto"
@ -679,6 +680,12 @@ func checkMetricConsistency(
)
}
for _, labelPair := range dtoMetric.GetLabel() {
if !utf8.ValidString(*labelPair.Value) {
return fmt.Errorf("collected metric's label %s is not utf8: %#v", *labelPair.Name, *labelPair.Value)
}
}
// Is the metric unique (i.e. no other metric with the same name and the same label values)?
h := hashNew()
h = hashAdd(h, metricFamily.GetName())

546
vendor/github.com/prometheus/client_golang/prometheus/registry_test.go generated vendored
View File

@ -1,546 +0,0 @@
// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Copyright (c) 2013, The Prometheus Authors
// All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be found
// in the LICENSE file.
package prometheus_test
import (
"bytes"
"net/http"
"net/http/httptest"
"testing"
dto "github.com/prometheus/client_model/go"
"github.com/golang/protobuf/proto"
"github.com/prometheus/common/expfmt"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
func testHandler(t testing.TB) {
metricVec := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "name",
Help: "docstring",
ConstLabels: prometheus.Labels{"constname": "constvalue"},
},
[]string{"labelname"},
)
metricVec.WithLabelValues("val1").Inc()
metricVec.WithLabelValues("val2").Inc()
externalMetricFamily := &dto.MetricFamily{
Name: proto.String("externalname"),
Help: proto.String("externaldocstring"),
Type: dto.MetricType_COUNTER.Enum(),
Metric: []*dto.Metric{
{
Label: []*dto.LabelPair{
{
Name: proto.String("externalconstname"),
Value: proto.String("externalconstvalue"),
},
{
Name: proto.String("externallabelname"),
Value: proto.String("externalval1"),
},
},
Counter: &dto.Counter{
Value: proto.Float64(1),
},
},
},
}
externalBuf := &bytes.Buffer{}
enc := expfmt.NewEncoder(externalBuf, expfmt.FmtProtoDelim)
if err := enc.Encode(externalMetricFamily); err != nil {
t.Fatal(err)
}
externalMetricFamilyAsBytes := externalBuf.Bytes()
externalMetricFamilyAsText := []byte(`# HELP externalname externaldocstring
# TYPE externalname counter
externalname{externalconstname="externalconstvalue",externallabelname="externalval1"} 1
`)
externalMetricFamilyAsProtoText := []byte(`name: "externalname"
help: "externaldocstring"
type: COUNTER
metric: <
label: <
name: "externalconstname"
value: "externalconstvalue"
>
label: <
name: "externallabelname"
value: "externalval1"
>
counter: <
value: 1
>
>
`)
externalMetricFamilyAsProtoCompactText := []byte(`name:"externalname" help:"externaldocstring" type:COUNTER metric:<label:<name:"externalconstname" value:"externalconstvalue" > label:<name:"externallabelname" value:"externalval1" > counter:<value:1 > >
`)
expectedMetricFamily := &dto.MetricFamily{
Name: proto.String("name"),
Help: proto.String("docstring"),
Type: dto.MetricType_COUNTER.Enum(),
Metric: []*dto.Metric{
{
Label: []*dto.LabelPair{
{
Name: proto.String("constname"),
Value: proto.String("constvalue"),
},
{
Name: proto.String("labelname"),
Value: proto.String("val1"),
},
},
Counter: &dto.Counter{
Value: proto.Float64(1),
},
},
{
Label: []*dto.LabelPair{
{
Name: proto.String("constname"),
Value: proto.String("constvalue"),
},
{
Name: proto.String("labelname"),
Value: proto.String("val2"),
},
},
Counter: &dto.Counter{
Value: proto.Float64(1),
},
},
},
}
buf := &bytes.Buffer{}
enc = expfmt.NewEncoder(buf, expfmt.FmtProtoDelim)
if err := enc.Encode(expectedMetricFamily); err != nil {
t.Fatal(err)
}
expectedMetricFamilyAsBytes := buf.Bytes()
expectedMetricFamilyAsText := []byte(`# HELP name docstring
# TYPE name counter
name{constname="constvalue",labelname="val1"} 1
name{constname="constvalue",labelname="val2"} 1
`)
expectedMetricFamilyAsProtoText := []byte(`name: "name"
help: "docstring"
type: COUNTER
metric: <
label: <
name: "constname"
value: "constvalue"
>
label: <
name: "labelname"
value: "val1"
>
counter: <
value: 1
>
>
metric: <
label: <
name: "constname"
value: "constvalue"
>
label: <
name: "labelname"
value: "val2"
>
counter: <
value: 1
>
>
`)
expectedMetricFamilyAsProtoCompactText := []byte(`name:"name" help:"docstring" type:COUNTER metric:<label:<name:"constname" value:"constvalue" > label:<name:"labelname" value:"val1" > counter:<value:1 > > metric:<label:<name:"constname" value:"constvalue" > label:<name:"labelname" value:"val2" > counter:<value:1 > >
`)
externalMetricFamilyWithSameName := &dto.MetricFamily{
Name: proto.String("name"),
Help: proto.String("docstring"),
Type: dto.MetricType_COUNTER.Enum(),
Metric: []*dto.Metric{
{
Label: []*dto.LabelPair{
{
Name: proto.String("constname"),
Value: proto.String("constvalue"),
},
{
Name: proto.String("labelname"),
Value: proto.String("different_val"),
},
},
Counter: &dto.Counter{
Value: proto.Float64(42),
},
},
},
}
expectedMetricFamilyMergedWithExternalAsProtoCompactText := []byte(`name:"name" help:"docstring" type:COUNTER metric:<label:<name:"constname" value:"constvalue" > label:<name:"labelname" value:"different_val" > counter:<value:42 > > metric:<label:<name:"constname" value:"constvalue" > label:<name:"labelname" value:"val1" > counter:<value:1 > > metric:<label:<name:"constname" value:"constvalue" > label:<name:"labelname" value:"val2" > counter:<value:1 > >
`)
type output struct {
headers map[string]string
body []byte
}
var scenarios = []struct {
headers map[string]string
out output
collector prometheus.Collector
externalMF []*dto.MetricFamily
}{
{ // 0
headers: map[string]string{
"Accept": "foo/bar;q=0.2, dings/bums;q=0.8",
},
out: output{
headers: map[string]string{
"Content-Type": `text/plain; version=0.0.4`,
},
body: []byte{},
},
},
{ // 1
headers: map[string]string{
"Accept": "foo/bar;q=0.2, application/quark;q=0.8",
},
out: output{
headers: map[string]string{
"Content-Type": `text/plain; version=0.0.4`,
},
body: []byte{},
},
},
{ // 2
headers: map[string]string{
"Accept": "foo/bar;q=0.2, application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=bla;q=0.8",
},
out: output{
headers: map[string]string{
"Content-Type": `text/plain; version=0.0.4`,
},
body: []byte{},
},
},
{ // 3
headers: map[string]string{
"Accept": "text/plain;q=0.2, application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=delimited;q=0.8",
},
out: output{
headers: map[string]string{
"Content-Type": `application/vnd.google.protobuf; proto=io.prometheus.client.MetricFamily; encoding=delimited`,
},
body: []byte{},
},
},
{ // 4
headers: map[string]string{
"Accept": "application/json",
},
out: output{
headers: map[string]string{
"Content-Type": `text/plain; version=0.0.4`,
},
body: expectedMetricFamilyAsText,
},
collector: metricVec,
},
{ // 5
headers: map[string]string{
"Accept": "application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=delimited",
},
out: output{
headers: map[string]string{
"Content-Type": `application/vnd.google.protobuf; proto=io.prometheus.client.MetricFamily; encoding=delimited`,
},
body: expectedMetricFamilyAsBytes,
},
collector: metricVec,
},
{ // 6
headers: map[string]string{
"Accept": "application/json",
},
out: output{
headers: map[string]string{
"Content-Type": `text/plain; version=0.0.4`,
},
body: externalMetricFamilyAsText,
},
externalMF: []*dto.MetricFamily{externalMetricFamily},
},
{ // 7
headers: map[string]string{
"Accept": "application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=delimited",
},
out: output{
headers: map[string]string{
"Content-Type": `application/vnd.google.protobuf; proto=io.prometheus.client.MetricFamily; encoding=delimited`,
},
body: externalMetricFamilyAsBytes,
},
externalMF: []*dto.MetricFamily{externalMetricFamily},
},
{ // 8
headers: map[string]string{
"Accept": "application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=delimited",
},
out: output{
headers: map[string]string{
"Content-Type": `application/vnd.google.protobuf; proto=io.prometheus.client.MetricFamily; encoding=delimited`,
},
body: bytes.Join(
[][]byte{
externalMetricFamilyAsBytes,
expectedMetricFamilyAsBytes,
},
[]byte{},
),
},
collector: metricVec,
externalMF: []*dto.MetricFamily{externalMetricFamily},
},
{ // 9
headers: map[string]string{
"Accept": "text/plain",
},
out: output{
headers: map[string]string{
"Content-Type": `text/plain; version=0.0.4`,
},
body: []byte{},
},
},
{ // 10
headers: map[string]string{
"Accept": "application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=bla;q=0.2, text/plain;q=0.5",
},
out: output{
headers: map[string]string{
"Content-Type": `text/plain; version=0.0.4`,
},
body: expectedMetricFamilyAsText,
},
collector: metricVec,
},
{ // 11
headers: map[string]string{
"Accept": "application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=bla;q=0.2, text/plain;q=0.5;version=0.0.4",
},
out: output{
headers: map[string]string{
"Content-Type": `text/plain; version=0.0.4`,
},
body: bytes.Join(
[][]byte{
externalMetricFamilyAsText,
expectedMetricFamilyAsText,
},
[]byte{},
),
},
collector: metricVec,
externalMF: []*dto.MetricFamily{externalMetricFamily},
},
{ // 12
headers: map[string]string{
"Accept": "application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=delimited;q=0.2, text/plain;q=0.5;version=0.0.2",
},
out: output{
headers: map[string]string{
"Content-Type": `application/vnd.google.protobuf; proto=io.prometheus.client.MetricFamily; encoding=delimited`,
},
body: bytes.Join(
[][]byte{
externalMetricFamilyAsBytes,
expectedMetricFamilyAsBytes,
},
[]byte{},
),
},
collector: metricVec,
externalMF: []*dto.MetricFamily{externalMetricFamily},
},
{ // 13
headers: map[string]string{
"Accept": "application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=text;q=0.5, application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=delimited;q=0.4",
},
out: output{
headers: map[string]string{
"Content-Type": `application/vnd.google.protobuf; proto=io.prometheus.client.MetricFamily; encoding=text`,
},
body: bytes.Join(
[][]byte{
externalMetricFamilyAsProtoText,
expectedMetricFamilyAsProtoText,
},
[]byte{},
),
},
collector: metricVec,
externalMF: []*dto.MetricFamily{externalMetricFamily},
},
{ // 14
headers: map[string]string{
"Accept": "application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=compact-text",
},
out: output{
headers: map[string]string{
"Content-Type": `application/vnd.google.protobuf; proto=io.prometheus.client.MetricFamily; encoding=compact-text`,
},
body: bytes.Join(
[][]byte{
externalMetricFamilyAsProtoCompactText,
expectedMetricFamilyAsProtoCompactText,
},
[]byte{},
),
},
collector: metricVec,
externalMF: []*dto.MetricFamily{externalMetricFamily},
},
{ // 15
headers: map[string]string{
"Accept": "application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=compact-text",
},
out: output{
headers: map[string]string{
"Content-Type": `application/vnd.google.protobuf; proto=io.prometheus.client.MetricFamily; encoding=compact-text`,
},
body: bytes.Join(
[][]byte{
externalMetricFamilyAsProtoCompactText,
expectedMetricFamilyMergedWithExternalAsProtoCompactText,
},
[]byte{},
),
},
collector: metricVec,
externalMF: []*dto.MetricFamily{
externalMetricFamily,
externalMetricFamilyWithSameName,
},
},
}
for i, scenario := range scenarios {
registry := prometheus.NewPedanticRegistry()
gatherer := prometheus.Gatherer(registry)
if scenario.externalMF != nil {
gatherer = prometheus.Gatherers{
registry,
prometheus.GathererFunc(func() ([]*dto.MetricFamily, error) {
return scenario.externalMF, nil
}),
}
}
if scenario.collector != nil {
registry.Register(scenario.collector)
}
writer := httptest.NewRecorder()
handler := prometheus.InstrumentHandler("prometheus", promhttp.HandlerFor(gatherer, promhttp.HandlerOpts{}))
request, _ := http.NewRequest("GET", "/", nil)
for key, value := range scenario.headers {
request.Header.Add(key, value)
}
handler(writer, request)
for key, value := range scenario.out.headers {
if writer.HeaderMap.Get(key) != value {
t.Errorf(
"%d. expected %q for header %q, got %q",
i, value, key, writer.Header().Get(key),
)
}
}
if !bytes.Equal(scenario.out.body, writer.Body.Bytes()) {
t.Errorf(
"%d. expected body:\n%s\ngot body:\n%s\n",
i, scenario.out.body, writer.Body.Bytes(),
)
}
}
}
func TestHandler(t *testing.T) {
testHandler(t)
}
func BenchmarkHandler(b *testing.B) {
for i := 0; i < b.N; i++ {
testHandler(b)
}
}
func TestRegisterWithOrGet(t *testing.T) {
// Replace the default registerer just to be sure. This is bad, but this
// whole test will go away once RegisterOrGet is removed.
oldRegisterer := prometheus.DefaultRegisterer
defer func() {
prometheus.DefaultRegisterer = oldRegisterer
}()
prometheus.DefaultRegisterer = prometheus.NewRegistry()
original := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "test",
Help: "help",
},
[]string{"foo", "bar"},
)
equalButNotSame := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "test",
Help: "help",
},
[]string{"foo", "bar"},
)
var err error
if err = prometheus.Register(original); err != nil {
t.Fatal(err)
}
if err = prometheus.Register(equalButNotSame); err == nil {
t.Fatal("expected error when registringe equal collector")
}
if are, ok := err.(prometheus.AlreadyRegisteredError); ok {
if are.ExistingCollector != original {
t.Error("expected original collector but got something else")
}
if are.ExistingCollector == equalButNotSame {
t.Error("expected original callector but got new one")
}
} else {
t.Error("unexpected error:", err)
}
}

4
vendor/github.com/prometheus/client_golang/prometheus/summary.go generated vendored
View File

@ -543,8 +543,8 @@ func NewConstSummary(
quantiles map[float64]float64,
labelValues ...string,
) (Metric, error) {
if len(desc.variableLabels) != len(labelValues) {
return nil, errInconsistentCardinality
if err := validateLabelValues(labelValues, len(desc.variableLabels)); err != nil {
return nil, err
}
return &constSummary{
desc: desc,

388
vendor/github.com/prometheus/client_golang/prometheus/summary_test.go generated vendored
View File

@ -1,388 +0,0 @@
// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus
import (
"math"
"math/rand"
"sort"
"sync"
"testing"
"testing/quick"
"time"
dto "github.com/prometheus/client_model/go"
)
func TestSummaryWithDefaultObjectives(t *testing.T) {
reg := NewRegistry()
summaryWithDefaultObjectives := NewSummary(SummaryOpts{
Name: "default_objectives",
Help: "Test help.",
})
if err := reg.Register(summaryWithDefaultObjectives); err != nil {
t.Error(err)
}
m := &dto.Metric{}
if err := summaryWithDefaultObjectives.Write(m); err != nil {
t.Error(err)
}
if len(m.GetSummary().Quantile) != len(DefObjectives) {
t.Error("expected default objectives in summary")
}
}
func TestSummaryWithoutObjectives(t *testing.T) {
reg := NewRegistry()
summaryWithEmptyObjectives := NewSummary(SummaryOpts{
Name: "empty_objectives",
Help: "Test help.",
Objectives: map[float64]float64{},
})
if err := reg.Register(summaryWithEmptyObjectives); err != nil {
t.Error(err)
}
m := &dto.Metric{}
if err := summaryWithEmptyObjectives.Write(m); err != nil {
t.Error(err)
}
if len(m.GetSummary().Quantile) != 0 {
t.Error("expected no objectives in summary")
}
}
func benchmarkSummaryObserve(w int, b *testing.B) {
b.StopTimer()
wg := new(sync.WaitGroup)
wg.Add(w)
g := new(sync.WaitGroup)
g.Add(1)
s := NewSummary(SummaryOpts{})
for i := 0; i < w; i++ {
go func() {
g.Wait()
for i := 0; i < b.N; i++ {
s.Observe(float64(i))
}
wg.Done()
}()
}
b.StartTimer()
g.Done()
wg.Wait()
}
func BenchmarkSummaryObserve1(b *testing.B) {
benchmarkSummaryObserve(1, b)
}
func BenchmarkSummaryObserve2(b *testing.B) {
benchmarkSummaryObserve(2, b)
}
func BenchmarkSummaryObserve4(b *testing.B) {
benchmarkSummaryObserve(4, b)
}
func BenchmarkSummaryObserve8(b *testing.B) {
benchmarkSummaryObserve(8, b)
}
func benchmarkSummaryWrite(w int, b *testing.B) {
b.StopTimer()
wg := new(sync.WaitGroup)
wg.Add(w)
g := new(sync.WaitGroup)
g.Add(1)
s := NewSummary(SummaryOpts{})
for i := 0; i < 1000000; i++ {
s.Observe(float64(i))
}
for j := 0; j < w; j++ {
outs := make([]dto.Metric, b.N)
go func(o []dto.Metric) {
g.Wait()
for i := 0; i < b.N; i++ {
s.Write(&o[i])
}
wg.Done()
}(outs)
}
b.StartTimer()
g.Done()
wg.Wait()
}
func BenchmarkSummaryWrite1(b *testing.B) {
benchmarkSummaryWrite(1, b)
}
func BenchmarkSummaryWrite2(b *testing.B) {
benchmarkSummaryWrite(2, b)
}
func BenchmarkSummaryWrite4(b *testing.B) {
benchmarkSummaryWrite(4, b)
}
func BenchmarkSummaryWrite8(b *testing.B) {
benchmarkSummaryWrite(8, b)
}
func TestSummaryConcurrency(t *testing.T) {
if testing.Short() {
t.Skip("Skipping test in short mode.")
}
rand.Seed(42)
it := func(n uint32) bool {
mutations := int(n%1e4 + 1e4)
concLevel := int(n%5 + 1)
total := mutations * concLevel
var start, end sync.WaitGroup
start.Add(1)
end.Add(concLevel)
sum := NewSummary(SummaryOpts{
Name: "test_summary",
Help: "helpless",
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
})
allVars := make([]float64, total)
var sampleSum float64
for i := 0; i < concLevel; i++ {
vals := make([]float64, mutations)
for j := 0; j < mutations; j++ {
v := rand.NormFloat64()
vals[j] = v
allVars[i*mutations+j] = v
sampleSum += v
}
go func(vals []float64) {
start.Wait()
for _, v := range vals {
sum.Observe(v)
}
end.Done()
}(vals)
}
sort.Float64s(allVars)
start.Done()
end.Wait()
m := &dto.Metric{}
sum.Write(m)
if got, want := int(*m.Summary.SampleCount), total; got != want {
t.Errorf("got sample count %d, want %d", got, want)
}
if got, want := *m.Summary.SampleSum, sampleSum; math.Abs((got-want)/want) > 0.001 {
t.Errorf("got sample sum %f, want %f", got, want)
}
objectives := make([]float64, 0, len(DefObjectives))
for qu := range DefObjectives {
objectives = append(objectives, qu)
}
sort.Float64s(objectives)
for i, wantQ := range objectives {
ε := DefObjectives[wantQ]
gotQ := *m.Summary.Quantile[i].Quantile
gotV := *m.Summary.Quantile[i].Value
min, max := getBounds(allVars, wantQ, ε)
if gotQ != wantQ {
t.Errorf("got quantile %f, want %f", gotQ, wantQ)
}
if gotV < min || gotV > max {
t.Errorf("got %f for quantile %f, want [%f,%f]", gotV, gotQ, min, max)
}
}
return true
}
if err := quick.Check(it, nil); err != nil {
t.Error(err)
}
}
func TestSummaryVecConcurrency(t *testing.T) {
if testing.Short() {
t.Skip("Skipping test in short mode.")
}
rand.Seed(42)
objectives := make([]float64, 0, len(DefObjectives))
for qu := range DefObjectives {
objectives = append(objectives, qu)
}
sort.Float64s(objectives)
it := func(n uint32) bool {
mutations := int(n%1e4 + 1e4)
concLevel := int(n%7 + 1)
vecLength := int(n%3 + 1)
var start, end sync.WaitGroup
start.Add(1)
end.Add(concLevel)
sum := NewSummaryVec(
SummaryOpts{
Name: "test_summary",
Help: "helpless",
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
},
[]string{"label"},
)
allVars := make([][]float64, vecLength)
sampleSums := make([]float64, vecLength)
for i := 0; i < concLevel; i++ {
vals := make([]float64, mutations)
picks := make([]int, mutations)
for j := 0; j < mutations; j++ {
v := rand.NormFloat64()
vals[j] = v
pick := rand.Intn(vecLength)
picks[j] = pick
allVars[pick] = append(allVars[pick], v)
sampleSums[pick] += v
}
go func(vals []float64) {
start.Wait()
for i, v := range vals {
sum.WithLabelValues(string('A' + picks[i])).Observe(v)
}
end.Done()
}(vals)
}
for _, vars := range allVars {
sort.Float64s(vars)
}
start.Done()
end.Wait()
for i := 0; i < vecLength; i++ {
m := &dto.Metric{}
s := sum.WithLabelValues(string('A' + i))
s.(Summary).Write(m)
if got, want := int(*m.Summary.SampleCount), len(allVars[i]); got != want {
t.Errorf("got sample count %d for label %c, want %d", got, 'A'+i, want)
}
if got, want := *m.Summary.SampleSum, sampleSums[i]; math.Abs((got-want)/want) > 0.001 {
t.Errorf("got sample sum %f for label %c, want %f", got, 'A'+i, want)
}
for j, wantQ := range objectives {
ε := DefObjectives[wantQ]
gotQ := *m.Summary.Quantile[j].Quantile
gotV := *m.Summary.Quantile[j].Value
min, max := getBounds(allVars[i], wantQ, ε)
if gotQ != wantQ {
t.Errorf("got quantile %f for label %c, want %f", gotQ, 'A'+i, wantQ)
}
if gotV < min || gotV > max {
t.Errorf("got %f for quantile %f for label %c, want [%f,%f]", gotV, gotQ, 'A'+i, min, max)
}
}
}
return true
}
if err := quick.Check(it, nil); err != nil {
t.Error(err)
}
}
func TestSummaryDecay(t *testing.T) {
if testing.Short() {
t.Skip("Skipping test in short mode.")
// More because it depends on timing than because it is particularly long...
}
sum := NewSummary(SummaryOpts{
Name: "test_summary",
Help: "helpless",
MaxAge: 100 * time.Millisecond,
Objectives: map[float64]float64{0.1: 0.001},
AgeBuckets: 10,
})
m := &dto.Metric{}
i := 0
tick := time.NewTicker(time.Millisecond)
for range tick.C {
i++
sum.Observe(float64(i))
if i%10 == 0 {
sum.Write(m)
if got, want := *m.Summary.Quantile[0].Value, math.Max(float64(i)/10, float64(i-90)); math.Abs(got-want) > 20 {
t.Errorf("%d. got %f, want %f", i, got, want)
}
m.Reset()
}
if i >= 1000 {
break
}
}
tick.Stop()
// Wait for MaxAge without observations and make sure quantiles are NaN.
time.Sleep(100 * time.Millisecond)
sum.Write(m)
if got := *m.Summary.Quantile[0].Value; !math.IsNaN(got) {
t.Errorf("got %f, want NaN after expiration", got)
}
}
func getBounds(vars []float64, q, ε float64) (min, max float64) {
// TODO(beorn7): This currently tolerates an error of up to 2*ε. The
// error must be at most ε, but for some reason, it's sometimes slightly
// higher. That's a bug.
n := float64(len(vars))
lower := int((q - 2*ε) * n)
upper := int(math.Ceil((q + 2*ε) * n))
min = vars[0]
if lower > 1 {
min = vars[lower-1]
}
max = vars[len(vars)-1]
if upper < len(vars) {
max = vars[upper-1]
}
return
}

152
vendor/github.com/prometheus/client_golang/prometheus/timer_test.go generated vendored
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@ -1,152 +0,0 @@
// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus
import (
"testing"
dto "github.com/prometheus/client_model/go"
)
func TestTimerObserve(t *testing.T) {
var (
his = NewHistogram(HistogramOpts{Name: "test_histogram"})
sum = NewSummary(SummaryOpts{Name: "test_summary"})
gauge = NewGauge(GaugeOpts{Name: "test_gauge"})
)
func() {
hisTimer := NewTimer(his)
sumTimer := NewTimer(sum)
gaugeTimer := NewTimer(ObserverFunc(gauge.Set))
defer hisTimer.ObserveDuration()
defer sumTimer.ObserveDuration()
defer gaugeTimer.ObserveDuration()
}()
m := &dto.Metric{}
his.Write(m)
if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for histogram, got %d", want, got)
}
m.Reset()
sum.Write(m)
if want, got := uint64(1), m.GetSummary().GetSampleCount(); want != got {
t.Errorf("want %d observations for summary, got %d", want, got)
}
m.Reset()
gauge.Write(m)
if got := m.GetGauge().GetValue(); got <= 0 {
t.Errorf("want value > 0 for gauge, got %f", got)
}
}
func TestTimerEmpty(t *testing.T) {
emptyTimer := NewTimer(nil)
emptyTimer.ObserveDuration()
// Do nothing, just demonstrate it works without panic.
}
func TestTimerConditionalTiming(t *testing.T) {
var (
his = NewHistogram(HistogramOpts{
Name: "test_histogram",
})
timeMe = true
m = &dto.Metric{}
)
timedFunc := func() {
timer := NewTimer(ObserverFunc(func(v float64) {
if timeMe {
his.Observe(v)
}
}))
defer timer.ObserveDuration()
}
timedFunc() // This will time.
his.Write(m)
if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for histogram, got %d", want, got)
}
timeMe = false
timedFunc() // This will not time again.
m.Reset()
his.Write(m)
if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for histogram, got %d", want, got)
}
}
func TestTimerByOutcome(t *testing.T) {
var (
his = NewHistogramVec(
HistogramOpts{Name: "test_histogram"},
[]string{"outcome"},
)
outcome = "foo"
m = &dto.Metric{}
)
timedFunc := func() {
timer := NewTimer(ObserverFunc(func(v float64) {
his.WithLabelValues(outcome).Observe(v)
}))
defer timer.ObserveDuration()
if outcome == "foo" {
outcome = "bar"
return
}
outcome = "foo"
}
timedFunc()
his.WithLabelValues("foo").(Histogram).Write(m)
if want, got := uint64(0), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for 'foo' histogram, got %d", want, got)
}
m.Reset()
his.WithLabelValues("bar").(Histogram).Write(m)
if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for 'bar' histogram, got %d", want, got)
}
timedFunc()
m.Reset()
his.WithLabelValues("foo").(Histogram).Write(m)
if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for 'foo' histogram, got %d", want, got)
}
m.Reset()
his.WithLabelValues("bar").(Histogram).Write(m)
if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for 'bar' histogram, got %d", want, got)
}
timedFunc()
m.Reset()
his.WithLabelValues("foo").(Histogram).Write(m)
if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for 'foo' histogram, got %d", want, got)
}
m.Reset()
his.WithLabelValues("bar").(Histogram).Write(m)
if want, got := uint64(2), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for 'bar' histogram, got %d", want, got)
}
}

138
vendor/github.com/prometheus/client_golang/prometheus/untyped.go generated vendored
View File

@ -13,144 +13,12 @@
package prometheus
// Untyped is a Metric that represents a single numerical value that can
// arbitrarily go up and down.
//
// An Untyped metric works the same as a Gauge. The only difference is that to
// no type information is implied.
//
// To create Untyped instances, use NewUntyped.
//
// Deprecated: The Untyped type is deprecated because it doesn't make sense in
// direct instrumentation. If you need to mirror an external metric of unknown
// type (usually while writing exporters), Use MustNewConstMetric to create an
// untyped metric instance on the fly.
type Untyped interface {
Metric
Collector
// Set sets the Untyped metric to an arbitrary value.
Set(float64)
// Inc increments the Untyped metric by 1.
Inc()
// Dec decrements the Untyped metric by 1.
Dec()
// Add adds the given value to the Untyped metric. (The value can be
// negative, resulting in a decrease.)
Add(float64)
// Sub subtracts the given value from the Untyped metric. (The value can
// be negative, resulting in an increase.)
Sub(float64)
}
// UntypedOpts is an alias for Opts. See there for doc comments.
type UntypedOpts Opts
// NewUntyped creates a new Untyped metric from the provided UntypedOpts.
func NewUntyped(opts UntypedOpts) Untyped {
return newValue(NewDesc(
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
opts.Help,
nil,
opts.ConstLabels,
), UntypedValue, 0)
}
// UntypedVec is a Collector that bundles a set of Untyped metrics that all
// share the same Desc, but have different values for their variable
// labels. This is used if you want to count the same thing partitioned by
// various dimensions. Create instances with NewUntypedVec.
//
// Deprecated: UntypedVec is deprecated for the same reasons as Untyped.
type UntypedVec struct {
*metricVec
}
// NewUntypedVec creates a new UntypedVec based on the provided UntypedOpts and
// partitioned by the given label names.
func NewUntypedVec(opts UntypedOpts, labelNames []string) *UntypedVec {
desc := NewDesc(
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
opts.Help,
labelNames,
opts.ConstLabels,
)
return &UntypedVec{
metricVec: newMetricVec(desc, func(lvs ...string) Metric {
return newValue(desc, UntypedValue, 0, lvs...)
}),
}
}
// GetMetricWithLabelValues returns the Untyped for the given slice of label
// values (same order as the VariableLabels in Desc). If that combination of
// label values is accessed for the first time, a new Untyped is created.
//
// It is possible to call this method without using the returned Untyped to only
// create the new Untyped but leave it at its starting value 0. See also the
// SummaryVec example.
//
// Keeping the Untyped for later use is possible (and should be considered if
// performance is critical), but keep in mind that Reset, DeleteLabelValues and
// Delete can be used to delete the Untyped from the UntypedVec. In that case, the
// Untyped will still exist, but it will not be exported anymore, even if a
// Untyped with the same label values is created later. See also the CounterVec
// example.
//
// An error is returned if the number of label values is not the same as the
// number of VariableLabels in Desc.
//
// Note that for more than one label value, this method is prone to mistakes
// caused by an incorrect order of arguments. Consider GetMetricWith(Labels) as
// an alternative to avoid that type of mistake. For higher label numbers, the
// latter has a much more readable (albeit more verbose) syntax, but it comes
// with a performance overhead (for creating and processing the Labels map).
// See also the GaugeVec example.
func (m *UntypedVec) GetMetricWithLabelValues(lvs ...string) (Untyped, error) {
metric, err := m.metricVec.getMetricWithLabelValues(lvs...)
if metric != nil {
return metric.(Untyped), err
}
return nil, err
}
// GetMetricWith returns the Untyped for the given Labels map (the label names
// must match those of the VariableLabels in Desc). If that label map is
// accessed for the first time, a new Untyped is created. Implications of
// creating a Untyped without using it and keeping the Untyped for later use are
// the same as for GetMetricWithLabelValues.
//
// An error is returned if the number and names of the Labels are inconsistent
// with those of the VariableLabels in Desc.
//
// This method is used for the same purpose as
// GetMetricWithLabelValues(...string). See there for pros and cons of the two
// methods.
func (m *UntypedVec) GetMetricWith(labels Labels) (Untyped, error) {
metric, err := m.metricVec.getMetricWith(labels)
if metric != nil {
return metric.(Untyped), err
}
return nil, err
}
// WithLabelValues works as GetMetricWithLabelValues, but panics where
// GetMetricWithLabelValues would have returned an error. By not returning an
// error, WithLabelValues allows shortcuts like
// myVec.WithLabelValues("404", "GET").Add(42)
func (m *UntypedVec) WithLabelValues(lvs ...string) Untyped {
return m.metricVec.withLabelValues(lvs...).(Untyped)
}
// With works as GetMetricWith, but panics where GetMetricWithLabels would have
// returned an error. By not returning an error, With allows shortcuts like
// myVec.With(Labels{"code": "404", "method": "GET"}).Add(42)
func (m *UntypedVec) With(labels Labels) Untyped {
return m.metricVec.with(labels).(Untyped)
}
// UntypedFunc is an Untyped whose value is determined at collect time by
// calling a provided function.
// UntypedFunc works like GaugeFunc but the collected metric is of type
// "Untyped". UntypedFunc is useful to mirror an external metric of unknown
// type.
//
// To create UntypedFunc instances, use NewUntypedFunc.
type UntypedFunc interface {

7
vendor/github.com/prometheus/client_golang/prometheus/value.go generated vendored
View File

@ -14,7 +14,6 @@
package prometheus
import (
"errors"
"fmt"
"math"
"sort"
@ -37,8 +36,6 @@ const (
UntypedValue
)
var errInconsistentCardinality = errors.New("inconsistent label cardinality")
// value is a generic metric for simple values. It implements Metric, Collector,
// Counter, Gauge, and Untyped. Its effective type is determined by
// ValueType. This is a low-level building block used by the library to back the
@ -158,8 +155,8 @@ func (v *valueFunc) Write(out *dto.Metric) error {
// the Collect method. NewConstMetric returns an error if the length of
// labelValues is not consistent with the variable labels in Desc.
func NewConstMetric(desc *Desc, valueType ValueType, value float64, labelValues ...string) (Metric, error) {
if len(desc.variableLabels) != len(labelValues) {
return nil, errInconsistentCardinality
if err := validateLabelValues(labelValues, len(desc.variableLabels)); err != nil {
return nil, err
}
return &constMetric{
desc: desc,

10
vendor/github.com/prometheus/client_golang/prometheus/vec.go generated vendored
View File

@ -207,9 +207,10 @@ func (m *metricVec) Reset() {
}
func (m *metricVec) hashLabelValues(vals []string) (uint64, error) {
if len(vals) != len(m.desc.variableLabels) {
return 0, errInconsistentCardinality
if err := validateLabelValues(vals, len(m.desc.variableLabels)); err != nil {
return 0, err
}
h := hashNew()
for _, val := range vals {
h = m.hashAdd(h, val)
@ -219,9 +220,10 @@ func (m *metricVec) hashLabelValues(vals []string) (uint64, error) {
}
func (m *metricVec) hashLabels(labels Labels) (uint64, error) {
if len(labels) != len(m.desc.variableLabels) {
return 0, errInconsistentCardinality
if err := validateValuesInLabels(labels, len(m.desc.variableLabels)); err != nil {
return 0, err
}
h := hashNew()
for _, label := range m.desc.variableLabels {
val, ok := labels[label]

312
vendor/github.com/prometheus/client_golang/prometheus/vec_test.go generated vendored
View File

@ -1,312 +0,0 @@
// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus
import (
"fmt"
"testing"
dto "github.com/prometheus/client_model/go"
)
func TestDelete(t *testing.T) {
vec := NewUntypedVec(
UntypedOpts{
Name: "test",
Help: "helpless",
},
[]string{"l1", "l2"},
)
testDelete(t, vec)
}
func TestDeleteWithCollisions(t *testing.T) {
vec := NewUntypedVec(
UntypedOpts{
Name: "test",
Help: "helpless",
},
[]string{"l1", "l2"},
)
vec.hashAdd = func(h uint64, s string) uint64 { return 1 }
vec.hashAddByte = func(h uint64, b byte) uint64 { return 1 }
testDelete(t, vec)
}
func testDelete(t *testing.T, vec *UntypedVec) {
if got, want := vec.Delete(Labels{"l1": "v1", "l2": "v2"}), false; got != want {
t.Errorf("got %v, want %v", got, want)
}
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Untyped).Set(42)
if got, want := vec.Delete(Labels{"l1": "v1", "l2": "v2"}), true; got != want {
t.Errorf("got %v, want %v", got, want)
}
if got, want := vec.Delete(Labels{"l1": "v1", "l2": "v2"}), false; got != want {
t.Errorf("got %v, want %v", got, want)
}
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Untyped).Set(42)
if got, want := vec.Delete(Labels{"l2": "v2", "l1": "v1"}), true; got != want {
t.Errorf("got %v, want %v", got, want)
}
if got, want := vec.Delete(Labels{"l2": "v2", "l1": "v1"}), false; got != want {
t.Errorf("got %v, want %v", got, want)
}
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Untyped).Set(42)
if got, want := vec.Delete(Labels{"l2": "v1", "l1": "v2"}), false; got != want {
t.Errorf("got %v, want %v", got, want)
}
if got, want := vec.Delete(Labels{"l1": "v1"}), false; got != want {
t.Errorf("got %v, want %v", got, want)
}
}
func TestDeleteLabelValues(t *testing.T) {
vec := NewUntypedVec(
UntypedOpts{
Name: "test",
Help: "helpless",
},
[]string{"l1", "l2"},
)
testDeleteLabelValues(t, vec)
}
func TestDeleteLabelValuesWithCollisions(t *testing.T) {
vec := NewUntypedVec(
UntypedOpts{
Name: "test",
Help: "helpless",
},
[]string{"l1", "l2"},
)
vec.hashAdd = func(h uint64, s string) uint64 { return 1 }
vec.hashAddByte = func(h uint64, b byte) uint64 { return 1 }
testDeleteLabelValues(t, vec)
}
func testDeleteLabelValues(t *testing.T, vec *UntypedVec) {
if got, want := vec.DeleteLabelValues("v1", "v2"), false; got != want {
t.Errorf("got %v, want %v", got, want)
}
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Untyped).Set(42)
vec.With(Labels{"l1": "v1", "l2": "v3"}).(Untyped).Set(42) // Add junk data for collision.
if got, want := vec.DeleteLabelValues("v1", "v2"), true; got != want {
t.Errorf("got %v, want %v", got, want)
}
if got, want := vec.DeleteLabelValues("v1", "v2"), false; got != want {
t.Errorf("got %v, want %v", got, want)
}
if got, want := vec.DeleteLabelValues("v1", "v3"), true; got != want {
t.Errorf("got %v, want %v", got, want)
}
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Untyped).Set(42)
// Delete out of order.
if got, want := vec.DeleteLabelValues("v2", "v1"), false; got != want {
t.Errorf("got %v, want %v", got, want)
}
if got, want := vec.DeleteLabelValues("v1"), false; got != want {
t.Errorf("got %v, want %v", got, want)
}
}
func TestMetricVec(t *testing.T) {
vec := NewUntypedVec(
UntypedOpts{
Name: "test",
Help: "helpless",
},
[]string{"l1", "l2"},
)
testMetricVec(t, vec)
}
func TestMetricVecWithCollisions(t *testing.T) {
vec := NewUntypedVec(
UntypedOpts{
Name: "test",
Help: "helpless",
},
[]string{"l1", "l2"},
)
vec.hashAdd = func(h uint64, s string) uint64 { return 1 }
vec.hashAddByte = func(h uint64, b byte) uint64 { return 1 }
testMetricVec(t, vec)
}
func testMetricVec(t *testing.T, vec *UntypedVec) {
vec.Reset() // Actually test Reset now!
var pair [2]string
// Keep track of metrics.
expected := map[[2]string]int{}
for i := 0; i < 1000; i++ {
pair[0], pair[1] = fmt.Sprint(i%4), fmt.Sprint(i%5) // Varying combinations multiples.
expected[pair]++
vec.WithLabelValues(pair[0], pair[1]).Inc()
expected[[2]string{"v1", "v2"}]++
vec.WithLabelValues("v1", "v2").(Untyped).Inc()
}
var total int
for _, metrics := range vec.children {
for _, metric := range metrics {
total++
copy(pair[:], metric.values)
var metricOut dto.Metric
if err := metric.metric.Write(&metricOut); err != nil {
t.Fatal(err)
}
actual := *metricOut.Untyped.Value
var actualPair [2]string
for i, label := range metricOut.Label {
actualPair[i] = *label.Value
}
// Test output pair against metric.values to ensure we've selected
// the right one. We check this to ensure the below check means
// anything at all.
if actualPair != pair {
t.Fatalf("unexpected pair association in metric map: %v != %v", actualPair, pair)
}
if actual != float64(expected[pair]) {
t.Fatalf("incorrect counter value for %v: %v != %v", pair, actual, expected[pair])
}
}
}
if total != len(expected) {
t.Fatalf("unexpected number of metrics: %v != %v", total, len(expected))
}
vec.Reset()
if len(vec.children) > 0 {
t.Fatalf("reset failed")
}
}
func TestCounterVecEndToEndWithCollision(t *testing.T) {
vec := NewCounterVec(
CounterOpts{
Name: "test",
Help: "helpless",
},
[]string{"labelname"},
)
vec.WithLabelValues("77kepQFQ8Kl").Inc()
vec.WithLabelValues("!0IC=VloaY").Add(2)
m := &dto.Metric{}
if err := vec.WithLabelValues("77kepQFQ8Kl").Write(m); err != nil {
t.Fatal(err)
}
if got, want := m.GetLabel()[0].GetValue(), "77kepQFQ8Kl"; got != want {
t.Errorf("got label value %q, want %q", got, want)
}
if got, want := m.GetCounter().GetValue(), 1.; got != want {
t.Errorf("got value %f, want %f", got, want)
}
m.Reset()
if err := vec.WithLabelValues("!0IC=VloaY").Write(m); err != nil {
t.Fatal(err)
}
if got, want := m.GetLabel()[0].GetValue(), "!0IC=VloaY"; got != want {
t.Errorf("got label value %q, want %q", got, want)
}
if got, want := m.GetCounter().GetValue(), 2.; got != want {
t.Errorf("got value %f, want %f", got, want)
}
}
func BenchmarkMetricVecWithLabelValuesBasic(b *testing.B) {
benchmarkMetricVecWithLabelValues(b, map[string][]string{
"l1": {"onevalue"},
"l2": {"twovalue"},
})
}
func BenchmarkMetricVecWithLabelValues2Keys10ValueCardinality(b *testing.B) {
benchmarkMetricVecWithLabelValuesCardinality(b, 2, 10)
}
func BenchmarkMetricVecWithLabelValues4Keys10ValueCardinality(b *testing.B) {
benchmarkMetricVecWithLabelValuesCardinality(b, 4, 10)
}
func BenchmarkMetricVecWithLabelValues2Keys100ValueCardinality(b *testing.B) {
benchmarkMetricVecWithLabelValuesCardinality(b, 2, 100)
}
func BenchmarkMetricVecWithLabelValues10Keys100ValueCardinality(b *testing.B) {
benchmarkMetricVecWithLabelValuesCardinality(b, 10, 100)
}
func BenchmarkMetricVecWithLabelValues10Keys1000ValueCardinality(b *testing.B) {
benchmarkMetricVecWithLabelValuesCardinality(b, 10, 1000)
}
func benchmarkMetricVecWithLabelValuesCardinality(b *testing.B, nkeys, nvalues int) {
labels := map[string][]string{}
for i := 0; i < nkeys; i++ {
var (
k = fmt.Sprintf("key-%v", i)
vs = make([]string, 0, nvalues)
)
for j := 0; j < nvalues; j++ {
vs = append(vs, fmt.Sprintf("value-%v", j))
}
labels[k] = vs
}
benchmarkMetricVecWithLabelValues(b, labels)
}
func benchmarkMetricVecWithLabelValues(b *testing.B, labels map[string][]string) {
var keys []string
for k := range labels { // Map order dependent, who cares though.
keys = append(keys, k)
}
values := make([]string, len(labels)) // Value cache for permutations.
vec := NewUntypedVec(
UntypedOpts{
Name: "test",
Help: "helpless",
},
keys,
)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
// Varies input across provide map entries based on key size.
for j, k := range keys {
candidates := labels[k]
values[j] = candidates[i%len(candidates)]
}
vec.WithLabelValues(values...)
}
}

1
vendor/github.com/prometheus/client_model/.gitignore generated vendored
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@ -1 +0,0 @@
target/

201
vendor/github.com/prometheus/client_model/LICENSE generated vendored Normal file
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@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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To apply the Apache License to your work, attach the following
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See the License for the specific language governing permissions and
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61
vendor/github.com/prometheus/client_model/Makefile generated vendored
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@ -1,61 +0,0 @@
# Copyright 2013 Prometheus Team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
KEY_ID ?= _DEFINE_ME_
all: cpp go java python ruby
SUFFIXES:
cpp: cpp/metrics.pb.cc cpp/metrics.pb.h
cpp/metrics.pb.cc: metrics.proto
protoc $< --cpp_out=cpp/
cpp/metrics.pb.h: metrics.proto
protoc $< --cpp_out=cpp/
go: go/metrics.pb.go
go/metrics.pb.go: metrics.proto
protoc $< --go_out=go/
java: src/main/java/io/prometheus/client/Metrics.java pom.xml
mvn clean compile package
src/main/java/io/prometheus/client/Metrics.java: metrics.proto
protoc $< --java_out=src/main/java
python: python/prometheus/client/model/metrics_pb2.py
python/prometheus/client/model/metrics_pb2.py: metrics.proto
protoc $< --python_out=python/prometheus/client/model
ruby:
$(MAKE) -C ruby build
clean:
-rm -rf cpp/*
-rm -rf go/*
-rm -rf java/*
-rm -rf python/*
-$(MAKE) -C ruby clean
-mvn clean
maven-deploy-snapshot: java
mvn clean deploy -Dgpg.keyname=$(KEY_ID) -DperformRelease=true
maven-deploy-release: java
mvn clean release:clean release:prepare release:perform -Dgpg.keyname=$(KEY_ID) -DperformRelease=true
.PHONY: all clean cpp go java maven-deploy-snapshot maven-deploy-release python ruby

3380
vendor/github.com/prometheus/client_model/cpp/metrics.pb.cc generated vendored
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2072
vendor/github.com/prometheus/client_model/cpp/metrics.pb.h generated vendored
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81
vendor/github.com/prometheus/client_model/metrics.proto generated vendored
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@ -1,81 +0,0 @@
// Copyright 2013 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
syntax = "proto2";
package io.prometheus.client;
option java_package = "io.prometheus.client";
message LabelPair {
optional string name = 1;
optional string value = 2;
}
enum MetricType {
COUNTER = 0;
GAUGE = 1;
SUMMARY = 2;
UNTYPED = 3;
HISTOGRAM = 4;
}
message Gauge {
optional double value = 1;
}
message Counter {
optional double value = 1;
}
message Quantile {
optional double quantile = 1;
optional double value = 2;
}
message Summary {
optional uint64 sample_count = 1;
optional double sample_sum = 2;
repeated Quantile quantile = 3;
}
message Untyped {
optional double value = 1;
}
message Histogram {
optional uint64 sample_count = 1;
optional double sample_sum = 2;
repeated Bucket bucket = 3; // Ordered in increasing order of upper_bound, +Inf bucket is optional.
}
message Bucket {
optional uint64 cumulative_count = 1; // Cumulative in increasing order.
optional double upper_bound = 2; // Inclusive.
}
message Metric {
repeated LabelPair label = 1;
optional Gauge gauge = 2;
optional Counter counter = 3;
optional Summary summary = 4;
optional Untyped untyped = 5;
optional Histogram histogram = 7;
optional int64 timestamp_ms = 6;
}
message MetricFamily {
optional string name = 1;
optional string help = 2;
optional MetricType type = 3;
repeated Metric metric = 4;
}

130
vendor/github.com/prometheus/client_model/pom.xml generated vendored
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@ -1,130 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>io.prometheus.client</groupId>
<artifactId>model</artifactId>
<version>0.0.3-SNAPSHOT</version>
<parent>
<groupId>org.sonatype.oss</groupId>
<artifactId>oss-parent</artifactId>
<version>7</version>
</parent>
<name>Prometheus Client Data Model</name>
<url>http://github.com/prometheus/client_model</url>
<description>
Prometheus Client Data Model: Generated Protocol Buffer Assets
</description>
<licenses>
<license>
<name>The Apache Software License, Version 2.0</name>
<url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
<distribution>repo</distribution>
</license>
</licenses>
<scm>
<connection>scm:git:git@github.com:prometheus/client_model.git</connection>
<developerConnection>scm:git:git@github.com:prometheus/client_model.git</developerConnection>
<url>git@github.com:prometheus/client_model.git</url>
</scm>
<developers>
<developer>
<id>mtp</id>
<name>Matt T. Proud</name>
<email>matt.proud@gmail.com</email>
</developer>
</developers>
<dependencies>
<dependency>
<groupId>com.google.protobuf</groupId>
<artifactId>protobuf-java</artifactId>
<version>2.5.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>2.8</version>
<configuration>
<encoding>UTF-8</encoding>
<docencoding>UTF-8</docencoding>
<linksource>true</linksource>
</configuration>
<executions>
<execution>
<id>generate-javadoc-site-report</id>
<phase>site</phase>
<goals>
<goal>javadoc</goal>
</goals>
</execution>
<execution>
<id>attach-javadocs</id>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
<version>3.1</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<version>2.2.1</version>
<executions>
<execution>
<id>attach-sources</id>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>release-sign-artifacts</id>
<activation>
<property>
<name>performRelease</name>
<value>true</value>
</property>
</activation>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-gpg-plugin</artifactId>
<version>1.4</version>
<executions>
<execution>
<id>sign-artifacts</id>
<phase>verify</phase>
<goals>
<goal>sign</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>

12
vendor/github.com/prometheus/client_model/python/prometheus/__init__.py generated vendored
View File

@ -1,12 +0,0 @@
# Copyright 2013 Prometheus Team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

12
vendor/github.com/prometheus/client_model/python/prometheus/client/__init__.py generated vendored
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@ -1,12 +0,0 @@
# Copyright 2013 Prometheus Team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

14
vendor/github.com/prometheus/client_model/python/prometheus/client/model/__init__.py generated vendored
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@ -1,14 +0,0 @@
# Copyright 2013 Prometheus Team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
__all__ = ['metrics_pb2']

575
vendor/github.com/prometheus/client_model/python/prometheus/client/model/metrics_pb2.py generated vendored
View File

@ -1,575 +0,0 @@
# Generated by the protocol buffer compiler. DO NOT EDIT!
# source: metrics.proto
import sys
_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
from google.protobuf.internal import enum_type_wrapper
from google.protobuf import descriptor as _descriptor
from google.protobuf import message as _message
from google.protobuf import reflection as _reflection
from google.protobuf import symbol_database as _symbol_database
from google.protobuf import descriptor_pb2
# @@protoc_insertion_point(imports)
_sym_db = _symbol_database.Default()
DESCRIPTOR = _descriptor.FileDescriptor(
name='metrics.proto',
package='io.prometheus.client',
serialized_pb=_b('\n\rmetrics.proto\x12\x14io.prometheus.client\"(\n\tLabelPair\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\r\n\x05value\x18\x02 \x01(\t\"\x16\n\x05Gauge\x12\r\n\x05value\x18\x01 \x01(\x01\"\x18\n\x07\x43ounter\x12\r\n\x05value\x18\x01 \x01(\x01\"+\n\x08Quantile\x12\x10\n\x08quantile\x18\x01 \x01(\x01\x12\r\n\x05value\x18\x02 \x01(\x01\"e\n\x07Summary\x12\x14\n\x0csample_count\x18\x01 \x01(\x04\x12\x12\n\nsample_sum\x18\x02 \x01(\x01\x12\x30\n\x08quantile\x18\x03 \x03(\x0b\x32\x1e.io.prometheus.client.Quantile\"\x18\n\x07Untyped\x12\r\n\x05value\x18\x01 \x01(\x01\"c\n\tHistogram\x12\x14\n\x0csample_count\x18\x01 \x01(\x04\x12\x12\n\nsample_sum\x18\x02 \x01(\x01\x12,\n\x06\x62ucket\x18\x03 \x03(\x0b\x32\x1c.io.prometheus.client.Bucket\"7\n\x06\x42ucket\x12\x18\n\x10\x63umulative_count\x18\x01 \x01(\x04\x12\x13\n\x0bupper_bound\x18\x02 \x01(\x01\"\xbe\x02\n\x06Metric\x12.\n\x05label\x18\x01 \x03(\x0b\x32\x1f.io.prometheus.client.LabelPair\x12*\n\x05gauge\x18\x02 \x01(\x0b\x32\x1b.io.prometheus.client.Gauge\x12.\n\x07\x63ounter\x18\x03 \x01(\x0b\x32\x1d.io.prometheus.client.Counter\x12.\n\x07summary\x18\x04 \x01(\x0b\x32\x1d.io.prometheus.client.Summary\x12.\n\x07untyped\x18\x05 \x01(\x0b\x32\x1d.io.prometheus.client.Untyped\x12\x32\n\thistogram\x18\x07 \x01(\x0b\x32\x1f.io.prometheus.client.Histogram\x12\x14\n\x0ctimestamp_ms\x18\x06 \x01(\x03\"\x88\x01\n\x0cMetricFamily\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\x0c\n\x04help\x18\x02 \x01(\t\x12.\n\x04type\x18\x03 \x01(\x0e\x32 .io.prometheus.client.MetricType\x12,\n\x06metric\x18\x04 \x03(\x0b\x32\x1c.io.prometheus.client.Metric*M\n\nMetricType\x12\x0b\n\x07\x43OUNTER\x10\x00\x12\t\n\x05GAUGE\x10\x01\x12\x0b\n\x07SUMMARY\x10\x02\x12\x0b\n\x07UNTYPED\x10\x03\x12\r\n\tHISTOGRAM\x10\x04\x42\x16\n\x14io.prometheus.client')
)
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
_METRICTYPE = _descriptor.EnumDescriptor(
name='MetricType',
full_name='io.prometheus.client.MetricType',
filename=None,
file=DESCRIPTOR,
values=[
_descriptor.EnumValueDescriptor(
name='COUNTER', index=0, number=0,
options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='GAUGE', index=1, number=1,
options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='SUMMARY', index=2, number=2,
options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='UNTYPED', index=3, number=3,
options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='HISTOGRAM', index=4, number=4,
options=None,
type=None),
],
containing_type=None,
options=None,
serialized_start=923,
serialized_end=1000,
)
_sym_db.RegisterEnumDescriptor(_METRICTYPE)
MetricType = enum_type_wrapper.EnumTypeWrapper(_METRICTYPE)
COUNTER = 0
GAUGE = 1
SUMMARY = 2
UNTYPED = 3
HISTOGRAM = 4
_LABELPAIR = _descriptor.Descriptor(
name='LabelPair',
full_name='io.prometheus.client.LabelPair',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='name', full_name='io.prometheus.client.LabelPair.name', index=0,
number=1, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=_b("").decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='value', full_name='io.prometheus.client.LabelPair.value', index=1,
number=2, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=_b("").decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[],
enum_types=[
],
options=None,
is_extendable=False,
extension_ranges=[],
oneofs=[
],
serialized_start=39,
serialized_end=79,
)
_GAUGE = _descriptor.Descriptor(
name='Gauge',
full_name='io.prometheus.client.Gauge',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='value', full_name='io.prometheus.client.Gauge.value', index=0,
number=1, type=1, cpp_type=5, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[],
enum_types=[
],
options=None,
is_extendable=False,
extension_ranges=[],
oneofs=[
],
serialized_start=81,
serialized_end=103,
)
_COUNTER = _descriptor.Descriptor(
name='Counter',
full_name='io.prometheus.client.Counter',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='value', full_name='io.prometheus.client.Counter.value', index=0,
number=1, type=1, cpp_type=5, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[],
enum_types=[
],
options=None,
is_extendable=False,
extension_ranges=[],
oneofs=[
],
serialized_start=105,
serialized_end=129,
)
_QUANTILE = _descriptor.Descriptor(
name='Quantile',
full_name='io.prometheus.client.Quantile',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='quantile', full_name='io.prometheus.client.Quantile.quantile', index=0,
number=1, type=1, cpp_type=5, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='value', full_name='io.prometheus.client.Quantile.value', index=1,
number=2, type=1, cpp_type=5, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[],
enum_types=[
],
options=None,
is_extendable=False,
extension_ranges=[],
oneofs=[
],
serialized_start=131,
serialized_end=174,
)
_SUMMARY = _descriptor.Descriptor(
name='Summary',
full_name='io.prometheus.client.Summary',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='sample_count', full_name='io.prometheus.client.Summary.sample_count', index=0,
number=1, type=4, cpp_type=4, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='sample_sum', full_name='io.prometheus.client.Summary.sample_sum', index=1,
number=2, type=1, cpp_type=5, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='quantile', full_name='io.prometheus.client.Summary.quantile', index=2,
number=3, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[],
enum_types=[
],
options=None,
is_extendable=False,
extension_ranges=[],
oneofs=[
],
serialized_start=176,
serialized_end=277,
)
_UNTYPED = _descriptor.Descriptor(
name='Untyped',
full_name='io.prometheus.client.Untyped',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='value', full_name='io.prometheus.client.Untyped.value', index=0,
number=1, type=1, cpp_type=5, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[],
enum_types=[
],
options=None,
is_extendable=False,
extension_ranges=[],
oneofs=[
],
serialized_start=279,
serialized_end=303,
)
_HISTOGRAM = _descriptor.Descriptor(
name='Histogram',
full_name='io.prometheus.client.Histogram',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='sample_count', full_name='io.prometheus.client.Histogram.sample_count', index=0,
number=1, type=4, cpp_type=4, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='sample_sum', full_name='io.prometheus.client.Histogram.sample_sum', index=1,
number=2, type=1, cpp_type=5, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='bucket', full_name='io.prometheus.client.Histogram.bucket', index=2,
number=3, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[],
enum_types=[
],
options=None,
is_extendable=False,
extension_ranges=[],
oneofs=[
],
serialized_start=305,
serialized_end=404,
)
_BUCKET = _descriptor.Descriptor(
name='Bucket',
full_name='io.prometheus.client.Bucket',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='cumulative_count', full_name='io.prometheus.client.Bucket.cumulative_count', index=0,
number=1, type=4, cpp_type=4, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='upper_bound', full_name='io.prometheus.client.Bucket.upper_bound', index=1,
number=2, type=1, cpp_type=5, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[],
enum_types=[
],
options=None,
is_extendable=False,
extension_ranges=[],
oneofs=[
],
serialized_start=406,
serialized_end=461,
)
_METRIC = _descriptor.Descriptor(
name='Metric',
full_name='io.prometheus.client.Metric',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='label', full_name='io.prometheus.client.Metric.label', index=0,
number=1, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='gauge', full_name='io.prometheus.client.Metric.gauge', index=1,
number=2, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='counter', full_name='io.prometheus.client.Metric.counter', index=2,
number=3, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='summary', full_name='io.prometheus.client.Metric.summary', index=3,
number=4, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='untyped', full_name='io.prometheus.client.Metric.untyped', index=4,
number=5, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='histogram', full_name='io.prometheus.client.Metric.histogram', index=5,
number=7, type=11, cpp_type=10, label=1,
has_default_value=False, default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='timestamp_ms', full_name='io.prometheus.client.Metric.timestamp_ms', index=6,
number=6, type=3, cpp_type=2, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[],
enum_types=[
],
options=None,
is_extendable=False,
extension_ranges=[],
oneofs=[
],
serialized_start=464,
serialized_end=782,
)
_METRICFAMILY = _descriptor.Descriptor(
name='MetricFamily',
full_name='io.prometheus.client.MetricFamily',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='name', full_name='io.prometheus.client.MetricFamily.name', index=0,
number=1, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=_b("").decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='help', full_name='io.prometheus.client.MetricFamily.help', index=1,
number=2, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=_b("").decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='type', full_name='io.prometheus.client.MetricFamily.type', index=2,
number=3, type=14, cpp_type=8, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='metric', full_name='io.prometheus.client.MetricFamily.metric', index=3,
number=4, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[],
enum_types=[
],
options=None,
is_extendable=False,
extension_ranges=[],
oneofs=[
],
serialized_start=785,
serialized_end=921,
)
_SUMMARY.fields_by_name['quantile'].message_type = _QUANTILE
_HISTOGRAM.fields_by_name['bucket'].message_type = _BUCKET
_METRIC.fields_by_name['label'].message_type = _LABELPAIR
_METRIC.fields_by_name['gauge'].message_type = _GAUGE
_METRIC.fields_by_name['counter'].message_type = _COUNTER
_METRIC.fields_by_name['summary'].message_type = _SUMMARY
_METRIC.fields_by_name['untyped'].message_type = _UNTYPED
_METRIC.fields_by_name['histogram'].message_type = _HISTOGRAM
_METRICFAMILY.fields_by_name['type'].enum_type = _METRICTYPE
_METRICFAMILY.fields_by_name['metric'].message_type = _METRIC
DESCRIPTOR.message_types_by_name['LabelPair'] = _LABELPAIR
DESCRIPTOR.message_types_by_name['Gauge'] = _GAUGE
DESCRIPTOR.message_types_by_name['Counter'] = _COUNTER
DESCRIPTOR.message_types_by_name['Quantile'] = _QUANTILE
DESCRIPTOR.message_types_by_name['Summary'] = _SUMMARY
DESCRIPTOR.message_types_by_name['Untyped'] = _UNTYPED
DESCRIPTOR.message_types_by_name['Histogram'] = _HISTOGRAM
DESCRIPTOR.message_types_by_name['Bucket'] = _BUCKET
DESCRIPTOR.message_types_by_name['Metric'] = _METRIC
DESCRIPTOR.message_types_by_name['MetricFamily'] = _METRICFAMILY
DESCRIPTOR.enum_types_by_name['MetricType'] = _METRICTYPE
LabelPair = _reflection.GeneratedProtocolMessageType('LabelPair', (_message.Message,), dict(
DESCRIPTOR = _LABELPAIR,
__module__ = 'metrics_pb2'
# @@protoc_insertion_point(class_scope:io.prometheus.client.LabelPair)
))
_sym_db.RegisterMessage(LabelPair)
Gauge = _reflection.GeneratedProtocolMessageType('Gauge', (_message.Message,), dict(
DESCRIPTOR = _GAUGE,
__module__ = 'metrics_pb2'
# @@protoc_insertion_point(class_scope:io.prometheus.client.Gauge)
))
_sym_db.RegisterMessage(Gauge)
Counter = _reflection.GeneratedProtocolMessageType('Counter', (_message.Message,), dict(
DESCRIPTOR = _COUNTER,
__module__ = 'metrics_pb2'
# @@protoc_insertion_point(class_scope:io.prometheus.client.Counter)
))
_sym_db.RegisterMessage(Counter)
Quantile = _reflection.GeneratedProtocolMessageType('Quantile', (_message.Message,), dict(
DESCRIPTOR = _QUANTILE,
__module__ = 'metrics_pb2'
# @@protoc_insertion_point(class_scope:io.prometheus.client.Quantile)
))
_sym_db.RegisterMessage(Quantile)
Summary = _reflection.GeneratedProtocolMessageType('Summary', (_message.Message,), dict(
DESCRIPTOR = _SUMMARY,
__module__ = 'metrics_pb2'
# @@protoc_insertion_point(class_scope:io.prometheus.client.Summary)
))
_sym_db.RegisterMessage(Summary)
Untyped = _reflection.GeneratedProtocolMessageType('Untyped', (_message.Message,), dict(
DESCRIPTOR = _UNTYPED,
__module__ = 'metrics_pb2'
# @@protoc_insertion_point(class_scope:io.prometheus.client.Untyped)
))
_sym_db.RegisterMessage(Untyped)
Histogram = _reflection.GeneratedProtocolMessageType('Histogram', (_message.Message,), dict(
DESCRIPTOR = _HISTOGRAM,
__module__ = 'metrics_pb2'
# @@protoc_insertion_point(class_scope:io.prometheus.client.Histogram)
))
_sym_db.RegisterMessage(Histogram)
Bucket = _reflection.GeneratedProtocolMessageType('Bucket', (_message.Message,), dict(
DESCRIPTOR = _BUCKET,
__module__ = 'metrics_pb2'
# @@protoc_insertion_point(class_scope:io.prometheus.client.Bucket)
))
_sym_db.RegisterMessage(Bucket)
Metric = _reflection.GeneratedProtocolMessageType('Metric', (_message.Message,), dict(
DESCRIPTOR = _METRIC,
__module__ = 'metrics_pb2'
# @@protoc_insertion_point(class_scope:io.prometheus.client.Metric)
))
_sym_db.RegisterMessage(Metric)
MetricFamily = _reflection.GeneratedProtocolMessageType('MetricFamily', (_message.Message,), dict(
DESCRIPTOR = _METRICFAMILY,
__module__ = 'metrics_pb2'
# @@protoc_insertion_point(class_scope:io.prometheus.client.MetricFamily)
))
_sym_db.RegisterMessage(MetricFamily)
DESCRIPTOR.has_options = True
DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), _b('\n\024io.prometheus.client'))
# @@protoc_insertion_point(module_scope)

5
vendor/github.com/prometheus/client_model/ruby/.gitignore generated vendored
View File

@ -1,5 +0,0 @@
*.gem
.bundle
Gemfile.lock
pkg
vendor/bundle

4
vendor/github.com/prometheus/client_model/ruby/Gemfile generated vendored
View File

@ -1,4 +0,0 @@
source 'https://rubygems.org'
# Specify your gem's dependencies in prometheus-client-model.gemspec
gemspec

17
vendor/github.com/prometheus/client_model/ruby/Makefile generated vendored
View File

@ -1,17 +0,0 @@
VENDOR_BUNDLE = vendor/bundle
build: $(VENDOR_BUNDLE)/.bundled
BEEFCAKE_NAMESPACE=Prometheus::Client protoc --beefcake_out lib/prometheus/client/model -I .. ../metrics.proto
$(VENDOR_BUNDLE):
mkdir -p $@
$(VENDOR_BUNDLE)/.bundled: $(VENDOR_BUNDLE) Gemfile
bundle install --quiet --path $<
@touch $@
clean:
-rm -f lib/prometheus/client/model/metrics.pb.rb
-rm -rf $(VENDOR_BUNDLE)
.PHONY: build clean

1
vendor/github.com/prometheus/client_model/ruby/Rakefile generated vendored
View File

@ -1 +0,0 @@
require "bundler/gem_tasks"

2
vendor/github.com/prometheus/client_model/ruby/lib/prometheus/client/model.rb generated vendored
View File

@ -1,2 +0,0 @@
require 'prometheus/client/model/metrics.pb'
require 'prometheus/client/model/version'

111
vendor/github.com/prometheus/client_model/ruby/lib/prometheus/client/model/metrics.pb.rb generated vendored
View File

@ -1,111 +0,0 @@
## Generated from metrics.proto for io.prometheus.client
require "beefcake"
module Prometheus
module Client
module MetricType
COUNTER = 0
GAUGE = 1
SUMMARY = 2
UNTYPED = 3
HISTOGRAM = 4
end
class LabelPair
include Beefcake::Message
end
class Gauge
include Beefcake::Message
end
class Counter
include Beefcake::Message
end
class Quantile
include Beefcake::Message
end
class Summary
include Beefcake::Message
end
class Untyped
include Beefcake::Message
end
class Histogram
include Beefcake::Message
end
class Bucket
include Beefcake::Message
end
class Metric
include Beefcake::Message
end
class MetricFamily
include Beefcake::Message
end
class LabelPair
optional :name, :string, 1
optional :value, :string, 2
end
class Gauge
optional :value, :double, 1
end
class Counter
optional :value, :double, 1
end
class Quantile
optional :quantile, :double, 1
optional :value, :double, 2
end
class Summary
optional :sample_count, :uint64, 1
optional :sample_sum, :double, 2
repeated :quantile, Quantile, 3
end
class Untyped
optional :value, :double, 1
end
class Histogram
optional :sample_count, :uint64, 1
optional :sample_sum, :double, 2
repeated :bucket, Bucket, 3
end
class Bucket
optional :cumulative_count, :uint64, 1
optional :upper_bound, :double, 2
end
class Metric
repeated :label, LabelPair, 1
optional :gauge, Gauge, 2
optional :counter, Counter, 3
optional :summary, Summary, 4
optional :untyped, Untyped, 5
optional :histogram, Histogram, 7
optional :timestamp_ms, :int64, 6
end
class MetricFamily
optional :name, :string, 1
optional :help, :string, 2
optional :type, MetricType, 3
repeated :metric, Metric, 4
end
end
end

7
vendor/github.com/prometheus/client_model/ruby/lib/prometheus/client/model/version.rb generated vendored
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@ -1,7 +0,0 @@
module Prometheus
module Client
module Model
VERSION = '0.1.0'
end
end
end

22
vendor/github.com/prometheus/client_model/ruby/prometheus-client-model.gemspec generated vendored
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@ -1,22 +0,0 @@
# coding: utf-8
lib = File.expand_path('../lib', __FILE__)
$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
require 'prometheus/client/model/version'
Gem::Specification.new do |spec|
spec.name = 'prometheus-client-model'
spec.version = Prometheus::Client::Model::VERSION
spec.authors = ['Tobias Schmidt']
spec.email = ['tobidt@gmail.com']
spec.summary = 'Data model artifacts for the Prometheus Ruby client'
spec.homepage = 'https://github.com/prometheus/client_model/tree/master/ruby'
spec.license = 'Apache 2.0'
spec.files = %w[README.md LICENSE] + Dir.glob('{lib/**/*}')
spec.require_paths = ['lib']
spec.add_dependency 'beefcake', '>= 0.4.0'
spec.add_development_dependency 'bundler', '~> 1.3'
spec.add_development_dependency 'rake'
end

23
vendor/github.com/prometheus/client_model/setup.py generated vendored
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@ -1,23 +0,0 @@
#!/usr/bin/python
from setuptools import setup
setup(
name = 'prometheus_client_model',
version = '0.0.1',
author = 'Matt T. Proud',
author_email = 'matt.proud@gmail.com',
description = 'Data model artifacts for the Prometheus client.',
license = 'Apache License 2.0',
url = 'http://github.com/prometheus/client_model',
packages = ['prometheus', 'prometheus/client', 'prometheus/client/model'],
package_dir = {'': 'python'},
requires = ['protobuf(==2.4.1)'],
platforms = 'Platform Independent',
classifiers = ['Development Status :: 3 - Alpha',
'Intended Audience :: Developers',
'Intended Audience :: System Administrators',
'License :: OSI Approved :: Apache Software License',
'Operating System :: OS Independent',
'Topic :: Software Development :: Testing',
'Topic :: System :: Monitoring'])

7683
vendor/github.com/prometheus/client_model/src/main/java/io/prometheus/client/Metrics.java generated vendored
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201
vendor/github.com/prometheus/common/LICENSE generated vendored Normal file
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@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
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Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
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6. Trademarks. This License does not grant permission to use the trade
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7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
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8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
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has been advised of the possibility of such damages.
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the Work or Derivative Works thereof, You may choose to offer,
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or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
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incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
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APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
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Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

47
vendor/github.com/prometheus/common/config/config.go generated vendored
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@ -1,47 +0,0 @@
// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"fmt"
"strings"
)
func checkOverflow(m map[string]interface{}, ctx string) error {
if len(m) > 0 {
var keys []string
for k := range m {
keys = append(keys, k)
}
return fmt.Errorf("unknown fields in %s: %s", ctx, strings.Join(keys, ", "))
}
return nil
}
// Secret special type for storing secrets.
type Secret string
// MarshalYAML implements the yaml.Marshaler interface for Secrets.
func (s Secret) MarshalYAML() (interface{}, error) {
if s != "" {
return "<secret>", nil
}
return nil, nil
}
//UnmarshalYAML implements the yaml.Unmarshaler interface for Secrets.
func (s *Secret) UnmarshalYAML(unmarshal func(interface{}) error) error {
type plain Secret
return unmarshal((*plain)(s))
}

279
vendor/github.com/prometheus/common/config/http_config.go generated vendored
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@ -1,279 +0,0 @@
// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"crypto/tls"
"crypto/x509"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"strings"
yaml "gopkg.in/yaml.v2"
)
// BasicAuth contains basic HTTP authentication credentials.
type BasicAuth struct {
Username string `yaml:"username"`
Password Secret `yaml:"password"`
// Catches all undefined fields and must be empty after parsing.
XXX map[string]interface{} `yaml:",inline"`
}
// URL is a custom URL type that allows validation at configuration load time.
type URL struct {
*url.URL
}
// UnmarshalYAML implements the yaml.Unmarshaler interface for URLs.
func (u *URL) UnmarshalYAML(unmarshal func(interface{}) error) error {
var s string
if err := unmarshal(&s); err != nil {
return err
}
urlp, err := url.Parse(s)
if err != nil {
return err
}
u.URL = urlp
return nil
}
// MarshalYAML implements the yaml.Marshaler interface for URLs.
func (u URL) MarshalYAML() (interface{}, error) {
if u.URL != nil {
return u.String(), nil
}
return nil, nil
}
// HTTPClientConfig configures an HTTP client.
type HTTPClientConfig struct {
// The HTTP basic authentication credentials for the targets.
BasicAuth *BasicAuth `yaml:"basic_auth,omitempty"`
// The bearer token for the targets.
BearerToken Secret `yaml:"bearer_token,omitempty"`
// The bearer token file for the targets.
BearerTokenFile string `yaml:"bearer_token_file,omitempty"`
// HTTP proxy server to use to connect to the targets.
ProxyURL URL `yaml:"proxy_url,omitempty"`
// TLSConfig to use to connect to the targets.
TLSConfig TLSConfig `yaml:"tls_config,omitempty"`
// Catches all undefined fields and must be empty after parsing.
XXX map[string]interface{} `yaml:",inline"`
}
func (c *HTTPClientConfig) validate() error {
if len(c.BearerToken) > 0 && len(c.BearerTokenFile) > 0 {
return fmt.Errorf("at most one of bearer_token & bearer_token_file must be configured")
}
if c.BasicAuth != nil && (len(c.BearerToken) > 0 || len(c.BearerTokenFile) > 0) {
return fmt.Errorf("at most one of basic_auth, bearer_token & bearer_token_file must be configured")
}
return nil
}
// UnmarshalYAML implements the yaml.Unmarshaler interface
func (c *HTTPClientConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
type plain HTTPClientConfig
err := unmarshal((*plain)(c))
if err != nil {
return err
}
err = c.validate()
if err != nil {
return c.validate()
}
return checkOverflow(c.XXX, "http_client_config")
}
// UnmarshalYAML implements the yaml.Unmarshaler interface.
func (a *BasicAuth) UnmarshalYAML(unmarshal func(interface{}) error) error {
type plain BasicAuth
err := unmarshal((*plain)(a))
if err != nil {
return err
}
return checkOverflow(a.XXX, "basic_auth")
}
// NewHTTPClientFromConfig returns a new HTTP client configured for the
// given config.HTTPClientConfig.
func NewHTTPClientFromConfig(cfg *HTTPClientConfig) (*http.Client, error) {
tlsConfig, err := NewTLSConfig(&cfg.TLSConfig)
if err != nil {
return nil, err
}
// It's the caller's job to handle timeouts
var rt http.RoundTripper = &http.Transport{
Proxy: http.ProxyURL(cfg.ProxyURL.URL),
DisableKeepAlives: true,
TLSClientConfig: tlsConfig,
}
// If a bearer token is provided, create a round tripper that will set the
// Authorization header correctly on each request.
bearerToken := cfg.BearerToken
if len(bearerToken) == 0 && len(cfg.BearerTokenFile) > 0 {
b, err := ioutil.ReadFile(cfg.BearerTokenFile)
if err != nil {
return nil, fmt.Errorf("unable to read bearer token file %s: %s", cfg.BearerTokenFile, err)
}
bearerToken = Secret(strings.TrimSpace(string(b)))
}
if len(bearerToken) > 0 {
rt = NewBearerAuthRoundTripper(bearerToken, rt)
}
if cfg.BasicAuth != nil {
rt = NewBasicAuthRoundTripper(cfg.BasicAuth.Username, Secret(cfg.BasicAuth.Password), rt)
}
// Return a new client with the configured round tripper.
return &http.Client{Transport: rt}, nil
}
type bearerAuthRoundTripper struct {
bearerToken Secret
rt http.RoundTripper
}
type basicAuthRoundTripper struct {
username string
password Secret
rt http.RoundTripper
}
// NewBasicAuthRoundTripper will apply a BASIC auth authorization header to a request unless it has
// already been set.
func NewBasicAuthRoundTripper(username string, password Secret, rt http.RoundTripper) http.RoundTripper {
return &basicAuthRoundTripper{username, password, rt}
}
func (rt *bearerAuthRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
if len(req.Header.Get("Authorization")) == 0 {
req = cloneRequest(req)
req.Header.Set("Authorization", "Bearer "+string(rt.bearerToken))
}
return rt.rt.RoundTrip(req)
}
// NewBearerAuthRoundTripper adds the provided bearer token to a request unless the authorization
// header has already been set.
func NewBearerAuthRoundTripper(bearer Secret, rt http.RoundTripper) http.RoundTripper {
return &bearerAuthRoundTripper{bearer, rt}
}
func (rt *basicAuthRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
if len(req.Header.Get("Authorization")) != 0 {
return rt.RoundTrip(req)
}
req = cloneRequest(req)
req.SetBasicAuth(rt.username, string(rt.password))
return rt.rt.RoundTrip(req)
}
// cloneRequest returns a clone of the provided *http.Request.
// The clone is a shallow copy of the struct and its Header map.
func cloneRequest(r *http.Request) *http.Request {
// Shallow copy of the struct.
r2 := new(http.Request)
*r2 = *r
// Deep copy of the Header.
r2.Header = make(http.Header)
for k, s := range r.Header {
r2.Header[k] = s
}
return r2
}
// NewTLSConfig creates a new tls.Config from the given config.TLSConfig.
func NewTLSConfig(cfg *TLSConfig) (*tls.Config, error) {
tlsConfig := &tls.Config{InsecureSkipVerify: cfg.InsecureSkipVerify}
// If a CA cert is provided then let's read it in so we can validate the
// scrape target's certificate properly.
if len(cfg.CAFile) > 0 {
caCertPool := x509.NewCertPool()
// Load CA cert.
caCert, err := ioutil.ReadFile(cfg.CAFile)
if err != nil {
return nil, fmt.Errorf("unable to use specified CA cert %s: %s", cfg.CAFile, err)
}
caCertPool.AppendCertsFromPEM(caCert)
tlsConfig.RootCAs = caCertPool
}
if len(cfg.ServerName) > 0 {
tlsConfig.ServerName = cfg.ServerName
}
// If a client cert & key is provided then configure TLS config accordingly.
if len(cfg.CertFile) > 0 && len(cfg.KeyFile) == 0 {
return nil, fmt.Errorf("client cert file %q specified without client key file", cfg.CertFile)
} else if len(cfg.KeyFile) > 0 && len(cfg.CertFile) == 0 {
return nil, fmt.Errorf("client key file %q specified without client cert file", cfg.KeyFile)
} else if len(cfg.CertFile) > 0 && len(cfg.KeyFile) > 0 {
cert, err := tls.LoadX509KeyPair(cfg.CertFile, cfg.KeyFile)
if err != nil {
return nil, fmt.Errorf("unable to use specified client cert (%s) & key (%s): %s", cfg.CertFile, cfg.KeyFile, err)
}
tlsConfig.Certificates = []tls.Certificate{cert}
}
tlsConfig.BuildNameToCertificate()
return tlsConfig, nil
}
// TLSConfig configures the options for TLS connections.
type TLSConfig struct {
// The CA cert to use for the targets.
CAFile string `yaml:"ca_file,omitempty"`
// The client cert file for the targets.
CertFile string `yaml:"cert_file,omitempty"`
// The client key file for the targets.
KeyFile string `yaml:"key_file,omitempty"`
// Used to verify the hostname for the targets.
ServerName string `yaml:"server_name,omitempty"`
// Disable target certificate validation.
InsecureSkipVerify bool `yaml:"insecure_skip_verify"`
// Catches all undefined fields and must be empty after parsing.
XXX map[string]interface{} `yaml:",inline"`
}
// UnmarshalYAML implements the yaml.Unmarshaler interface.
func (c *TLSConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
type plain TLSConfig
if err := unmarshal((*plain)(c)); err != nil {
return err
}
return checkOverflow(c.XXX, "TLS config")
}
func (c HTTPClientConfig) String() string {
b, err := yaml.Marshal(c)
if err != nil {
return fmt.Sprintf("<error creating http client config string: %s>", err)
}
return string(b)
}

157
vendor/github.com/prometheus/common/config/http_config_test.go generated vendored
View File

@ -1,157 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"io/ioutil"
"net/http"
"net/url"
"strings"
"testing"
yaml "gopkg.in/yaml.v2"
)
var invalidHTTPClientConfigs = []struct {
httpClientConfigFile string
errMsg string
}{
{
httpClientConfigFile: "testdata/http.conf.bearer-token-and-file-set.bad.yml",
errMsg: "at most one of bearer_token & bearer_token_file must be configured",
},
{
httpClientConfigFile: "testdata/http.conf.empty.bad.yml",
errMsg: "at most one of basic_auth, bearer_token & bearer_token_file must be configured",
},
}
func TestAuthRoundTrippers(t *testing.T) {
cfg, _, err := LoadHTTPConfigFile("testdata/http.conf.good.yml")
if err != nil {
t.Errorf("Error loading HTTP client config: %v", err)
}
tlsConfig, err := NewTLSConfig(&cfg.TLSConfig)
if err != nil {
t.Errorf("Error creating new TLS config: %v", err)
}
rt := &http.Transport{
Proxy: http.ProxyURL(cfg.ProxyURL.URL),
DisableKeepAlives: true,
TLSClientConfig: tlsConfig,
}
req := new(http.Request)
bearerAuthRoundTripper := NewBearerAuthRoundTripper("mysecret", rt)
bearerAuthRoundTripper.RoundTrip(req)
basicAuthRoundTripper := NewBasicAuthRoundTripper("username", "password", rt)
basicAuthRoundTripper.RoundTrip(req)
}
func TestHideHTTPClientConfigSecrets(t *testing.T) {
c, _, err := LoadHTTPConfigFile("testdata/http.conf.good.yml")
if err != nil {
t.Errorf("Error parsing %s: %s", "testdata/http.conf.good.yml", err)
}
// String method must not reveal authentication credentials.
s := c.String()
if strings.Contains(s, "mysecret") {
t.Fatal("http client config's String method reveals authentication credentials.")
}
}
func mustParseURL(u string) *URL {
parsed, err := url.Parse(u)
if err != nil {
panic(err)
}
return &URL{URL: parsed}
}
func TestNewClientFromConfig(t *testing.T) {
cfg, _, err := LoadHTTPConfigFile("testdata/http.conf.good.yml")
if err != nil {
t.Errorf("Error loading HTTP client config: %v", err)
}
_, err = NewHTTPClientFromConfig(cfg)
if err != nil {
t.Errorf("Error creating new client from config: %v", err)
}
}
func TestNewClientFromInvalidConfig(t *testing.T) {
cfg, _, err := LoadHTTPConfigFile("testdata/http.conf.invalid-bearer-token-file.bad.yml")
if err != nil {
t.Errorf("Error loading HTTP client config: %v", err)
}
_, err = NewHTTPClientFromConfig(cfg)
if err == nil {
t.Error("Expected error creating new client from invalid config but got none")
}
if !strings.Contains(err.Error(), "unable to read bearer token file file: open file: no such file or directory") {
t.Errorf("Expected error with config but got: %s", err.Error())
}
}
func TestValidateHTTPConfig(t *testing.T) {
cfg, _, err := LoadHTTPConfigFile("testdata/http.conf.good.yml")
if err != nil {
t.Errorf("Error loading HTTP client config: %v", err)
}
err = cfg.validate()
if err != nil {
t.Fatalf("Error validating %s: %s", "testdata/http.conf.good.yml", err)
}
}
func TestInvalidHTTPConfigs(t *testing.T) {
for _, ee := range invalidHTTPClientConfigs {
_, _, err := LoadHTTPConfigFile(ee.httpClientConfigFile)
if err == nil {
t.Error("Expected error with config but got none")
continue
}
if !strings.Contains(err.Error(), ee.errMsg) {
t.Errorf("Expected error for invalid HTTP client configuration to contain %q but got: %s", ee.errMsg, err)
}
}
}
// LoadHTTPConfig parses the YAML input s into a HTTPClientConfig.
func LoadHTTPConfig(s string) (*HTTPClientConfig, error) {
cfg := &HTTPClientConfig{}
err := yaml.Unmarshal([]byte(s), cfg)
if err != nil {
return nil, err
}
return cfg, nil
}
// LoadHTTPConfigFile parses the given YAML file into a HTTPClientConfig.
func LoadHTTPConfigFile(filename string) (*HTTPClientConfig, []byte, error) {
content, err := ioutil.ReadFile(filename)
if err != nil {
return nil, nil, err
}
cfg, err := LoadHTTPConfig(string(content))
if err != nil {
return nil, nil, err
}
return cfg, content, nil
}

92
vendor/github.com/prometheus/common/config/tls_config_test.go generated vendored
View File

@ -1,92 +0,0 @@
// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"crypto/tls"
"io/ioutil"
"reflect"
"strings"
"testing"
"gopkg.in/yaml.v2"
)
// LoadTLSConfig parses the given YAML file into a tls.Config.
func LoadTLSConfig(filename string) (*tls.Config, error) {
content, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
cfg := &TLSConfig{}
if err = yaml.Unmarshal(content, cfg); err != nil {
return nil, err
}
return NewTLSConfig(cfg)
}
var expectedTLSConfigs = []struct {
filename string
config *tls.Config
}{
{
filename: "tls_config.empty.good.yml",
config: &tls.Config{},
}, {
filename: "tls_config.insecure.good.yml",
config: &tls.Config{InsecureSkipVerify: true},
},
}
func TestValidTLSConfig(t *testing.T) {
for _, cfg := range expectedTLSConfigs {
cfg.config.BuildNameToCertificate()
got, err := LoadTLSConfig("testdata/" + cfg.filename)
if err != nil {
t.Errorf("Error parsing %s: %s", cfg.filename, err)
}
if !reflect.DeepEqual(*got, *cfg.config) {
t.Fatalf("%v: unexpected config result: \n\n%v\n expected\n\n%v", cfg.filename, got, cfg.config)
}
}
}
var expectedTLSConfigErrors = []struct {
filename string
errMsg string
}{
{
filename: "tls_config.invalid_field.bad.yml",
errMsg: "unknown fields in",
}, {
filename: "tls_config.cert_no_key.bad.yml",
errMsg: "specified without client key file",
}, {
filename: "tls_config.key_no_cert.bad.yml",
errMsg: "specified without client cert file",
},
}
func TestBadTLSConfigs(t *testing.T) {
for _, ee := range expectedTLSConfigErrors {
_, err := LoadTLSConfig("testdata/" + ee.filename)
if err == nil {
t.Errorf("Expected error parsing %s but got none", ee.filename)
continue
}
if !strings.Contains(err.Error(), ee.errMsg) {
t.Errorf("Expected error for %s to contain %q but got: %s", ee.filename, ee.errMsg, err)
}
}
}

167
vendor/github.com/prometheus/common/expfmt/bench_test.go generated vendored
View File

@ -1,167 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package expfmt
import (
"bytes"
"compress/gzip"
"io"
"io/ioutil"
"testing"
"github.com/matttproud/golang_protobuf_extensions/pbutil"
dto "github.com/prometheus/client_model/go"
)
var parser TextParser
// Benchmarks to show how much penalty text format parsing actually inflicts.
//
// Example results on Linux 3.13.0, Intel(R) Core(TM) i7-4700MQ CPU @ 2.40GHz, go1.4.
//
// BenchmarkParseText 1000 1188535 ns/op 205085 B/op 6135 allocs/op
// BenchmarkParseTextGzip 1000 1376567 ns/op 246224 B/op 6151 allocs/op
// BenchmarkParseProto 10000 172790 ns/op 52258 B/op 1160 allocs/op
// BenchmarkParseProtoGzip 5000 324021 ns/op 94931 B/op 1211 allocs/op
// BenchmarkParseProtoMap 10000 187946 ns/op 58714 B/op 1203 allocs/op
//
// CONCLUSION: The overhead for the map is negligible. Text format needs ~5x more allocations.
// Without compression, it needs ~7x longer, but with compression (the more relevant scenario),
// the difference becomes less relevant, only ~4x.
//
// The test data contains 248 samples.
// BenchmarkParseText benchmarks the parsing of a text-format scrape into metric
// family DTOs.
func BenchmarkParseText(b *testing.B) {
b.StopTimer()
data, err := ioutil.ReadFile("testdata/text")
if err != nil {
b.Fatal(err)
}
b.StartTimer()
for i := 0; i < b.N; i++ {
if _, err := parser.TextToMetricFamilies(bytes.NewReader(data)); err != nil {
b.Fatal(err)
}
}
}
// BenchmarkParseTextGzip benchmarks the parsing of a gzipped text-format scrape
// into metric family DTOs.
func BenchmarkParseTextGzip(b *testing.B) {
b.StopTimer()
data, err := ioutil.ReadFile("testdata/text.gz")
if err != nil {
b.Fatal(err)
}
b.StartTimer()
for i := 0; i < b.N; i++ {
in, err := gzip.NewReader(bytes.NewReader(data))
if err != nil {
b.Fatal(err)
}
if _, err := parser.TextToMetricFamilies(in); err != nil {
b.Fatal(err)
}
}
}
// BenchmarkParseProto benchmarks the parsing of a protobuf-format scrape into
// metric family DTOs. Note that this does not build a map of metric families
// (as the text version does), because it is not required for Prometheus
// ingestion either. (However, it is required for the text-format parsing, as
// the metric family might be sprinkled all over the text, while the
// protobuf-format guarantees bundling at one place.)
func BenchmarkParseProto(b *testing.B) {
b.StopTimer()
data, err := ioutil.ReadFile("testdata/protobuf")
if err != nil {
b.Fatal(err)
}
b.StartTimer()
for i := 0; i < b.N; i++ {
family := &dto.MetricFamily{}
in := bytes.NewReader(data)
for {
family.Reset()
if _, err := pbutil.ReadDelimited(in, family); err != nil {
if err == io.EOF {
break
}
b.Fatal(err)
}
}
}
}
// BenchmarkParseProtoGzip is like BenchmarkParseProto above, but parses gzipped
// protobuf format.
func BenchmarkParseProtoGzip(b *testing.B) {
b.StopTimer()
data, err := ioutil.ReadFile("testdata/protobuf.gz")
if err != nil {
b.Fatal(err)
}
b.StartTimer()
for i := 0; i < b.N; i++ {
family := &dto.MetricFamily{}
in, err := gzip.NewReader(bytes.NewReader(data))
if err != nil {
b.Fatal(err)
}
for {
family.Reset()
if _, err := pbutil.ReadDelimited(in, family); err != nil {
if err == io.EOF {
break
}
b.Fatal(err)
}
}
}
}
// BenchmarkParseProtoMap is like BenchmarkParseProto but DOES put the parsed
// metric family DTOs into a map. This is not happening during Prometheus
// ingestion. It is just here to measure the overhead of that map creation and
// separate it from the overhead of the text format parsing.
func BenchmarkParseProtoMap(b *testing.B) {
b.StopTimer()
data, err := ioutil.ReadFile("testdata/protobuf")
if err != nil {
b.Fatal(err)
}
b.StartTimer()
for i := 0; i < b.N; i++ {
families := map[string]*dto.MetricFamily{}
in := bytes.NewReader(data)
for {
family := &dto.MetricFamily{}
if _, err := pbutil.ReadDelimited(in, family); err != nil {
if err == io.EOF {
break
}
b.Fatal(err)
}
families[family.GetName()] = family
}
}
}

435
vendor/github.com/prometheus/common/expfmt/decode_test.go generated vendored
View File

@ -1,435 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package expfmt
import (
"io"
"net/http"
"reflect"
"sort"
"strings"
"testing"
"github.com/golang/protobuf/proto"
dto "github.com/prometheus/client_model/go"
"github.com/prometheus/common/model"
)
func TestTextDecoder(t *testing.T) {
var (
ts = model.Now()
in = `
# Only a quite simple scenario with two metric families.
# More complicated tests of the parser itself can be found in the text package.
# TYPE mf2 counter
mf2 3
mf1{label="value1"} -3.14 123456
mf1{label="value2"} 42
mf2 4
`
out = model.Vector{
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "mf1",
"label": "value1",
},
Value: -3.14,
Timestamp: 123456,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "mf1",
"label": "value2",
},
Value: 42,
Timestamp: ts,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "mf2",
},
Value: 3,
Timestamp: ts,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "mf2",
},
Value: 4,
Timestamp: ts,
},
}
)
dec := &SampleDecoder{
Dec: &textDecoder{r: strings.NewReader(in)},
Opts: &DecodeOptions{
Timestamp: ts,
},
}
var all model.Vector
for {
var smpls model.Vector
err := dec.Decode(&smpls)
if err == io.EOF {
break
}
if err != nil {
t.Fatal(err)
}
all = append(all, smpls...)
}
sort.Sort(all)
sort.Sort(out)
if !reflect.DeepEqual(all, out) {
t.Fatalf("output does not match")
}
}
func TestProtoDecoder(t *testing.T) {
var testTime = model.Now()
scenarios := []struct {
in string
expected model.Vector
fail bool
}{
{
in: "",
},
{
in: "\x8f\x01\n\rrequest_count\x12\x12Number of requests\x18\x00\"0\n#\n\x0fsome_!abel_name\x12\x10some_label_value\x1a\t\t\x00\x00\x00\x00\x00\x00E\xc0\"6\n)\n\x12another_label_name\x12\x13another_label_value\x1a\t\t\x00\x00\x00\x00\x00\x00U@",
fail: true,
},
{
in: "\x8f\x01\n\rrequest_count\x12\x12Number of requests\x18\x00\"0\n#\n\x0fsome_label_name\x12\x10some_label_value\x1a\t\t\x00\x00\x00\x00\x00\x00E\xc0\"6\n)\n\x12another_label_name\x12\x13another_label_value\x1a\t\t\x00\x00\x00\x00\x00\x00U@",
expected: model.Vector{
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count",
"some_label_name": "some_label_value",
},
Value: -42,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count",
"another_label_name": "another_label_value",
},
Value: 84,
Timestamp: testTime,
},
},
},
{
in: "\xb9\x01\n\rrequest_count\x12\x12Number of requests\x18\x02\"O\n#\n\x0fsome_label_name\x12\x10some_label_value\"(\x1a\x12\t\xaeG\xe1z\x14\xae\xef?\x11\x00\x00\x00\x00\x00\x00E\xc0\x1a\x12\t+\x87\x16\xd9\xce\xf7\xef?\x11\x00\x00\x00\x00\x00\x00U\xc0\"A\n)\n\x12another_label_name\x12\x13another_label_value\"\x14\x1a\x12\t\x00\x00\x00\x00\x00\x00\xe0?\x11\x00\x00\x00\x00\x00\x00$@",
expected: model.Vector{
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count_count",
"some_label_name": "some_label_value",
},
Value: 0,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count_sum",
"some_label_name": "some_label_value",
},
Value: 0,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count",
"some_label_name": "some_label_value",
"quantile": "0.99",
},
Value: -42,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count",
"some_label_name": "some_label_value",
"quantile": "0.999",
},
Value: -84,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count_count",
"another_label_name": "another_label_value",
},
Value: 0,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count_sum",
"another_label_name": "another_label_value",
},
Value: 0,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count",
"another_label_name": "another_label_value",
"quantile": "0.5",
},
Value: 10,
Timestamp: testTime,
},
},
},
{
in: "\x8d\x01\n\x1drequest_duration_microseconds\x12\x15The response latency.\x18\x04\"S:Q\b\x85\x15\x11\xcd\xcc\xccL\x8f\xcb:A\x1a\v\b{\x11\x00\x00\x00\x00\x00\x00Y@\x1a\f\b\x9c\x03\x11\x00\x00\x00\x00\x00\x00^@\x1a\f\b\xd0\x04\x11\x00\x00\x00\x00\x00\x00b@\x1a\f\b\xf4\v\x11\x9a\x99\x99\x99\x99\x99e@\x1a\f\b\x85\x15\x11\x00\x00\x00\x00\x00\x00\xf0\u007f",
expected: model.Vector{
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_duration_microseconds_bucket",
"le": "100",
},
Value: 123,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_duration_microseconds_bucket",
"le": "120",
},
Value: 412,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_duration_microseconds_bucket",
"le": "144",
},
Value: 592,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_duration_microseconds_bucket",
"le": "172.8",
},
Value: 1524,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_duration_microseconds_bucket",
"le": "+Inf",
},
Value: 2693,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_duration_microseconds_sum",
},
Value: 1756047.3,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_duration_microseconds_count",
},
Value: 2693,
Timestamp: testTime,
},
},
},
{
// The metric type is unset in this protobuf, which needs to be handled
// correctly by the decoder.
in: "\x1c\n\rrequest_count\"\v\x1a\t\t\x00\x00\x00\x00\x00\x00\xf0?",
expected: model.Vector{
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count",
},
Value: 1,
Timestamp: testTime,
},
},
},
}
for i, scenario := range scenarios {
dec := &SampleDecoder{
Dec: &protoDecoder{r: strings.NewReader(scenario.in)},
Opts: &DecodeOptions{
Timestamp: testTime,
},
}
var all model.Vector
for {
var smpls model.Vector
err := dec.Decode(&smpls)
if err == io.EOF {
break
}
if scenario.fail {
if err == nil {
t.Fatal("Expected error but got none")
}
break
}
if err != nil {
t.Fatal(err)
}
all = append(all, smpls...)
}
sort.Sort(all)
sort.Sort(scenario.expected)
if !reflect.DeepEqual(all, scenario.expected) {
t.Fatalf("%d. output does not match, want: %#v, got %#v", i, scenario.expected, all)
}
}
}
func testDiscriminatorHTTPHeader(t testing.TB) {
var scenarios = []struct {
input map[string]string
output Format
err error
}{
{
input: map[string]string{"Content-Type": `application/vnd.google.protobuf; proto="io.prometheus.client.MetricFamily"; encoding="delimited"`},
output: FmtProtoDelim,
},
{
input: map[string]string{"Content-Type": `application/vnd.google.protobuf; proto="illegal"; encoding="delimited"`},
output: FmtUnknown,
},
{
input: map[string]string{"Content-Type": `application/vnd.google.protobuf; proto="io.prometheus.client.MetricFamily"; encoding="illegal"`},
output: FmtUnknown,
},
{
input: map[string]string{"Content-Type": `text/plain; version=0.0.4`},
output: FmtText,
},
{
input: map[string]string{"Content-Type": `text/plain`},
output: FmtText,
},
{
input: map[string]string{"Content-Type": `text/plain; version=0.0.3`},
output: FmtUnknown,
},
}
for i, scenario := range scenarios {
var header http.Header
if len(scenario.input) > 0 {
header = http.Header{}
}
for key, value := range scenario.input {
header.Add(key, value)
}
actual := ResponseFormat(header)
if scenario.output != actual {
t.Errorf("%d. expected %s, got %s", i, scenario.output, actual)
}
}
}
func TestDiscriminatorHTTPHeader(t *testing.T) {
testDiscriminatorHTTPHeader(t)
}
func BenchmarkDiscriminatorHTTPHeader(b *testing.B) {
for i := 0; i < b.N; i++ {
testDiscriminatorHTTPHeader(b)
}
}
func TestExtractSamples(t *testing.T) {
var (
goodMetricFamily1 = &dto.MetricFamily{
Name: proto.String("foo"),
Help: proto.String("Help for foo."),
Type: dto.MetricType_COUNTER.Enum(),
Metric: []*dto.Metric{
&dto.Metric{
Counter: &dto.Counter{
Value: proto.Float64(4711),
},
},
},
}
goodMetricFamily2 = &dto.MetricFamily{
Name: proto.String("bar"),
Help: proto.String("Help for bar."),
Type: dto.MetricType_GAUGE.Enum(),
Metric: []*dto.Metric{
&dto.Metric{
Gauge: &dto.Gauge{
Value: proto.Float64(3.14),
},
},
},
}
badMetricFamily = &dto.MetricFamily{
Name: proto.String("bad"),
Help: proto.String("Help for bad."),
Type: dto.MetricType(42).Enum(),
Metric: []*dto.Metric{
&dto.Metric{
Gauge: &dto.Gauge{
Value: proto.Float64(2.7),
},
},
},
}
opts = &DecodeOptions{
Timestamp: 42,
}
)
got, err := ExtractSamples(opts, goodMetricFamily1, goodMetricFamily2)
if err != nil {
t.Error("Unexpected error from ExtractSamples:", err)
}
want := model.Vector{
&model.Sample{Metric: model.Metric{model.MetricNameLabel: "foo"}, Value: 4711, Timestamp: 42},
&model.Sample{Metric: model.Metric{model.MetricNameLabel: "bar"}, Value: 3.14, Timestamp: 42},
}
if !reflect.DeepEqual(got, want) {
t.Errorf("unexpected samples extracted, got: %v, want: %v", got, want)
}
got, err = ExtractSamples(opts, goodMetricFamily1, badMetricFamily, goodMetricFamily2)
if err == nil {
t.Error("Expected error from ExtractSamples")
}
if !reflect.DeepEqual(got, want) {
t.Errorf("unexpected samples extracted, got: %v, want: %v", got, want)
}
}

2
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_0 generated vendored
View File

@ -1,2 +0,0 @@

6
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_1 generated vendored
View File

@ -1,6 +0,0 @@
minimal_metric 1.234
another_metric -3e3 103948
# Even that:
no_labels{} 3
# HELP line for non-existing metric will be ignored.

12
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_2 generated vendored
View File

@ -1,12 +0,0 @@
# A normal comment.
#
# TYPE name counter
name{labelname="val1",basename="basevalue"} NaN
name {labelname="val2",basename="base\"v\\al\nue"} 0.23 1234567890
# HELP name two-line\n doc str\\ing
# HELP name2 doc str"ing 2
# TYPE name2 gauge
name2{labelname="val2" ,basename = "basevalue2" } +Inf 54321
name2{ labelname = "val1" , }-Inf

22
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_3 generated vendored
View File

@ -1,22 +0,0 @@
# TYPE my_summary summary
my_summary{n1="val1",quantile="0.5"} 110
decoy -1 -2
my_summary{n1="val1",quantile="0.9"} 140 1
my_summary_count{n1="val1"} 42
# Latest timestamp wins in case of a summary.
my_summary_sum{n1="val1"} 4711 2
fake_sum{n1="val1"} 2001
# TYPE another_summary summary
another_summary_count{n2="val2",n1="val1"} 20
my_summary_count{n2="val2",n1="val1"} 5 5
another_summary{n1="val1",n2="val2",quantile=".3"} -1.2
my_summary_sum{n1="val2"} 08 15
my_summary{n1="val3", quantile="0.2"} 4711
my_summary{n1="val1",n2="val2",quantile="-12.34",} NaN
# some
# funny comments
# HELP
# HELP
# HELP my_summary
# HELP my_summary

10
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_4 generated vendored
View File

@ -1,10 +0,0 @@
# HELP request_duration_microseconds The response latency.
# TYPE request_duration_microseconds histogram
request_duration_microseconds_bucket{le="100"} 123
request_duration_microseconds_bucket{le="120"} 412
request_duration_microseconds_bucket{le="144"} 592
request_duration_microseconds_bucket{le="172.8"} 1524
request_duration_microseconds_bucket{le="+Inf"} 2693
request_duration_microseconds_sum 1.7560473e+06
request_duration_microseconds_count 2693

1
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_0 generated vendored
View File

@ -1 +0,0 @@
bla 3.14

1
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_1 generated vendored
View File

@ -1 +0,0 @@
metric{label="\t"} 3.14

1
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_10 generated vendored
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@ -1 +0,0 @@
metric{label="bla"} 3.14 2 3

1
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_11 generated vendored
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@ -1 +0,0 @@
metric{label="bla"} blubb

3
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_12 generated vendored
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@ -1,3 +0,0 @@
# HELP metric one
# HELP metric two

3
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_13 generated vendored
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@ -1,3 +0,0 @@
# TYPE metric counter
# TYPE metric untyped

3
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_14 generated vendored
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@ -1,3 +0,0 @@
metric 4.12
# TYPE metric counter

2
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_15 generated vendored
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@ -1,2 +0,0 @@
# TYPE metric bla

2
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_16 generated vendored
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@ -1,2 +0,0 @@
# TYPE met-ric

1
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_17 generated vendored
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@ -1 +0,0 @@
@invalidmetric{label="bla"} 3.14 2

1
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_18 generated vendored
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@ -1 +0,0 @@
{label="bla"} 3.14 2

3
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_19 generated vendored
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@ -1,3 +0,0 @@
# TYPE metric histogram
metric_bucket{le="bla"} 3.14

3
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_2 generated vendored
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@ -1,3 +0,0 @@
metric{label="new
line"} 3.14

1
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_3 generated vendored
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@ -1 +0,0 @@
metric{@="bla"} 3.14

1
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_4 generated vendored
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@ -1 +0,0 @@
metric{__name__="bla"} 3.14

1
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_5 generated vendored
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@ -1 +0,0 @@
metric{label+="bla"} 3.14

1
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_6 generated vendored
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@ -1 +0,0 @@
metric{label=bla} 3.14

3
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_7 generated vendored
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@ -1,3 +0,0 @@
# TYPE metric summary
metric{quantile="bla"} 3.14

1
vendor/github.com/prometheus/common/expfmt/fuzz/corpus/from_test_parse_error_8 generated vendored
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@ -1 +0,0 @@
metric{label="bla"+} 3.14

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