Docker容器與虛擬化技術——Kubernetes詳解之kubernetes部署wordpress

                             Kubernetes詳解——kubernetes部署wordpress

1、NFS依賴包安裝（master及node節點）

    yum install nfs-utils -y
    systemctl enable nfs-server && systemctl start nfs-server

2、爲Master下mysql data和wordpress源碼配置NFS共享目錄

mkdir -p /kube/mysql-db
mkdir -p /kube/wordpress
chown nfsnobody:nfsnobody /kube/mysql-db
chown nfsnobody:nfsnobody /kube/wordpress
chmod 755 /kube/mysql-db
chmod 755 /kube/wordpress
echo -e "/kube/mysql-db    *(rw,sync,no_subtree_check,no_root_squash)" > /etc/exports
echo -e "/kube/wordpress    *(rw,sync,no_subtree_check,no_root_squash)" >> /etc/exports
exportfs -a

3、編輯wordpress.yaml文件

apiVersion: v1
kind: PersistentVolume
metadata:
  name: mysql-pv
  labels:
    app: mysql
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Recycle
  nfs:
    path: /kube/mysql-db
    server: docker3

---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: wp-pv
  labels:
    app: wordpress
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Recycle
  nfs:
    path: /kube/wordpress
    server: docker3

---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: mysql-pv-claim
  labels:
    app: mysql
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 2Gi

---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: wp-pv-claim
  labels:
    app: wordpress
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 2Gi

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: wordpress-mysql
  labels:
    app: wordpress
spec:
  selector:
    matchLabels:
      app: wordpress
      tier: mysql
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: wordpress
        tier: mysql
    spec:
      containers:
      - image: mysql:5.6
        name: mysql
        env:
        - name: MYSQL_ROOT_PASSWORD
          valueFrom:
            secretKeyRef:
              name: mysql-pass
              key: password
        ports:
        - containerPort: 3306
          name: mysql
        volumeMounts:
        - name: mysql-persistent-storage
          mountPath: /var/lib/mysql
      volumes:
      - name: mysql-persistent-storage
        persistentVolumeClaim:
          claimName: mysql-pv-claim

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: wordpress
  labels:
    app: wordpress
spec:
  selector:
    matchLabels:
      app: wordpress
      tier: frontend
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: wordpress
        tier: frontend
    spec:
      containers:
      - image: wordpress:4.8-apache
        name: wordpress
        env:
        - name: WORDPRESS_DB_HOST
          value: wordpress-mysql
        - name: WORDPRESS_DB_PASSWORD
          valueFrom:
            secretKeyRef:
              name: mysql-pass
              key: password
        ports:
        - containerPort: 80
          name: wordpress
        volumeMounts:
        - name: wordpress-persistent-storage
          mountPath: /var/www/html
      volumes:
      - name: wordpress-persistent-storage
        persistentVolumeClaim:
          claimName: wp-pv-claim

---
apiVersion: v1
kind: Service
metadata:
  name: wordpress-mysql
  labels:
    app: wordpress
spec:
  ports:
    - port: 3306
  selector:
    app: wordpress
    tier: mysql
  clusterIP: None

---
apiVersion: v1
kind: Service
metadata:
  name: wordpress
  labels:
    app: wordpress
spec:
  ports:
    - port: 80
      nodePort: 30080
  selector:
    app: wordpress
    tier: frontend
  type: NodePort

4、部署：kubectl create -f wordpress.yaml

登錄頁面：http://192.168.11.157:30080