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83 lines
2.7 KiB
Go
83 lines
2.7 KiB
Go
/*
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Copyright 2021 The Kubernetes 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 plugin
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import (
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"sync"
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"k8s.io/apiserver/pkg/util/configmetrics"
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"k8s.io/component-base/metrics"
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"k8s.io/component-base/metrics/legacyregistry"
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)
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const (
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KubeletSubsystem = "kubelet"
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)
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var (
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registerOnce sync.Once
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kubeletCredentialProviderPluginErrors = metrics.NewCounterVec(
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&metrics.CounterOpts{
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Subsystem: KubeletSubsystem,
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Name: "credential_provider_plugin_errors_total",
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Help: "Number of errors from credential provider plugin",
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StabilityLevel: metrics.ALPHA,
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},
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[]string{"plugin_name"},
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)
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kubeletCredentialProviderPluginDuration = metrics.NewHistogramVec(
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&metrics.HistogramOpts{
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Subsystem: KubeletSubsystem,
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Name: "credential_provider_plugin_duration",
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Help: "Duration of execution in seconds for credential provider plugin",
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Buckets: metrics.DefBuckets,
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StabilityLevel: metrics.ALPHA,
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},
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[]string{"plugin_name"},
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)
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// kubeletCredentialProviderConfigInfo provides information about the credential provider configuration.
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// The hash label is typically constant for the lifetime of the kubelet process, changing only when
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// the configuration is updated and the kubelet is restarted.
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kubeletCredentialProviderConfigInfo = metrics.NewDesc(
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metrics.BuildFQName("", KubeletSubsystem, "credential_provider_config_info"),
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"Information about the last applied credential provider configuration with hash as label",
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[]string{"hash"},
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nil,
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metrics.ALPHA,
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"",
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)
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)
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var configHashProvider = configmetrics.NewAtomicHashProvider()
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// registerMetrics registers credential provider metrics.
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func registerMetrics() {
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registerOnce.Do(func() {
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legacyregistry.MustRegister(kubeletCredentialProviderPluginErrors)
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legacyregistry.MustRegister(kubeletCredentialProviderPluginDuration)
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legacyregistry.CustomMustRegister(configmetrics.NewConfigInfoCustomCollector(kubeletCredentialProviderConfigInfo, configHashProvider))
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})
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}
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// recordCredentialProviderConfigHash records the hash of the credential provider configuration
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func recordCredentialProviderConfigHash(configHash string) {
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configHashProvider.SetHashes(configHash)
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}
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