知识点记录-K8S中POD的周期

知识点记录-K8S中POD的周期

运行过程:(没画图)

多个INIT容器串行执行->运行MAIN容器(POST START -> RUNNING(LIVNESS PROBE READINESS PROBE) -> PRE STOP)

状态:

PENDIND 已创建POD 未调度或镜像下载中
RUNNING: 已调度某节点, KUBELET已创建容器
SUCCEEDED: POD中容器已停止不重启
FAILED: 有>=1的POD中容器已停止异常
UNKNOWN: 网络调用状态异常

测试

pod-initcontainer.yaml

apiVersion: v1
kind: Pod
metadata:
  name: pod-initcontainer
  namespace: dev
spec:
  containers:
  - name: main-container
    image: nginx:1.18.1
    ports: 
    - name: nginx-port
      containerPort: 80
  initContainers:  # 顺序执行启动initContainers1->启动initContainers2->启动main-container
   - name: initContainers1
     image: busybox:1.30
     command: ['sh', '-c', 'until ping 192.168.1.201 -c 1 ; do echo waiting; sleep 5; done;']
   - name: initContainers2
     image: busybox:1.30
     command: ['sh', '-c', 'until pi