selfoss/compose.postgres.yml

---
version: '3.8'

services:
  db:
    image: "postgres:9.6.5"
    volumes:
      - "db:/var/lib/postgresql/data"
    networks:
      - internal
    environment:
      POSTGRES_USER: selfoss
      POSTGRES_PASSWORD_FILE: /run/secrets/db_password
      POSTGRES_DB: selfoss
    secrets:
      - db_password

  selfoss: 
    networks:
      - internal
    depends_on:
      - db
    secrets:
      - db_password
    environment:
      - SELFOSS_DB_HOST=db
      - SELFOSS_DB_NAME=selfoss
      - SELFOSS_DB_USERNAME=selfoss
      - SELFOSS_DB_PASSWORD_FILE=/run/secrets/db_password

volumes:
  db:

secrets:
  db_password:    
    external: true 
    name: ${STACK_NAME}_db_password_${DB_PASSWORD_VERSION}