composes/nextcloud/compose.yml

services:
  nextcloud:
    image: nextcloud:35-apache
    restart: unless-stopped
    environment:
      - NEXTCLOUD_ADMIN_USER=${NEXTCLOUD_ADMIN_USER:-admin}
      - NEXTCLOUD_ADMIN_PASSWORD=${NEXTCLOUD_ADMIN_PASSWORD:?required}
      - NEXTCLOUD_TRUSTED_DOMAINS=${NEXTCLOUD_DOMAIN:?required}
      - OVERWRITEPROTOCOL=https
      - OVERWRITECLIURL=https://${NEXTCLOUD_DOMAIN:?required}
      - TRUSTED_PROXIES=${TRUSTED_PROXIES:-10.0.0.0/8 172.16.0.0/12 192.168.0.0/16}
      - APACHE_DISABLE_REWRITE_IP=1
      - POSTGRES_HOST=db
      - POSTGRES_DB=${POSTGRES_DB:-nextcloud}
      - POSTGRES_USER=${POSTGRES_USER:-nextcloud}
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:?required}
      - REDIS_HOST=cache
      - PHP_MEMORY_LIMIT=${PHP_MEMORY_LIMIT:-1G}
      - PHP_UPLOAD_LIMIT=${PHP_UPLOAD_LIMIT:-16G}
    volumes:
      - nextcloud-html:/var/www/html
    depends_on:
      db:
        condition: service_healthy
      cache:
        condition: service_healthy

  # Runs Nextcloud background jobs every five minutes.
  cron:
    image: nextcloud:35-apache
    restart: unless-stopped
    entrypoint: /cron.sh
    volumes:
      - nextcloud-html:/var/www/html
    depends_on:
      db:
        condition: service_healthy
      cache:
        condition: service_healthy

  # PostgreSQL for file metadata, users and shares.
  db:
    image: postgres:18-alpine
    restart: unless-stopped
    environment:
      - POSTGRES_DB=${POSTGRES_DB:-nextcloud}
      - POSTGRES_USER=${POSTGRES_USER:-nextcloud}
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:?required}
    volumes:
      - db-data:/var/lib/postgresql
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -h localhost -U $${POSTGRES_USER} -d $${POSTGRES_DB}"]
      interval: 5s
      timeout: 5s
      retries: 10

  # Redis for file locking and the distributed cache.
  cache:
    image: redis:8-alpine
    restart: unless-stopped
    volumes:
      - cache-data:/data
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 5s
      timeout: 5s
      retries: 10

volumes:
  nextcloud-html:
  db-data:
  cache-data: