Kubernetes ( K8S ) 初始化容器与容器间共享数据

apiVersion: apps/v1
kind: Deployment
metadata:
  name:  zeze-test
spec:
  replicas: 1
  selector:
    matchLabels:
      app: zeze-test
  template:
    metadata:
      labels:
        app: zeze-test
    spec:
      
      # 第1个容器，初始化容器，创建一个html页面
      initContainers: 
      - name: alpine-write
        image: alpine
        volumeMounts:
        - name: zeze-test
          mountPath: /data 
          readOnly: false
        command:
          - sh
          - -c
          - " echo 'Hello, www.linuxhub.cn.' > /data/index.html "

    # 第 2 个容器，业务容器
      containers:
      - name: nignx 
        image: linuxhub/nginx:1.15.5
        ports:
        - containerPort: 80
        volumeMounts:
        - name: zeze-test
          mountPath: /usr/share/nginx/html 
          readOnly: true
      

     # 共同挂载使用的卷
      volumes:
      - name: zeze-test 
        emptyDir: {}

---
kind: Service
apiVersion: v1
metadata:
  name: zeze-test
spec:
  selector:
    app: zeze-test
  ports:
    - protocol: TCP
      port: 80

--- 
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: zeze-test
spec:
  rules:
  - host: k8s-test.linuxhub.cn
    http:
      paths:
      - backend:
          serviceName: zeze-test
          servicePort: 80
        path: /

$ curl http://k8s-test.linuxhub.cn/index.html                                                                                                                           130 ↵
Hello, www.linuxhub.cn.