Docker Compose with Specified Volume Locations

Hey guys, I’m trying to get a nextcloud instance up and running using docker-compose and for some reason when I launch it I’m getting no response on the port, any ideas?

version: '3'

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

  app:
    image: nextcloud
    ports:
      - 6666:80
    links:
      - db
    volumes:
      - /mnt/raid/next-cloud/html:/var/www/html
      - /mnt/raid/next-cloud/apps:/var/www/html/custom_apps
      - /mnt/raid/next-cloud/config:/var/www/html/config
      - /mnt/raid/next-cloud/data:/var/www/html/data
    restart: always

docker logs nextctloud would be a starting point.