prometheus-operator/internal/metrics/metrics.go

// Copyright 2024 The prometheus-operator 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.

package metrics

import (
	"regexp"

	"github.com/prometheus/client_golang/prometheus"
	"github.com/prometheus/client_golang/prometheus/collectors"
	"github.com/prometheus/client_golang/prometheus/collectors/version"
)

func NewRegistry(program string) *prometheus.Registry {
	r := prometheus.NewRegistry()

	// default registers
	r.MustRegister(
		collectors.NewGoCollector(
			collectors.WithGoCollectorRuntimeMetrics(
				collectors.MetricsGC,
				collectors.MetricsScheduler,
				collectors.MetricsMemory,
				collectors.GoRuntimeMetricsRule{Matcher: regexp.MustCompile(`^/sync/.*`)},
			),
		),
		collectors.NewProcessCollector(collectors.ProcessCollectorOpts{}),
		version.NewCollector(program),
	)
	return r
}