k8s集群监控（2）-部署kube-state-metrics对资源对象监控

2022-11-15 1040

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简介： kube-state-metrics对k8s集群中的资源对象监控，包括 pod 、 deployment， service

环境准备

系统Centos 7.9

k8s集群：

版本：1.21.5

节点：

192.168.10.201 master

192.168.10.202 work

部署相关配置文件

kube-state-metrics-rbac.yaml

apiVersion:v1kind:ServiceAccountmetadata:name:kube-state-metricsnamespace:kube-systemlabels:kubernetes.io/cluster-service:"true"addonmanager.kubernetes.io/mode:Reconcile---apiVersion:rbac.authorization.k8s.io/v1kind:ClusterRolemetadata:name:kube-state-metricslabels:kubernetes.io/cluster-service:"true"addonmanager.kubernetes.io/mode:Reconcilerules:-apiGroups:[""]resources:-configmaps-secrets-nodes-pods-services-resourcequotas-replicationcontrollers-limitranges-persistentvolumeclaims-persistentvolumes-namespaces-endpointsverbs:["list","watch"]-apiGroups:["apps"]resources:-statefulsets-daemonsets-deployments-replicasetsverbs:["list","watch"]-apiGroups:["batch"]resources:-cronjobs-jobsverbs:["list","watch"]-apiGroups:["autoscaling"]resources:-horizontalpodautoscalersverbs:["list","watch"]-apiGroups:["networking.k8s.io","extensions"]resources:-ingressesverbs:["list","watch"]-apiGroups:["storage.k8s.io"]resources:-storageclassesverbs:["list","watch"]-apiGroups:["certificates.k8s.io"]resources:-certificatesigningrequestsverbs:["list","watch"]-apiGroups:["policy"]resources:-poddisruptionbudgetsverbs:["list","watch"]---apiVersion:rbac.authorization.k8s.io/v1kind:Rolemetadata:name:kube-state-metrics-resizernamespace:kube-systemlabels:kubernetes.io/cluster-service:"true"addonmanager.kubernetes.io/mode:Reconcilerules:-apiGroups:[""]resources:-podsverbs:["get"]-apiGroups:["extensions","apps"]resources:-deploymentsresourceNames:["kube-state-metrics"]verbs:["get","update"]---apiVersion:rbac.authorization.k8s.io/v1kind:ClusterRoleBindingmetadata:name:kube-state-metricslabels:kubernetes.io/cluster-service:"true"addonmanager.kubernetes.io/mode:ReconcileroleRef:apiGroup:rbac.authorization.k8s.iokind:ClusterRolename:kube-state-metricssubjects:-kind:ServiceAccountname:kube-state-metricsnamespace:kube-system---apiVersion:rbac.authorization.k8s.io/v1kind:RoleBindingmetadata:name:kube-state-metricsnamespace:kube-systemlabels:kubernetes.io/cluster-service:"true"addonmanager.kubernetes.io/mode:ReconcileroleRef:apiGroup:rbac.authorization.k8s.iokind:Rolename:kube-state-metrics-resizersubjects:-kind:ServiceAccountname:kube-state-metricsnamespace:kube-system

kube-state-metrics-deployment.yaml 配置

apiVersion: apps/v1
kind: Deployment
metadata:  name: kube-state-metrics
  namespace: kube-system
  labels:    k8s-app: kube-state-metrics
    kubernetes.io/cluster-service: "true"    addonmanager.kubernetes.io/mode: Reconcile
    version: v1.3.0
spec:  selector:    matchLabels:      k8s-app: kube-state-metrics
      version: v1.3.0
  replicas: 1  template:    metadata:      labels:        k8s-app: kube-state-metrics
        version: v1.3.0
      annotations:        scheduler.alpha.kubernetes.io/critical-pod: ''    spec:      priorityClassName: system-cluster-critical
      serviceAccountName: kube-state-metrics
      containers:      - name: kube-state-metrics
        image: lizhenliang/kube-state-metrics:v1.8.0 
        ports:        - name: http-metrics
          containerPort: 8080        - name: telemetry
          containerPort: 8081        readinessProbe:          httpGet:            path: /healthz
            port: 8080          initialDelaySeconds: 5          timeoutSeconds: 5      - name: addon-resizer
        image: lizhenliang/addon-resizer:1.8.6        resources:          limits:            cpu: 100m
            memory: 30Mi
          requests:            cpu: 100m
            memory: 30Mi
        env:          - name: MY_POD_NAME
            valueFrom:              fieldRef:                fieldPath: metadata.name
          - name: MY_POD_NAMESPACE
            valueFrom:              fieldRef:                fieldPath: metadata.namespace
        volumeMounts:          - name: config-volume
            mountPath: /etc/config
        command:          - /pod_nanny
          - --config-dir=/etc/config
          - --container=kube-state-metrics
          - --cpu=100m
          - --extra-cpu=1m
          - --memory=100Mi
          - --extra-memory=2Mi
          - --threshold=5
          - --deployment=kube-state-metrics
      volumes:        - name: config-volume
          configMap:            name: kube-state-metrics-config
---apiVersion: v1
kind: ConfigMap
metadata:  name: kube-state-metrics-config
  namespace: kube-system
  labels:    k8s-app: kube-state-metrics
    kubernetes.io/cluster-service: "true"    addonmanager.kubernetes.io/mode: Reconcile
data:  NannyConfiguration: |-
    apiVersion: nannyconfig/v1alpha1
    kind: NannyConfiguration

kube-state-metrics-service.yaml 配置

apiVersion: v1
kind: Service
metadata:  name: kube-state-metrics
  namespace: kube-system
  labels:    kubernetes.io/cluster-service: "true"    addonmanager.kubernetes.io/mode: Reconcile
    kubernetes.io/name: "kube-state-metrics"  annotations:    prometheus.io/scrape: 'true'spec:  ports:  - name: http-metrics
    port: 8080    targetPort: http-metrics
    protocol: TCP
  - name: telemetry
    port: 8081    targetPort: telemetry
    protocol: TCP
  selector:    k8s-app: kube-state-metrics

创建 kube-state-metrics 服务

kubectlapply-f.

查看服务启动状态

打开prometheus控制台

k8s集群监控（2）-部署kube-state-metrics对资源对象监控

环境准备

部署相关配置文件

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