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
|
// Copyright 2022 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.
// Simple example of auto-instrumentation by using an HTTP Middleware with relevant metrics.
package main
import (
"log"
"net/http"
"github.com/prometheus/client_golang/examples/middleware/httpmiddleware"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/collectors"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
func main() {
// Create non-global registry.
registry := prometheus.NewRegistry()
// Add go runtime metrics and process collectors.
registry.MustRegister(
collectors.NewGoCollector(),
collectors.NewProcessCollector(collectors.ProcessCollectorOpts{}),
)
// Expose /metrics HTTP endpoint using the created custom registry.
http.Handle(
"/metrics",
httpmiddleware.New(
registry, nil).
WrapHandler("/metrics", promhttp.HandlerFor(
registry,
promhttp.HandlerOpts{}),
))
log.Fatalln(http.ListenAndServe(":8080", nil))
}
|
