apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mariadb
  labels:
    app: mariadb
spec:
  replicas: 1
  serviceName: mariadb
  selector:
    matchLabels:
      app: mariadb
  template:
    metadata:
      labels:
        app: mariadb
    spec:
      containers:
      - name: mariadb
        image: mariadb
        imagePullPolicy: Never
        volumeMounts:
        - name: mariadb
          mountPath: /var/lib/mysql
      volumes:
      - name: mariadb
        persistentVolumeClaim:
          claimName: mariadb