apiVersion: apps/v1
kind: Deployment
metadata:
  name: postgres
  namespace: my-app
spec:
  replicas: 1
  selector:
    matchLabels:
      app: postgres
  template:
    metadata:
      labels:
        app: postgres
    spec:
      containers:
        - name: postgres
          image: postgres:14
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 5432
          env:
            - name: POSTGRES_PASSWORD
              value: postgres
            - name: POSTGRES_USER
              value: postgres
            - name: POSTGRES_DB
              value: postgres
            - name: PGDATA
              value: /var/lib/postgresql/data/pgdata
          volumeMounts:
            - name: postgres-storage
              mountPath: /var/lib/postgresql/data
          resources:
            requests:
              memory: "256Mi"
              cpu: "200m"
            limits:
              memory: "512Mi"
              cpu: "500m"
      volumes:
        - name: postgres-storage
          persistentVolumeClaim:
            claimName: data-pvc