-
Notifications
You must be signed in to change notification settings - Fork 764
/
exporter.go
101 lines (89 loc) · 3.28 KB
/
exporter.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
// Copyright (C) 2014-2018 Goodrain Co., Ltd.
// RAINBOND, Application Management Platform
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package monitor
import (
"context"
"net/http"
"github.com/goodrain/rainbond/worker/master"
"github.com/Sirupsen/logrus"
"github.com/goodrain/rainbond/cmd/worker/option"
httputil "github.com/goodrain/rainbond/util/http"
"github.com/goodrain/rainbond/worker/discover"
"github.com/goodrain/rainbond/worker/monitor/collector"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/prometheus/common/log"
)
//ExporterManager app resource exporter
type ExporterManager struct {
ctx context.Context
cancel context.CancelFunc
config option.Config
stopChan chan struct{}
masterController *master.Controller
}
//NewManager return *NewManager
func NewManager(c option.Config, masterController *master.Controller) *ExporterManager {
ctx, cancel := context.WithCancel(context.Background())
return &ExporterManager{
ctx: ctx,
cancel: cancel,
config: c,
stopChan: make(chan struct{}),
masterController: masterController,
}
}
func (t *ExporterManager) handler(w http.ResponseWriter, r *http.Request) {
registry := prometheus.NewRegistry()
registry.MustRegister(collector.New(t.masterController))
gatherers := prometheus.Gatherers{
prometheus.DefaultGatherer,
registry,
}
// Delegate http serving to Prometheus client library, which will call collector.Collect.
h := promhttp.HandlerFor(gatherers, promhttp.HandlerOpts{})
h.ServeHTTP(w, r)
}
//Start 启动
func (t *ExporterManager) Start() error {
http.HandleFunc(t.config.PrometheusMetricPath, prometheus.InstrumentHandlerFunc("metrics", t.handler))
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte(`<html>
<head><title>Worker exporter</title></head>
<body>
<h1>Worker exporter</h1>
<p><a href='` + t.config.PrometheusMetricPath + `'>Metrics</a></p>
</body>
</html>
`))
})
http.HandleFunc("/worker/health", func(w http.ResponseWriter, r *http.Request) {
healthStatus := discover.HealthCheck()
if healthStatus["status"] != "health" {
httputil.ReturnError(r, w, 400, "worker service unusual")
}
httputil.ReturnSuccess(r, w, healthStatus)
})
log.Infoln("Listening on", t.config.Listen)
go func() {
log.Fatal(http.ListenAndServe(t.config.Listen, nil))
}()
logrus.Info("start app resource exporter success.")
return nil
}
//Stop 停止
func (t *ExporterManager) Stop() {
t.cancel()
}