mirror of
https://gitee.com/milvus-io/milvus.git
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130 lines
3.3 KiB
Go
130 lines
3.3 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package http
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import (
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"fmt"
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"net/http"
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"os"
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"strconv"
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"time"
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/internal/http/healthz"
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"github.com/milvus-io/milvus/pkg/eventlog"
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"github.com/milvus-io/milvus/pkg/log"
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"github.com/milvus-io/milvus/pkg/util/expr"
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"github.com/milvus-io/milvus/pkg/util/paramtable"
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)
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const (
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DefaultListenPort = "9091"
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ListenPortEnvKey = "METRICS_PORT"
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)
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var (
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metricsServer *http.ServeMux
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server *http.Server
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)
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// Provide alias for native http package
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// avoiding import alias when using http package
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type (
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ResponseWriter = http.ResponseWriter
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Request = http.Request
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)
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type Handler struct {
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Path string
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HandlerFunc http.HandlerFunc
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Handler http.Handler
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}
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func registerDefaults() {
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Register(&Handler{
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Path: LogLevelRouterPath,
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HandlerFunc: func(w http.ResponseWriter, req *http.Request) {
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log.Level().ServeHTTP(w, req)
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},
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})
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Register(&Handler{
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Path: HealthzRouterPath,
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Handler: healthz.Handler(),
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})
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Register(&Handler{
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Path: EventLogRouterPath,
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Handler: eventlog.Handler(),
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})
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Register(&Handler{
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Path: ExprPath,
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Handler: http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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code := req.URL.Query().Get("code")
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auth := req.URL.Query().Get("auth")
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output, err := expr.Exec(code, auth)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte(fmt.Sprintf(`{"msg": "failed to execute expression, %s"}`, err.Error())))
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return
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}
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w.WriteHeader(http.StatusOK)
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w.Write([]byte(fmt.Sprintf(`{"output": "%s"}`, output)))
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}),
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})
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}
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func Register(h *Handler) {
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if metricsServer == nil {
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if paramtable.Get().HTTPCfg.EnablePprof.GetAsBool() {
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metricsServer = http.DefaultServeMux
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} else {
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metricsServer = http.NewServeMux()
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}
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}
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if h.HandlerFunc != nil {
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metricsServer.HandleFunc(h.Path, h.HandlerFunc)
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return
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}
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if h.Handler != nil {
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metricsServer.Handle(h.Path, h.Handler)
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}
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}
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func ServeHTTP() {
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registerDefaults()
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go func() {
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bindAddr := getHTTPAddr()
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log.Info("management listen", zap.String("addr", bindAddr))
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server = &http.Server{Handler: metricsServer, Addr: bindAddr, ReadTimeout: 10 * time.Second}
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if err := server.ListenAndServe(); err != nil {
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log.Error("handle metrics failed", zap.Error(err))
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}
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}()
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}
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func getHTTPAddr() string {
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port := os.Getenv(ListenPortEnvKey)
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_, err := strconv.Atoi(port)
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if err != nil {
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return fmt.Sprintf(":%s", DefaultListenPort)
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}
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paramtable.Get().Save(paramtable.Get().CommonCfg.MetricsPort.Key, port)
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return fmt.Sprintf(":%s", port)
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}
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