59 lines
1.7 KiB
Go
59 lines
1.7 KiB
Go
// 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.
|
|
|
|
//go:build go1.17
|
|
// +build go1.17
|
|
|
|
// A minimal example of how to include Prometheus instrumentation.
|
|
package main
|
|
|
|
import (
|
|
"flag"
|
|
"fmt"
|
|
"log"
|
|
"net/http"
|
|
"regexp"
|
|
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
"github.com/prometheus/client_golang/prometheus/collectors"
|
|
"github.com/prometheus/client_golang/prometheus/promhttp"
|
|
)
|
|
|
|
var addr = flag.String("listen-address", ":8080", "The address to listen on for HTTP requests.")
|
|
|
|
func main() {
|
|
flag.Parse()
|
|
|
|
// Create a new registry.
|
|
reg := prometheus.NewRegistry()
|
|
|
|
// Add Go module build info.
|
|
reg.MustRegister(collectors.NewBuildInfoCollector())
|
|
reg.MustRegister(collectors.NewGoCollector(
|
|
collectors.WithGoCollectorRuntimeMetrics(collectors.GoRuntimeMetricsRule{Matcher: regexp.MustCompile("/.*")}),
|
|
))
|
|
|
|
// Expose the registered metrics via HTTP.
|
|
http.Handle("/metrics", promhttp.HandlerFor(
|
|
reg,
|
|
promhttp.HandlerOpts{
|
|
OpenMetricsOptions: promhttp.OpenMetricsOptions{
|
|
// Opt into OpenMetrics to support exemplars.
|
|
Enable: true,
|
|
},
|
|
},
|
|
))
|
|
fmt.Println("Hello world from new Go Collector!")
|
|
log.Fatal(http.ListenAndServe(*addr, nil))
|
|
}
|