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examples: Add Version Collector example
Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com>
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Arthur Silva Sens
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Jan 12, 2024
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// 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. | ||
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//go:build go1.17 | ||
// +build go1.17 | ||
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// A minimal example of how to include Prometheus instrumentation. | ||
package main | ||
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import ( | ||
"flag" | ||
"fmt" | ||
"log" | ||
"net/http" | ||
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"github.com/prometheus/client_golang/prometheus" | ||
"github.com/prometheus/client_golang/prometheus/collectors/version" | ||
"github.com/prometheus/client_golang/prometheus/promhttp" | ||
) | ||
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var addr = flag.String("listen-address", ":8080", "The address to listen on for HTTP requests.") | ||
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// Build using ldflags, for example: | ||
// go build -ldflags "-X github.com/prometheus/common/version.Version=1.0.0 -X github.com/prometheus/common/version.Branch=abc123" . | ||
func main() { | ||
flag.Parse() | ||
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// Create a new registry. | ||
reg := prometheus.NewRegistry() | ||
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// Register version collector. | ||
reg.MustRegister(version.NewCollector("example")) | ||
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// Expose the registered metrics via HTTP. | ||
http.Handle("/metrics", promhttp.HandlerFor( | ||
reg, | ||
promhttp.HandlerOpts{}, | ||
)) | ||
fmt.Println("Hello world from new Version Collector!") | ||
log.Fatal(http.ListenAndServe(*addr, nil)) | ||
} |