apiVersion: apps/v1 kind: Deployment metadata: name: todo-db spec: selector: matchLabels: app: todo-db template: metadata: labels: app: todo-db spec: containers: - name: db image: postgres:11.6-alpine env: - name: POSTGRES_PASSWORD_FILE value: /secrets/postgres_password volumeMounts: - name: secret mountPath: "/secrets" - name: data mountPath: /var/lib/postgresql/data volumes: - name: secret secret: secretName: todo-db-secret defaultMode: 0400 items: - key: POSTGRES_PASSWORD path: postgres_password - name: data persistentVolumeClaim: claimName: postgres-pvc-kiamol