k8s部署prometheus之kube-state-metrics

1. 说明

   使用的镜像版本为bitnami/kube-state-metrics：2.2.0
   该组件与kubernetes的版本相对应
   

2. 部署kube-state-metrics组件

   kubectl apply -f rbac.yaml
   kubectl apply -f deployment.yaml
   

   rbac.yaml文件

   ---
   apiVersion: rbac.authorization.k8s.io/v1
   kind: ClusterRoleBinding
   metadata:
     name: monitoring-kube-state-metrics
   roleRef:
     apiGroup: rbac.authorization.k8s.io
     kind: ClusterRole
     name: view
   subjects:
   - kind: ServiceAccount
     name: kube-state-metrics #该账号手动在kubesphere的monitoring项目中添加账号
     namespace: monitoring
   

   deployment.yaml文件

   ---
   apiVersion: apps/v1
   kind: Deployment
   metadata:
     name: kube-state-metrics
     namespace: monitoring
   spec:
     replicas: 1
     selector:
       matchLabels:
         app: kube-state-metrics
     template:
       metadata:
         labels:
           app: kube-state-metrics
       spec:
         serviceAccountName: kube-state-metrics #与rbac中的账号一致
         imagePullSecrets:
           - name: shu-cn
         containers:
         - name: kube-state-metrics
           # 官方镜像 bitnami/kube-state-metrics：2.2.0
           image: shu.cn/prom/kube-state-metrics:2.2.0
           args:
             - '--resources=pods,statefulsets,deployments,namespaces' #指定收集的资源对象
           resources:
             requests:
               cpu: 100m
               memory: 200Mi
             limits:
               cpu: 150m
               memory: 300Mi
           ports:
           - containerPort: 8080
   
   ---
   apiVersion: v1
   kind: Service
   metadata:
     annotations:
       prometheus.io/scrape: 'true'
     name: svc-kube-state-metrics
     namespace: monitoring
     labels:
       app: kube-state-metrics
   spec:
     type: NodePort
     ports:
     - name: tcp-8080
       port: 8080
       targetPort: 8080
       nodePort: 38080
       protocol: TCP
     selector:
       app: kube-state-metrics
   
   

3. 浏览器访问检测是否获取到数据

   http://节点IP:38080/metrics