forked from mirror/client_golang
51 lines
1.5 KiB
Go
51 lines
1.5 KiB
Go
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// Copyright 2022 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Simple example of auto-instrumentation by using an HTTP Middleware with relevant metrics.
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package main
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import (
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"log"
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"net/http"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/collectors"
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"github.com/prometheus/client_golang/prometheus/promhttp"
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"github.com/jessicalins/instrumentation-practices-examples/middleware/httpmiddleware"
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)
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func main() {
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// Create non-global registry.
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registry := prometheus.NewRegistry()
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// Add go runtime metrics and process collectors.
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registry.MustRegister(
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collectors.NewGoCollector(),
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collectors.NewProcessCollector(collectors.ProcessCollectorOpts{}),
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)
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// Expose /metrics HTTP endpoint using the created custom registry.
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http.Handle(
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"/metrics",
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httpmiddleware.New(
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registry, nil).
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WrapHandler("/metrics", promhttp.HandlerFor(
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registry,
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promhttp.HandlerOpts{}),
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))
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log.Fatalln(http.ListenAndServe(":8080", nil))
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}
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