Nextcloud using Docker compose, Postgres and Caddy reverse proxy

💤 TL;DR

1. Set domain and eMail address in .env

   # General settings
   # Domain used for trusted domains (config.php)
   DOMAIN=localhost
   
   # Domains for TLS certificates. Items separated by comma + space: ", "
   TLS_DOMAINS="localhost, nextcloud.local"
   ADMIN_EMAIL=a@b.de

2. Create volumes

   docker volume create nextcloud_caddy_data
   docker volume create nextcloud_data
   docker volume create nextcloud_db_data

3. Deploy Nextcloud

   docker compose up -d --build

🚀 Basic usage

Create volumes

docker volume create nextcloud_caddy_data
docker volume create nextcloud_data
docker volume create nextcloud_db_data

Note: To use a local folder on your server (bind mount) for Nextcloud data, adapt the volume settings in docker-compose.yml.

# ...
volumes:
  nextcloud_caddy_data:
    external: true

  # Comment out and use code below to use a bind mount for data folder
  nextcloud_data:
    external: true

  # Use this, if using bind mount
  # nextcloud_data:
  #   driver: local
  #   driver_opts:
  #     type: none
  #     o: bind
  #     device: "${PWD}/data"

  nextcloud_db_data:
    external: true
  # ...

Configuration

Adapt .env for your requirements.

# General settings
# Domain used for trusted domains (config.php)
DOMAIN=localhost

# Domains for TLS certificates. Items separated by comma + space: ", "
TLS_DOMAINS="localhost, nextcloud.local"
ADMIN_EMAIL=a@b.de

# Caddy TLS directive settings
# https://caddyserver.com/docs/caddyfile/directives/tls
# Use this for self-signed certificates, e.g. in your LAN
# CADDY_TLS="tls internal"

# Usage of own certificates
# CADDY_TLS="tls /certs/fullchain.pem /certs/key.key"

# Nextcloud
NEXTCLOUD_VERSION=27.1.3-fpm
NEXTCLOUD_ADMIN_USER=admin      # Change username and password!!
NEXTCLOUD_ADMIN_PASSWORD=changeMe

# Nextcloud PHP settings
PHP_MEMORY_LIMIT=1024M
PHP_UPLOAD_LIMIT=16G

# DB
POSTGRES_VERSION=16-alpine
POSTGRES_DB=nextcloud           # Change username and password!!
POSTGRES_USER=nextcloud
POSTGRES_PASSWORD=changeMe

# Docker settings
DOCKER_LOGGING_MAX_SIZE=5m
DOCKER_LOGGING_MAX_FILE=3

Run Nextcloud

docker compose up -d --build

Your instance will be available after a couple of seconds unter https://localhost or https://DOMAIN, as specified in .env.

📈 Imaginary support

Follow the steps to use a imaginary stack as your image preview provider.

1. Deploy imaginary stack: docker compose -f imaginary.yml up -d or docker stack deploy -c imaginary.yml imaginary
2. Uncomment imaginary network in docker-compose.yml
3. Uncomment imaginary settings in nextcloud.env
4. Add Imaginary to preview provider in config.php
5. Re-deploy the stack docker compose up -d --build

📁 Store data in host folder

To store the nextcloud data in a host folder, e.g. to make backups easier, uncomment this section in docker-compose.yml:

volumes:

# ...

  # Comment out and use code below to use a bind mount for data folder
  # nextcloud_data:
  #   external: true

# Use this, if using bind mount
  nextcloud_data:
    driver: local
    driver_opts:
      type: none
      o: bind
      device: "${PWD}/data"

Create the folder on the host, in this example: mkdir data. Then you're ready to deploy the stack docker compose up -d --build.