创建一个Pod---liveness-exec-pod

apiVersion: v1
kind: Pod
metadata:
  name: liveness-exec-pod
  namespace: default
spec:
  containers:
  - name: liveness-exec-container
    image: busybox
    imagePullPolicy: IfNotPresent
    command: ["/bin/sh","-c","touch /tmp/healthy;sleep 30;rm -rf /tmp/healthy;sleep 3600"]
    livenessProbe:
      exec:
        command: ["test","-e","/tmp/healthy"]
      initialDelaySeconds: 1
      periodSeconds: 3

[root@master01 ~]#kubectl apply -f liveness-exec.yaml 
pod/liveness-exec-pod created

[root@master01 ~]#kubectl get pods
NAME                READY   STATUS              RESTARTS   AGE
liveness-exec-pod   0/1     ContainerCreating   0          8s
web                 2/2     Running             0          3d15h

[root@master01 ~]#kubectl describe pods liveness-exec-pod

docker ps -a | grep liveness
docker start 6758c5475c9a