Prometheus采集kubernetes节点数据实战

创建SA

[root@k8smaster1 prometheus]# cat kube-state-metrics.yaml 
apiVersion: v1
kind: ServiceAccount
metadata:
  name: kube-state-metrics
  namespace: kube-system

创建clusterrole

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: kube-sate-metrics
rules:
- apiGroups: [""]
  resources: ["nodes","pods","services","resourcequotas","replicationcontrollers","limitranges","persistentvolumeclaims","persistentvolumes","namespaces","endpoints"]
  verbs: ["list","watch"]
- apiGroups: ["extensions"]
  resources: ["daemonsets","deployments","replicasets"]
  verbs: ["list","watch"]
- apiGroups: ["apps"]
  resources: ["statefulsets"]
  verbs: ["list","watch"]
- apiGroups: ["batch"]
  resources: ["cronjobs","jobs"]
  verbs: ["list","watch"]
- apiGroups: ["autoscaling"]
  resources: ["horizontalpodautoscalers"]
  verbs: ["list","watch"]

创建clusterrolebinding，关联SA和clusterrole

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: kube-state-metrics
roleRef:
  apiGroup: rbac.authorization.k8s.io
  name: kube-state-metrics
  kind: ClusterRole
subjects:
  name: kube-state-metrics
  kind: ServiceAccount
  namespace: kube-system

创建Pod

apiVersion: apps/v1
kind: Deployment
metadata:
  name: kube-state-metric
  namespace: kube-system
spec:
  replicas: 1
  selector:
    matchLabels:
      app: kube-state-metrics
  template:
    metadata:
      labels:
        app: kube-state-metrics
    spec:
      serviceAccountName: kube-state-metrics
      containers:
      - name: kube-state-metrics
        image: quay.io/coreos/kube-state-metrics:v1.9.0
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 8080

创建Service，对外暴露端口

apiVersion: v1
kind: Service
metadata:
  name: kube-state-metrics
  namespace: kube-system
  labels:
    app: kube-state-metrics
  annotations:
    prometheus.io/scrape: 'true'
spec:
  selector:
    app: kube-state-metrics
  ports:
  - name: kube-state-metrics
    port: 8080
    protocol: TCP