Nextcloud

Using Docker, I run an instance of Nextcloud on my home server that's backed up to Backblaze B2.

Docker

This is the bare minimum required to set up Nextcloud with a PostgreSQL database. Additional setup is required for placing this service behind a reverse proxy like nginx-proxy/nginx-proxy or Traefik.

version: '3.7'

Network definitions

I use 2 networks, one for public facing services that sit on the proxy network and another for database or storage services that are not available publicly and sit on the database network.

version: '3.7'

networks:
  proxy:
  database:

Service definitions

My Nextcloud service is designed to use an external USB HDD as the main data directory and local folders for html, custom_apps, and config directories.

The permissions of these directories are really important and it took me a long time to get this right. I've highlighted the lines that document this.

# ... snip ...

services: 
  nextcloud:
    container_name: 'nextcloud'
    image: nextcloud:19-apache
    restart: unless-stopped
    volumes:

      # Directories here must be owned by "www-data:root"      - ./nextcloud/www:/var/www/html
      - ./nextcloud/apps:/var/www/html/custom_apps:rw
      - ./nextcloud/config:/var/www/html/config:rw

      # Directories here must be owned by "www-data:www-data"      - /mnt/usb/nextcloud:/var/www/html/data:rw

    environment:
      VIRTUAL_PORT: 8080
      VIRTUAL_HOST: your.nextcloud.tld
      LETSENCRYPT_HOST: your.nextcloud.tld
      LETSENCRYPT_EMAIL: [email protected]
    depends_on:
      - nginx_proxy
      - postgresql
      - redis
    networks:
      - proxy
      - database

  postgresql:
    image: postgres:12-alpine
    container_name: 'postgresql'
    restart: unless-stopped
    environment:
      NETWORK_ACCESS: internal
    volumes:
      - ./postgresql:/var/lib/postgresql/data
    networks:
      - database

  redis:
    container_name: redis
    image: redis:5-alpine
    restart: unless-stopped
    environment:
      NETWORK_ACCESS: internal
    networks:
      - database

Error 413 (nginx-proxy)

When used in tandem with nginx-proxy/nginx-proxy and nginx-proxy/docker-letsencrypt-nginx-proxy-companion it does not allow for large files to be uploaded out of the box (typically error 413). To resolve this consider the following:

# open a shell in the proxy container (while it's running)
sudo docker-compose exec proxy_container_name bash

# and edit the vhost for nextcloud
vi /etc/nginx/vhost.d/your.nextcloud.tld

Paste the content (updating for your own needs):

client_max_body_size        10G;
client_body_buffer_size     400M;

Be sure to check that the value has persisted after a docker-compose restart, the companion container may overwrite this file.

Per-VIRTUAL_HOST config documentation