apiVersion: apps/v1
kind: Deployment
metadata:
  name: mysql
spec:
  replicas: 1
  selector:
    matchLabels:
      app: mysql
  template:
    metadata:
      labels:
        app: mysql
    spec:
      containers:
        - name: mysql
          image: mysql:5.6.36
          env:
            - name: MYSQL_ROOT_PASSWORD
              valueFrom:
                configMapKeyRef:
                  name: mysql-config
                  key: MYSQL_ROOT_PASSWORD
          ports:
            - containerPort: 3306
          volumeMounts:
            - mountPath: /var/lib/mysql
              name: data
      volumes:
        - name: data
          persistentVolumeClaim:
            claimName: mysql