apiVersion: apps/v1
kind: Deployment
metadata:
  name: mariadb-deployment
spec:
  selector:
    matchLabels:
      app: mariadb
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: mariadb
    spec:
      containers:
        - name: mariadb
          image: mariadb:10.5.2
          env:
            - name: MYSQL_DATABASE
              valueFrom:
                secretKeyRef:
                  name: mariadb-credentials-secret
                  key: database
            - name: MYSQL_USER
              valueFrom:
                secretKeyRef:
                  name: mariadb-credentials-secret
                  key: username
            - name: MYSQL_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: mariadb-credentials-secret
                  key: password
            - name: MYSQL_RANDOM_ROOT_PASSWORD
              value: "yes"
          ports:
            - name: mariadb
              containerPort: 3306
          volumeMounts:
            - name: mariadb-pvc
              mountPath: /var/lib/mysql
      volumes:
        - name: mariadb-pvc
          persistentVolumeClaim:
            claimName: mariadb-pvc
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mariadb-pvc
  labels:
    app: mariadb
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 20Gi
---
apiVersion: v1
kind: Service
metadata:
  name: mariadb
  labels:
    app: mariadb
spec:
  selector:
    app: mariadb
  ports:
    - name: mariadb
      port: 3306