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SomefiveandGitHub
4c56fac228
* Fix: workqueue & controller client metrics not registered correctly Signed-off-by: Somefive <yd219913@alibaba-inc.com> * Fix: support merging metrics registry Signed-off-by: Somefive <yd219913@alibaba-inc.com> Signed-off-by: Somefive <yd219913@alibaba-inc.com>
52 lines
1.4 KiB
Go
52 lines
1.4 KiB
Go
/*
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Copyright 2022 The KubeVela 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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package metrics
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import (
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"github.com/prometheus/client_golang/prometheus"
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dto "github.com/prometheus/client_model/go"
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"k8s.io/component-base/metrics/legacyregistry"
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"sigs.k8s.io/controller-runtime/pkg/metrics"
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)
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// multiRegistererGatherer mixes multiple gatherer
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type multiRegistererGatherer struct {
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prometheus.Registerer
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gatherers []prometheus.Gatherer
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}
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func (in *multiRegistererGatherer) Gather() ([]*dto.MetricFamily, error) {
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var mfs []*dto.MetricFamily
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for _, g := range in.gatherers {
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mf, err := g.Gather()
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if err != nil {
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return nil, err
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}
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mfs = append(mfs, mf...)
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}
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return mfs, nil
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}
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func init() {
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r := metrics.Registry
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// merge multiple registry
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metrics.Registry = &multiRegistererGatherer{
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Registerer: r,
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gatherers: []prometheus.Gatherer{r, legacyregistry.DefaultGatherer},
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}
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}
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