ansible/roles/docker/files/composefiles/nextcloud.yml

version: '3'
services:
  db:
    image: postgres
    restart: always
    volumes:
      - db:/var/lib/postgresql/data
    environment:
      - POSTGRES_DB=nextcloud
      - POSTGRES_USER=nextcloud

  app:
    image: nextcloud
    ports:
      - 8080:80
    volumes:
      - nextcloud:/var/www/html
    restart: always
    environment: 
      - POSTGRES_HOST=db
    env_file: 
      - nextcloud-db.env
    depends_on: 
      - db
volumes:
  nextcloud:
  db: