kubernetes initContainers

    init Container 作用是为主容器进行初始化工作，使用 initContainers 字段定义初始化容器。初始化容器运行完成后主容器才会运行。

apiVersion: v1
kind: Pod
metadata:
  name: init-container
spec:
  containers:
  - name: nginx
    image: nginx:1.12
    ports:
    - name: http
      containerPort: 80
    volumeMounts:
    - name: html
      mountPath: /usr/share/nginx/html
  initContainers:
  - name: busybox
    image: busybox:1.28
    command: ["/bin/sh","-c","echo 'html'> /usr/share/nginx/html/index.html"]
    volumeMounts:
    - name: html
      mountPath: /usr/share/nginx/html
  volumes:
  - name: html
    emptyDir: {}