一，准备环境：

        参考以往文章

二，部署：

1），各个节点安装NFS

 yum install nfs-utils -y

2），在NFSmaster节点执行以下指令

systemctl enable nfs-server && systemctl start nfs-server

mkdir -p /kube/mysql-db/conf
mkdir -p /kube/mysql-db/data
mkdir -p /kube/mysql-db/logs
mkdir -p /kube/wordpress/www
mkdir -p /kube/wordpress/log

echo "/kube/mysql-db      192.168.142.0/24(rw,sync,no_subtree_check,no_root_squash)" >> /etc/exports
echo "/kube/wordpress     192.168.142.0/24(rw,sync,no_subtree_check,no_root_squash)" >> /etc/exports

其余节点挂载 

3），创建mysql-pv.yaml

apiVersion: v1
kind: PersistentVolume
metadata:
  name: mysql-pv-data
  labels:
    app: mysql-data
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Recycle
  nfs:
    path: /kube/mysql-db/data
    server: 192.168.142.158

---

apiVersion: v1
kind: PersistentVolume
metadata:
  name: mysql-pv-conf
  namespace: wordpress
  labels:
    app: mysql-conf
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Recycle
  nfs:
    path: /kube/mysql-db/conf
    server: 192.168.142.158

---

apiVersion: v1
kind: PersistentVolume
metadata:
  name: mysql-pv-logs
  namespace: wordpress
  labels:
    app: mysql-logs
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Recycle
  nfs:
    path: /kube/mysql-db/logs
    server: 192.168.142.158

4）， 创建 mysql-pvc.yaml

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: mysql-pv-data-claim
  namespace: wordpress
  labels:
    app: mysql
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 2Gi
  selector:
    matchLabels:
      app: mysql-data
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: mysql-pv-conf-claim
  namespace: wordpress
  labels:
    app: mysql
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 2Gi
  selector:
    matchLabels:
      app: mysql-conf
---

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

5）， 创建mysql-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: wordpress-mysql
  namespace: wordpress
  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-pv-data
          mountPath: /var/lib/mysql
        - name: mysql-pv-conf
          mountPath: /etc/mysql/conf.d
        - name: mysql-pv-logs
          mountPath: /logs
      volumes:
      - name: mysql-pv-data
        persistentVolumeClaim:
          claimName: mysql-pv-data-claim
      - name: mysql-pv-conf
        persistentVolumeClaim:
          claimName: mysql-pv-conf-claim
      - name: mysql-pv-logs
        persistentVolumeClaim:
          claimName: mysql-pv-logs-claim

 6），创建wordpress-pv.yaml

apiVersion: v1
kind: PersistentVolume
metadata:
  name: wp-pv-www
  labels:
    app: wordpress-www
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Recycle
  nfs:
    path: /kube/wordpress/www
    server: 192.168.142.158
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: wp-pv-log
  namespace: wordpress
  labels:
    app: wordpress-log
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Recycle
  nfs:
    path: /kube/wordpress/log
    server: 192.168.142.158

7），创建 wordpress-pvc.yaml

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

8）， 创建wordpress-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: wordpress
  namespace: 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: wp-pv-www
          mountPath: /var/www/html
        - name: wp-pv-log
          mountPath: /log

      volumes:
      - name:  wp-pv-log
        persistentVolumeClaim:
          claimName: wp-pv-log-claim
      - name:  wp-pv-www
        persistentVolumeClaim:
          claimName: wp-pv-www-claim

 9），创建wp-svc.yaml

apiVersion: v1
kind: Service
metadata:
  name: wordpress-mysql
  namespace: wordpress
  labels:
    app: wordpress
spec:
  ports:
    - port: 3306
  selector:
    app: wordpress
    tier: mysql
  clusterIP: None
---
apiVersion: v1
kind: Service
metadata:
  name: wordpress
  namespace: wordpress
  labels:
    app: wordpress
spec:
  ports:
    - port: 80
      nodePort: 30011
  selector:
    app: wordpress
    tier: frontend
  type: NodePort

  10）， 修改wp-config-sample.php 

cd /data/docker/www/wordpress/
vim wp-config-sample.php

        修改wp-db.php文件，将mysql_connect替换为mysqli_connect

sed -i "s/mysql_connect/mysqli_connect/g" wp-includes/wp-db.php
        复制wp-config-sample.php为wp-config.php

cp wp-config-sample.php wp-config.php

11），创建ns wordpress

kubectl create ns wordpress

12），执行刚才创建的文件

kubectl apply -f ./

kubectl create secret generic mysql-pass --from-literal='password=Nebula@123'

echo -e "[mysqld]\ndefault-authentication-plugin=mysql_native_password" >> /data/docker/mysql/conf/docker_mysql.cnf

13），查看创建结果

kubectl get pvc,pv,deploy,pod,svc -n wordpress -o wide

14），浏览器访问