mariadb-deployment.yaml

apiVersion: v1
kind: Service
metadata:
  name: mariadb
  namespace: k8s-ronymesquita-site
  labels:
    app: wordpress
spec:
  ports:
    - port: 3306
      name: db
  selector:
    app: wordpress
    tier: mariadb
  type: ClusterIP
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mariadb-pv-claim
  namespace: k8s-ronymesquita-site
  labels:
    app: wordpress
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 20Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: mariadb
  namespace: k8s-ronymesquita-site
  labels:
    app: wordpress
spec:
  selector:
    matchLabels:
      app: wordpress
      tier: mariadb
  strategy:
    type: Recreate
  template:
    metadata:
      namespace: k8s-ronymesquita-site
      labels:
        app: wordpress
        tier: mariadb
    spec:
      containers:
        - image: mariadb:10.4.4
          name: mariadb
          env:
            - name: MYSQL_ROOT_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: mariadb-secret
                  key: MYSQL_ROOT_PASSWORD
            - name: MYSQL_DATABASE
              valueFrom:
                secretKeyRef:
                  name: mariadb-secret
                  key: MYSQL_DATABASE
            - name: MYSQL_USER
              valueFrom:
                secretKeyRef:
                  name: mariadb-secret
                  key: MYSQL_USER
            - name: MYSQL_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: mariadb-secret
                  key: MYSQL_PASSWORD
          ports: 
            - containerPort: 3306
              name: mariadb
          volumeMounts:
            - name: mariadb-persistent-storage
              mountPath: /var/lib/mysql
      volumes:
        - name: mariadb-persistent-storage
          persistentVolumeClaim:
            claimName: mariadb-pv-claim