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About

Flarum Docker image based on Alpine Linux.
If you are interested, check out my other Docker images!

💡 Want to be notified of new releases? Check out 🔔 Diun (Docker Image Update Notifier) project!


Features

Build locally

git clone https://github.com/crazy-max/docker-flarum.git
cd docker-flarum

# Build image and output to docker (default)
docker buildx bake

# Build multi-platform image
docker buildx bake image-all

Image

Registry Image
Docker Hub crazymax/flarum
GitHub Container Registry ghcr.io/crazy-max/flarum

Following platforms for this image are available:

$ docker run --rm mplatform/mquery crazymax/flarum:latest
Image: crazymax/flarum:latest
 * Manifest List: Yes
 * Supported platforms:
   - linux/amd64
   - linux/arm/v6
   - linux/arm/v7
   - linux/arm64

Environment variables

General

  • TZ: The timezone assigned to the container (default UTC)
  • PUID: Flarum user id (default 1000)
  • PGID: Flarum group id (default 1000)
  • MEMORY_LIMIT: PHP memory limit (default 256M)
  • UPLOAD_MAX_SIZE: Upload max size (default 16M)
  • CLEAR_ENV: Clear environment in FPM workers (default yes)
  • OPCACHE_MEM_SIZE: PHP OpCache memory consumption (default 128)
  • LISTEN_IPV6: Enable IPv6 for Nginx (default true)
  • REAL_IP_FROM: Trusted addresses that are known to send correct replacement addresses (default 0.0.0.0/32)
  • REAL_IP_HEADER: Request header field whose value will be used to replace the client address (default X-Forwarded-For)
  • LOG_IP_VAR: Use another variable to retrieve the remote IP address for access log_format on Nginx. (default remote_addr)

Flarum

  • FLARUM_DEBUG: Enables or disables debug mode, used to troubleshoot issues (default false)
  • FLARUM_BASE_URL: The URL to your Flarum installation required
  • FLARUM_FORUM_TITLE: Flarum forum title, only used during first installation (default Flarum Dockerized)
  • FLARUM_API_PATH: Flarum api path (default api)
  • FLARUM_ADMIN_PATH: Flarum admin path (default admin)
  • FLARUM_POWEREDBY_HEADER: Set Flarum's X-Powered-By header (default true)
  • FLARUM_REFERRER_POLICY: Referrer policy (default same-origin)

Database

  • DB_HOST: MySQL database hostname / IP address required
  • DB_PORT: MySQL database port (default 3306)
  • DB_NAME: MySQL database name (default flarum)
  • DB_USER: MySQL user (default flarum)
  • DB_PASSWORD: MySQL password
  • DB_PREFIX: MySQL database prefix (default flarum_)
  • DB_TIMEOUT: Time in seconds after which we stop trying to reach the MySQL server (useful for clusters, default 60)

💡 DB_USER_FILE and DB_PASSWORD_FILE can be used to fill in the value from a file, especially for Docker's secrets feature.

Volumes

  • /data: Contains assets, extensions and storage

⚠️ Note that the volume should be owned by the user/group with the specified PUID and PGID. If you don't give the volume correct permissions, the container may not start.

Ports

  • 8000: HTTP port

Usage

Docker Compose

Docker compose is the recommended way to run this image. You can use the following docker compose template, then run the container:

docker-compose up -d
docker-compose logs -f

Command line

You can also use the following minimal command:

docker run -d -p 8000:8000 --name flarum \
  -v $(pwd)/data:/data \
  -e "DB_HOST=db" \
  -e "FLARUM_BASE_URL=http://127.0.0.1:8000" \
  crazymax/flarum:latest

-e "DB_HOST=db"
⚠️ db must be a running MySQL instance

Upgrade

You can upgrade Flarum automatically through the UI, it works well. But I recommend to recreate the container whenever I push an update:

docker-compose pull
docker-compose up -d

Notes

First launch

On first launch, an initial administrator user will be created:

Login Password
flarum flarum

Manage extensions

You can install Flarum extensions from the command line using a specially crafted script with this image:

docker-compose exec flarum extension require <package>

To remove an extension:

docker-compose exec flarum extension remove <package>

To list all extensions:

docker-compose exec flarum extension list

Example with fof/upload extension:

$ docker-compose exec flarum extension require fof/upload
Using version ^1.0 for fof/upload
./composer.json has been updated
Running composer update fof/upload
Loading composer repositories with package information
Updating dependencies
Lock file operations: 5 installs, 0 updates, 0 removals
  - Locking fof/upload (1.0.0)
  - Locking guzzlehttp/guzzle (7.3.0)
  - Locking guzzlehttp/promises (1.4.1)
  - Locking psr/http-client (1.0.1)
  - Locking softcreatr/php-mime-detector (3.2.0)
Writing lock file
Installing dependencies from lock file (including require-dev)
Package operations: 5 installs, 0 updates, 0 removals
  - Downloading softcreatr/php-mime-detector (3.2.0)
  - Downloading psr/http-client (1.0.1)
  - Downloading guzzlehttp/promises (1.4.1)
  - Downloading guzzlehttp/guzzle (7.3.0)
  - Downloading fof/upload (1.0.0)
  - Installing softcreatr/php-mime-detector (3.2.0): Extracting archive
  - Installing psr/http-client (1.0.1): Extracting archive
  - Installing guzzlehttp/promises (1.4.1): Extracting archive
  - Installing guzzlehttp/guzzle (7.3.0): Extracting archive
  - Installing fof/upload (1.0.0): Extracting archive
2 package suggestions were added by new dependencies, use `composer suggest` to see details.
Generating autoload files
70 packages you are using are looking for funding.
Use the `composer fund` command to find out more!
fof/upload extension added
Clearing the cache...

⚠️ You cannot use Bazaar marketplace extension to install extensions for now.

Sending mails with SMTP

You can use our SMTP relay msmtpd service published on port 2500 and declared in our docker-compose.yml:

Contributing

Want to contribute? Awesome! The most basic way to show your support is to star the project, or to raise issues. You can also support this project by becoming a sponsor on GitHub or by making a Paypal donation to ensure this journey continues indefinitely!

Thanks again for your support, it is much appreciated! 🙏

License

MIT. See LICENSE for more details.


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