apiVersion: v1
kind: Service
metadata:
  name: mariadb
spec:
  ports:
  - name: mysql
    port: 3306
  - name: metrics
    port: 9104
  selector:
    app: mariadb
  type: LoadBalancer
  loadBalancerIP: 172.23.255.4
---
apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
kind: Deployment
metadata:
  name: mariadb
spec:
  selector:
    matchLabels:
      app: mariadb
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: mariadb
    spec:
      containers:
      - image: docker-registry.lan/mariadb:arm64
        name: mariadb
        imagePullPolicy: Always
        env:
# Use secret in real usage
        - name: MYSQL_ROOT_PASSWORD
          value: 54MzzfHHTA9qJX64Pvdn
        ports:
        - containerPort: 3306
          name: mariadb
        volumeMounts:
        - name: mariadb-persistent-storage
          mountPath: /var/lib/mysql
        resources:
          requests:
            memory: "256Mi"
            cpu: "250m"
          limits:
            memory: "1500Mi"
            cpu: "2000m"
      - image: docker-registry.lan/mariadb-prometheus-exporter:arm64
        name: mariadb-prometheus-exporter
        imagePullPolicy: Always
        ports:
        - containerPort: 9104
          name: metrics
        resources:
          requests:
            memory: "24Mi"
            cpu: "50m"
          limits:
            memory: "128Mi"
            cpu: "100m"
      volumes:
      - name: mariadb-persistent-storage
        persistentVolumeClaim:
          claimName: mariadb-pv-claim
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mariadb-pv-claim
  annotations:
    volume.beta.kubernetes.io/storage-class: nfs-ssd
spec:
  storageClassName: nfs-ssd
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 20Gi