apiVersion: v1
kind: PersistentVolume
metadata:
  name: mysql-pv
  namespace: battleship-app
spec:
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteOnce
  hostPath:
    path: /mnt/data/mysql
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mysql-pvc
  namespace: battleship-app
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: battleship-mysql
  namespace: battleship-app
spec:
  serviceName: "mysql"
  replicas: 1
  selector:
    matchLabels:
      app: battleship-mysql
  template:
    metadata:
      labels:
        app: battleship-mysql
    spec:
      containers:
      - name: battleship-mysql
        image: mysql:8.0.30
        ports:
        - containerPort: 3306
        env:
        - name: MYSQL_ROOT_PASSWORD
          value: somepassword
        - name: MYSQL_DATABASE
          value: battleship
        volumeMounts:
        - name: mysql-data
          mountPath: /var/lib/mysql
      volumes:
      - name: mysql-data
        persistentVolumeClaim:
          claimName: mysql-pvc