k8s存储卷mysql故障转移

yum install -y rpcbind nfs-utils
创建共享目录
mkdir /home/sharedir
修改目录权限
chmod 0755 -R sharedir
修改NFS配置文件
vi /etc/exports
/home/sharedir 192.168.2.0(rw,no_root_squash,no_all_squash,sync)
----------------------------

在node节点上查看共享文件目录

yum install -y nfs-utils
showmount -e 192.168.2.120

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pv创建配置
mysql-pv.yaml

apiVersion: v1
kind: PersistentVolume
metadata:
  name: mysql-pv
spec:
  capacity:
    storage: 1Gi
  accessModes:
  - ReadWriteOnce
  nfs:
    path: /home/sharedir/mysqldata
    server: 192.168.2.120

----------------------------------------

pvc创建
mysql-pvc.yaml

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mysql-pvc
spec:
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi

----------------------------------------

部署mysql
mysql.yaml

apiVersion: v1
kind: Service
metadata:
  name: mysql
spec:
  ports:
  - port: 3306
  selector:
    app: mysql
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: mysql
spec:
  selector:
    matchLabels:
      app: mysql
  template:
    metadata:
      labels:
        app: mysql
    spec:
      containers:
      - name: mysql
        image: mysql:5.6
        env:
        - name: MYSQL_ROOT_PASSWORD
          value: password
        ports:
        - name: mysql
          containerPort: 3306
        volumeMounts:
        - name: mysql-persistent-storage
          mountPath: /var/lib/mysql
      volumes:
      - name: mysql-persistent-storage
        persistentVolumeClaim:
          claimName: mysql-pvc

----------------------------------------

进入mysql容器：
kubectl run -it --rm --image=mysql:5.6 --restart=Never mysql-client -- mysql -h mysql -ppassword