319 lines
9.0 KiB
Go
319 lines
9.0 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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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 store
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import (
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"context"
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v1 "k8s.io/api/apps/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/watch"
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clientset "k8s.io/client-go/kubernetes"
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"k8s.io/client-go/tools/cache"
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basemetrics "k8s.io/component-base/metrics"
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"k8s.io/kube-state-metrics/v2/pkg/metric"
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generator "k8s.io/kube-state-metrics/v2/pkg/metric_generator"
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)
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var (
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descDaemonSetAnnotationsName = "kube_daemonset_annotations"
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descDaemonSetAnnotationsHelp = "Kubernetes annotations converted to Prometheus labels."
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descDaemonSetLabelsName = "kube_daemonset_labels"
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descDaemonSetLabelsHelp = "Kubernetes labels converted to Prometheus labels."
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descDaemonSetLabelsDefaultLabels = []string{"namespace", "daemonset"}
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)
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func daemonSetMetricFamilies(allowAnnotationsList, allowLabelsList []string) []generator.FamilyGenerator {
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return []generator.FamilyGenerator{
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*generator.NewFamilyGeneratorWithStability(
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"kube_daemonset_created",
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"Unix creation timestamp",
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metric.Gauge,
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basemetrics.STABLE,
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"",
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wrapDaemonSetFunc(func(d *v1.DaemonSet) *metric.Family {
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ms := []*metric.Metric{}
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if !d.CreationTimestamp.IsZero() {
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ms = append(ms, &metric.Metric{
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LabelKeys: []string{},
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LabelValues: []string{},
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Value: float64(d.CreationTimestamp.Unix()),
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})
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}
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return &metric.Family{
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Metrics: ms,
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}
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}),
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),
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*generator.NewFamilyGeneratorWithStability(
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"kube_daemonset_status_current_number_scheduled",
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"The number of nodes running at least one daemon pod and are supposed to.",
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metric.Gauge,
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basemetrics.STABLE,
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"",
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wrapDaemonSetFunc(func(d *v1.DaemonSet) *metric.Family {
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return &metric.Family{
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Metrics: []*metric.Metric{
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{
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LabelKeys: []string{},
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LabelValues: []string{},
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Value: float64(d.Status.CurrentNumberScheduled),
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},
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},
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}
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}),
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),
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*generator.NewFamilyGeneratorWithStability(
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"kube_daemonset_status_desired_number_scheduled",
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"The number of nodes that should be running the daemon pod.",
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metric.Gauge,
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basemetrics.STABLE,
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"",
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wrapDaemonSetFunc(func(d *v1.DaemonSet) *metric.Family {
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return &metric.Family{
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Metrics: []*metric.Metric{
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{
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LabelKeys: []string{},
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LabelValues: []string{},
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Value: float64(d.Status.DesiredNumberScheduled),
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},
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},
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}
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}),
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),
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*generator.NewFamilyGeneratorWithStability(
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"kube_daemonset_status_number_available",
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"The number of nodes that should be running the daemon pod and have one or more of the daemon pod running and available",
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metric.Gauge,
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basemetrics.STABLE,
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"",
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wrapDaemonSetFunc(func(d *v1.DaemonSet) *metric.Family {
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return &metric.Family{
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Metrics: []*metric.Metric{
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{
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LabelKeys: []string{},
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LabelValues: []string{},
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Value: float64(d.Status.NumberAvailable),
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},
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},
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}
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}),
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),
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*generator.NewFamilyGeneratorWithStability(
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"kube_daemonset_status_number_misscheduled",
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"The number of nodes running a daemon pod but are not supposed to.",
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metric.Gauge,
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basemetrics.STABLE,
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"",
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wrapDaemonSetFunc(func(d *v1.DaemonSet) *metric.Family {
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return &metric.Family{
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Metrics: []*metric.Metric{
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{
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LabelKeys: []string{},
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LabelValues: []string{},
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Value: float64(d.Status.NumberMisscheduled),
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},
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},
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}
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}),
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),
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*generator.NewFamilyGeneratorWithStability(
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"kube_daemonset_status_number_ready",
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"The number of nodes that should be running the daemon pod and have one or more of the daemon pod running and ready.",
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metric.Gauge,
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basemetrics.STABLE,
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"",
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wrapDaemonSetFunc(func(d *v1.DaemonSet) *metric.Family {
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return &metric.Family{
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Metrics: []*metric.Metric{
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{
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LabelKeys: []string{},
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LabelValues: []string{},
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Value: float64(d.Status.NumberReady),
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},
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},
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}
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}),
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),
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*generator.NewFamilyGeneratorWithStability(
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"kube_daemonset_status_number_unavailable",
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"The number of nodes that should be running the daemon pod and have none of the daemon pod running and available",
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metric.Gauge,
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basemetrics.STABLE,
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"",
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wrapDaemonSetFunc(func(d *v1.DaemonSet) *metric.Family {
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return &metric.Family{
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Metrics: []*metric.Metric{
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{
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LabelKeys: []string{},
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LabelValues: []string{},
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Value: float64(d.Status.NumberUnavailable),
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},
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},
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}
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}),
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),
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*generator.NewFamilyGeneratorWithStability(
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"kube_daemonset_status_observed_generation",
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"The most recent generation observed by the daemon set controller.",
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metric.Gauge,
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basemetrics.STABLE,
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"",
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wrapDaemonSetFunc(func(d *v1.DaemonSet) *metric.Family {
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return &metric.Family{
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Metrics: []*metric.Metric{
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{
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LabelKeys: []string{},
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LabelValues: []string{},
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Value: float64(d.Status.ObservedGeneration),
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},
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},
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}
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}),
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),
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*generator.NewFamilyGeneratorWithStability(
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"kube_daemonset_status_updated_number_scheduled",
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"The total number of nodes that are running updated daemon pod",
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metric.Gauge,
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basemetrics.STABLE,
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"",
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wrapDaemonSetFunc(func(d *v1.DaemonSet) *metric.Family {
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return &metric.Family{
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Metrics: []*metric.Metric{
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{
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Value: float64(d.Status.UpdatedNumberScheduled),
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},
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},
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}
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}),
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),
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*generator.NewFamilyGeneratorWithStability(
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"kube_daemonset_metadata_generation",
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"Sequence number representing a specific generation of the desired state.",
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metric.Gauge,
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basemetrics.STABLE,
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"",
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wrapDaemonSetFunc(func(d *v1.DaemonSet) *metric.Family {
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return &metric.Family{
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Metrics: []*metric.Metric{
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{
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LabelKeys: []string{},
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LabelValues: []string{},
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Value: float64(d.Generation),
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},
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},
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}
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}),
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),
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*generator.NewFamilyGeneratorWithStability(
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"kube_daemonset_deletion_timestamp",
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"Unix deletion timestamp",
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metric.Gauge,
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basemetrics.ALPHA,
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"",
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wrapDaemonSetFunc(func(d *v1.DaemonSet) *metric.Family {
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ms := []*metric.Metric{}
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if !d.DeletionTimestamp.IsZero() {
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ms = append(ms, &metric.Metric{
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Value: float64(d.DeletionTimestamp.Unix()),
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})
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}
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return &metric.Family{
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Metrics: ms,
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}
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}),
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),
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*generator.NewFamilyGeneratorWithStability(
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descDaemonSetAnnotationsName,
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descDaemonSetAnnotationsHelp,
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metric.Gauge,
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basemetrics.ALPHA,
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"",
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wrapDaemonSetFunc(func(d *v1.DaemonSet) *metric.Family {
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if len(allowAnnotationsList) == 0 {
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return &metric.Family{}
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}
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annotationKeys, annotationValues := createPrometheusLabelKeysValues("annotation", d.Annotations, allowAnnotationsList)
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return &metric.Family{
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Metrics: []*metric.Metric{
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{
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LabelKeys: annotationKeys,
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LabelValues: annotationValues,
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Value: 1,
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},
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},
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}
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}),
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),
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*generator.NewFamilyGeneratorWithStability(
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descDaemonSetLabelsName,
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descDaemonSetLabelsHelp,
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metric.Gauge,
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basemetrics.STABLE,
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"",
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wrapDaemonSetFunc(func(d *v1.DaemonSet) *metric.Family {
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if len(allowLabelsList) == 0 {
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return &metric.Family{}
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}
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labelKeys, labelValues := createPrometheusLabelKeysValues("label", d.Labels, allowLabelsList)
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return &metric.Family{
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Metrics: []*metric.Metric{
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{
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LabelKeys: labelKeys,
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LabelValues: labelValues,
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Value: 1,
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},
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},
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}
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}),
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),
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}
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}
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func wrapDaemonSetFunc(f func(*v1.DaemonSet) *metric.Family) func(interface{}) *metric.Family {
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return func(obj interface{}) *metric.Family {
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daemonSet := obj.(*v1.DaemonSet)
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metricFamily := f(daemonSet)
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for _, m := range metricFamily.Metrics {
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m.LabelKeys, m.LabelValues = mergeKeyValues(descDaemonSetLabelsDefaultLabels, []string{daemonSet.Namespace, daemonSet.Name}, m.LabelKeys, m.LabelValues)
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}
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return metricFamily
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}
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}
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func createDaemonSetListWatch(kubeClient clientset.Interface, ns string, fieldSelector string) cache.ListerWatcher {
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return &cache.ListWatch{
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ListFunc: func(opts metav1.ListOptions) (runtime.Object, error) {
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opts.FieldSelector = fieldSelector
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return kubeClient.AppsV1().DaemonSets(ns).List(context.TODO(), opts)
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},
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WatchFunc: func(opts metav1.ListOptions) (watch.Interface, error) {
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opts.FieldSelector = fieldSelector
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return kubeClient.AppsV1().DaemonSets(ns).Watch(context.TODO(), opts)
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},
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}
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}
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