docker-compose/nextcloud/docker-compose.yml

version: '2'

volumes:
  app:

services:
  app:
    container_name: nextcloud
    image: nextcloud
    restart: always
    ports:
      - 8080:80
    volumes:
      - app:/var/www/html
      - /mnt/data/nextcloud/files:/var/www/html/data
      - /mnt/data/nextcloud/config:/var/www/html/config
    environment:
      - MYSQL_PASSWORD=${MYSQL_PASSWORD}
      - MYSQL_DATABASE=${MYSQL_DATABASE}
      - MYSQL_USER=${MYSQL_USER}
      - MYSQL_HOST=${MYSQL_HOST}
    networks:
      - mariadb_default
      - proxy

networks:
  mariadb_default:
    external: true
  proxy:
#    name: proxy
    external: true