介绍就绪指针

与存活指针不同,如果容器未通过准备检查,则不会被终止或重新启动.

apiVersion: v1
kind: ReplicationController
metadata:
  name: kubia
spec:
  replicas: 3
  selector:
    app: kubia
  template:
    metadata:
      labels:
        app: kubia
    spec:
      containers:
      - name: kubia
        image: luksa/kubia
        ports:
        - name: http
          containerPort: 8080
        readinessProbe:
          exec:
            command:
            - ls
            - /var/ready

只有当存在/var/ready这个文件时,pod才能被使用

kubectl exec kubia-22f2k -- touch /var/ready