apiVersion: apps/v1
kind: Deployment
metadata: 
  name: mysql-server
spec: # spec do deployment
  replicas: 1

  selector:
    matchLabels:
      app: mysql-server
      tier: db

  template: # referente ao POD
    metadata:
      labels:
        app: mysql-server
        tier: db
    spec: # spec do POD
      containers:
      - image: mysql:5.7
        name: mysql-server
        args:
          - "--ignore-db-dir=lost+found"
        env:
        - name: MYSQL_ROOT_PASSWORD
          #value: root
          valueFrom: 
            secretKeyRef:
              name: mysql-pass
              key: password
        
        ports:
        - containerPort: 3306
        
        volumeMounts: #monta o volume efetivamente
        - name: mysql-persistent-storage
          mountPath: /var/lib/mysql

      volumes: #definição do volume
      - name: mysql-persistent-storage
        persistentVolumeClaim:
          claimName: mysql-pv-claim
