nextcloud + Bucket (docker-compose)

docker-compose.yml

version: '3'

volumes:
  nextcloud:
  db:

services:
  db:
    image: mariadb
    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
    restart: unless-stopped
    volumes:
      - db:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD=PASS
      - MYSQL_PASSWORD=PASS
      - MYSQL_DATABASE=nextcloud
      - MYSQL_USER=nextcloud

  app:
    image: nextcloud
    environment:
      - OBJECTSTORE_S3_SSL=true
      - OBJECTSTORE_S3_USEPATH_STYLE=true
      - OBJECTSTORE_S3_BUCKET=BUCKET
      - OBJECTSTORE_S3_KEY=KEY
      - OBJECTSTORE_S3_SECRET=SECRET
      - OBJECTSTORE_S3_REGION=REGION
      - OBJECTSTORE_S3_HOST=REGION_HOST
      - OBJECTSTORE_S3_PORT=443
    ports:
      - 8080:80
    links:
      - db
    volumes:
      - nextcloud:/var/www/html
    restart: unless-stopped