/
metrics-router.go
56 lines (51 loc) · 1.58 KB
/
metrics-router.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
/*
* Minio Cloud Storage, (C) 2018 Minio, Inc.
*
* 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 cmd
import (
"encoding/json"
"net/http"
"github.com/gorilla/mux"
)
const (
prometheusMetricsPath = "/prometheus/metrics"
kvMetricsPath = "/kvstats"
clusterIDPath = "/cluster_id"
)
// registerMetricsRouter - add handler functions for metrics.
func registerMetricsRouter(router *mux.Router) {
// metrics router
metricsRouter := router.NewRoute().PathPrefix(minioReservedBucketPath).Subrouter()
metricsRouter.Handle(prometheusMetricsPath, metricsHandler())
metricsRouter.Methods(http.MethodGet).Path(kvMetricsPath).HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
c := make(chan []byte)
globalDumpKVStatsCh <- c
b := <-c
w.Write(b)
})
metricsRouter.Methods(http.MethodGet).Path(clusterIDPath).HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
c := struct {
UUID string
}{
UUID: clusterID,
}
b, err := json.Marshal(c)
if err != nil {
w.Write([]byte("Error occured when encoding clusterID"))
} else {
w.Write(b)
}
})
}