350 lines
9.9 KiB
Go
350 lines
9.9 KiB
Go
/*
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Copyright 2021 The Kruise 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 store
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import (
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"context"
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"strconv"
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"github.com/openkruise/kruise-api/apps/v1alpha1"
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kruiseclientset "github.com/openkruise/kruise-api/client/clientset/versioned"
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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/util/intstr"
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"k8s.io/apimachinery/pkg/watch"
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"k8s.io/client-go/tools/cache"
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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 = "kruise_daemonset_annotations"
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descDaemonSetAnnotationsHelp = "Kruise annotations converted to Prometheus labels."
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descDaemonSetLabelsName = "kruise_daemonset_labels"
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descDaemonSetLabelsHelp = "Kruise 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.NewFamilyGenerator(
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"kruise_daemonset_created",
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"Unix creation timestamp",
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metric.Gauge,
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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.DaemonSet) *metric.Family {
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ms := []*metric.Metric{}
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if !ds.CreationTimestamp.IsZero() {
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ms = append(ms, &metric.Metric{
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Value: float64(ds.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.NewFamilyGenerator(
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"kruise_daemonset_status_condition",
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"The current status conditions of a daemonset.",
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metric.Gauge,
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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.DaemonSet) *metric.Family {
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ms := make([]*metric.Metric, len(ds.Status.Conditions)*len(conditionStatuses))
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for i, ds := range ds.Status.Conditions {
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conditionMetrics := addConditionMetrics(ds.Status)
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for j, m := range conditionMetrics {
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metric := m
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metric.LabelKeys = []string{"condition", "status"}
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metric.LabelValues = append([]string{string(ds.Type)}, metric.LabelValues...)
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ms[i*len(conditionStatuses)+j] = metric
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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.NewFamilyGenerator(
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"kruise_daemonset_spec_strategy_rollingupdate_max_surge",
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"Maximum number of replicas that can be scheduled above the desired number of replicas during a rolling update of a daemonset.",
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metric.Gauge,
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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.DaemonSet) *metric.Family {
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rollingUpdateMaxSurge := intstr.FromInt(0)
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if ds.Spec.UpdateStrategy.RollingUpdate.MaxSurge != nil {
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rollingUpdateMaxSurge = *ds.Spec.UpdateStrategy.RollingUpdate.MaxSurge
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}
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maxSurge, err := intstr.GetValueFromIntOrPercent(&rollingUpdateMaxSurge, int(ds.Status.DesiredNumberScheduled), true)
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if err != nil {
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panic(err)
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}
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return &metric.Family{
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Metrics: []*metric.Metric{
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{
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Value: float64(maxSurge),
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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.NewFamilyGenerator(
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"kruise_daemonset_spec_strategy_partition",
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"Desired number or percent of Pods in old revisions.",
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metric.Gauge,
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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.DaemonSet) *metric.Family {
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if ds.Spec.UpdateStrategy.RollingUpdate.Partition == nil {
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return &metric.Family{}
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}
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return &metric.Family{
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Metrics: []*metric.Metric{
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{
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LabelKeys: []string{"partition"},
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LabelValues: []string{strconv.Itoa(int(*ds.Spec.UpdateStrategy.RollingUpdate.Partition))},
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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.NewFamilyGenerator(
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"kruise_daemonset_spec_strategy_type",
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"The type of updateStrategy.",
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metric.Gauge,
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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.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{"strategy_type"},
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LabelValues: []string{string(ds.Spec.UpdateStrategy.Type)},
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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.NewFamilyGenerator(
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"kruise_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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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.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(ds.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.NewFamilyGenerator(
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"kruise_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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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.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(ds.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.NewFamilyGenerator(
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"kruise_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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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.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(ds.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.NewFamilyGenerator(
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"kruise_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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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.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(ds.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.NewFamilyGenerator(
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"kruise_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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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.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(ds.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.NewFamilyGenerator(
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"kruise_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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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.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(ds.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.NewFamilyGenerator(
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"kruise_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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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.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(ds.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.NewFamilyGenerator(
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"kruise_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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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.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(ds.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.NewFamilyGenerator(
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"kruise_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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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.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(ds.ObjectMeta.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.NewFamilyGenerator(
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descDaemonSetAnnotationsName,
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descDaemonSetAnnotationsHelp,
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metric.Gauge,
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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.DaemonSet) *metric.Family {
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annotationKeys, annotationValues := createPrometheusLabelKeysValues("annotation", ds.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.NewFamilyGenerator(
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descDaemonSetLabelsName,
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descDaemonSetLabelsHelp,
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metric.Gauge,
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"",
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wrapDaemonSetFunc(func(ds *v1alpha1.DaemonSet) *metric.Family {
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labelKeys, labelValues := createPrometheusLabelKeysValues("label", ds.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(*v1alpha1.DaemonSet) *metric.Family) func(interface{}) *metric.Family {
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return func(obj interface{}) *metric.Family {
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daemonset := obj.(*v1alpha1.DaemonSet)
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metricFamily := f(daemonset)
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for _, m := range metricFamily.Metrics {
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m.LabelKeys = append(descDaemonSetLabelsDefaultLabels, m.LabelKeys...)
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m.LabelValues = append([]string{daemonset.Namespace, daemonset.Name}, 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(kruiseClient kruiseclientset.Interface, ns 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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return kruiseClient.AppsV1alpha1().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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return kruiseClient.AppsV1alpha1().DaemonSets(ns).Watch(context.TODO(), opts)
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},
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}
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}
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