---
version: '3'

volumes:
  nextcloud:
  db:
services:
  db:
    image: mariadb:latest
    restart: always
    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW --innodb-file-per-table=1 --skip-innodb-read-only-compressed
    volumes:
      - ./data/db:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD:-secret}
      - MYSQL_PASSWORD=${MYSQL_PASSWORD:-secret}
      - MYSQL_DATABASE=${MYSQL_DATABASE:-nextcloud}
      - MYSQL_USER=${MYSQL_USER:-nextcloud}
  redis:
    image: redis:latest
    restart: always
    command: redis-server --requirepass ${REDIS_PASSWORD:-secret}

  app:
    image: nextcloud:latest
    restart: always
    ports:
      - "8080:80"
    links:
      - db
      - redis
    volumes:
      - ./data/app/:/var/www/html
    environment:
      - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD:-secret}
      - MYSQL_PASSWORD=${MYSQL_PASSWORD:-secret}
      - MYSQL_DATABASE=${MYSQL_DATABASE:-nextcloud}
      - MYSQL_USER=${MYSQL_USER:-nextcloud}
      - MYSQL_HOST=db
      - REDIS_HOST_PASSWORD=${REDIS_PASSWORD:-secret}
    depends_on:
      - db
      - redis
...