mirror of
https://gitee.com/rainbond/Rainbond.git
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105 lines
3.4 KiB
Go
105 lines
3.4 KiB
Go
// Copyright (C) 2014-2018 Goodrain Co., Ltd.
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// RAINBOND, Application Management Platform
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version. For any non-GPL usage of Rainbond,
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// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
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// must be obtained first.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package monitor
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import (
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"context"
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"net/http"
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"github.com/goodrain/rainbond/worker/master"
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"github.com/goodrain/rainbond/cmd/worker/option"
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httputil "github.com/goodrain/rainbond/util/http"
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"github.com/goodrain/rainbond/worker/appm/controller"
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"github.com/goodrain/rainbond/worker/discover"
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"github.com/goodrain/rainbond/worker/monitor/collector"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promhttp"
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"github.com/prometheus/common/log"
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"github.com/sirupsen/logrus"
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)
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//ExporterManager app resource exporter
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type ExporterManager struct {
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ctx context.Context
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cancel context.CancelFunc
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config option.Config
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stopChan chan struct{}
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masterController *master.Controller
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controllermanager *controller.Manager
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}
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//NewManager return *NewManager
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func NewManager(c option.Config, masterController *master.Controller, controllermanager *controller.Manager) *ExporterManager {
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ctx, cancel := context.WithCancel(context.Background())
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return &ExporterManager{
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ctx: ctx,
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cancel: cancel,
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config: c,
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stopChan: make(chan struct{}),
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masterController: masterController,
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controllermanager: controllermanager,
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}
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}
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func (t *ExporterManager) handler(w http.ResponseWriter, r *http.Request) {
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registry := prometheus.NewRegistry()
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registry.MustRegister(collector.New(t.masterController, t.controllermanager))
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gatherers := prometheus.Gatherers{
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prometheus.DefaultGatherer,
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registry,
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}
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// Delegate http serving to Prometheus client library, which will call collector.Collect.
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h := promhttp.HandlerFor(gatherers, promhttp.HandlerOpts{})
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h.ServeHTTP(w, r)
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}
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//Start 启动
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func (t *ExporterManager) Start() error {
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http.HandleFunc(t.config.PrometheusMetricPath, t.handler)
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http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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w.Write([]byte(`<html>
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<head><title>Worker exporter</title></head>
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<body>
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<h1>Worker exporter</h1>
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<p><a href='` + t.config.PrometheusMetricPath + `'>Metrics</a></p>
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</body>
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</html>
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`))
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})
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http.HandleFunc("/worker/health", func(w http.ResponseWriter, r *http.Request) {
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healthStatus := discover.HealthCheck()
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if healthStatus["status"] != "health" {
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httputil.ReturnError(r, w, 400, "worker service unusual")
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}
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httputil.ReturnSuccess(r, w, healthStatus)
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})
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log.Infoln("Listening on", t.config.Listen)
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go func() {
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log.Fatal(http.ListenAndServe(t.config.Listen, nil))
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}()
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logrus.Info("start app resource exporter success.")
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return nil
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}
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//Stop 停止
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func (t *ExporterManager) Stop() {
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t.cancel()
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}
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