k8s-wordpress

将数据库的密码写入wordpress的yaml配置文件不行，额外输入可以初始化数据成功，好奇怪

mysql 配置yamL

cat mysql.yml
---
apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: mysql-deploy
  namespace: blog
  labels:
    app: mysql
spec:
  template:
    metadata:
      labels:
        app: mysql
    spec:
      containers:
      - name: mysql
        image: mysql:5.7
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 3306
          name: dbport
        env:
        - name: MYSQL_ROOT_PASSWORD
          value: rootPassW0rd
        - name: MYSQL_DATABASE
          value: wordpress
        - name: MYSQL_USER
          value: wordpress
        - name: MYSQL_PASSWORD
          value: wordpress

---
apiVersion: v1
kind: Service
metadata:
  name: mysql
  namespace: blog
spec:
  selector:
    app: mysql
  ports:
  - name: mysqlport
    protocol: TCP
    port: 3306
    targetPort: dbport

wordpress 配置yaml

 cat wordpress.yml
apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: wordpress-deploy
  namespace: blog
  labels:
    app: wordpress
spec:
  template:
    metadata:
      labels:
        app: wordpress
    spec:
      containers:
      - name: wordpress
        image: wordpress
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 80
          name: wdport
---
apiVersion: v1
kind: Service
metadata:
  name: wordpress
  namespace: blog
spec:
  selector:
    app: wordpress
  type: NodePort
  ports:
  - name: wordpressport
    protocol: TCP
    port: 80
    nodePort: 32255
    targetPort: wdport

通过访问任意宿主机的3225端口

未成功的配置文件

---
apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: mysql-deploy
  namespace: blog
  labels:
    app: mysql
spec:
  template:
    metadata:
      labels:
        app: mysql
    spec:
      containers:
      - name: mysql
        image: mysql:5.7
        ports:
        - containerPort: 3306
          name: dbport
        env:
        - name: MYSQL_ROOT_PASSWORD
          value: rootPassW0rd
        - name: MYSQL_DATABASE
          value: wordpress
        - name: MYSQL_USER
          value: wordpress
        - name: MYSQL_PASSWORD
          value: wordpress
        volumeMounts:
        - name: db
          mountPath: /var/lib/mysql
      volumes:
      - name: db
        hostPath:
          path: /var/lib/mysql

---
apiVersion: v1
kind: Service
metadata:
  name: mysql
  namespace: blog
spec:
  selector:
    app: mysql
  ports:
  - name: mysqlport
    protocol: TCP
    port: 3306
    targetPort: dbport

---
apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: wordpress-deploy
  namespace: blog
  labels:
    app: wordpress
spec:
  revisionHistoryLimit: 10
  minReadySeconds: 5
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 1
  template:
    metadata:
      labels:
        app: wordpress
    spec:
      initContainers:
      - name: init-db
        image: busybox
        command: ['sh', '-c', 'until nslookup mysql; do echo waiting for mysql service; sleep 2; done;']
      containers:
      - name: wordpress
        image: wordpress
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 80
          name: wdport
        env:
        - name: WORDPRESS_DB_HOST
          value: mysql:3306
        - name: WORDPRESS_DB_USER
          value: wordpress
        - name: WORDPRESS_DB_PASSWORD
          value: wordpress
        livenessProbe:
          tcpSocket:
            port: 80
          initialDelaySeconds: 3
          periodSeconds: 3
        readinessProbe:
          tcpSocket:
            port: 80
          initialDelaySeconds: 5
          periodSeconds: 10
        resources:
          limits:
            cpu: 200m
            memory: 200Mi
          requests:
            cpu: 100m
            memory: 100Mi

---
apiVersion: v1
kind: Service
metadata:
  name: wordpress
  namespace: blog
spec:
  selector:
    app: wordpress
  type: NodePort
  ports:
  - name: wordpressport
    protocol: TCP
    port: 80
    nodePort: 32255
    targetPort: wdport