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Last pushed: 3 years ago
Short Description
Flarum open source forum
Full Description

Flarum Docker image

Flarum is an open source forum web application written in PHP (Laravel) and JavaScript (Mithril).

This is a Docker image for the development version of Flarum, which can be used as is to try out the application, or which can be adapted to contribute to Flarum.


Once you run the image, the Flarum application will be made available at, which means that needs to point to the IP address that the container is published at.

Assuming that the container is published at the IP address (i.e. localhost, see the note below for more information on IP addresses), then you need to add this line to your hosts file (/etc/hosts on Linux and OS X, %SystemRoot%\System32\drivers\etc\hosts on Windows):   

Note — To configure and/or find out the IP address of a VM-hosted Docker installation, see (Windows) and (OS X) for guidance if using Boot2Docker. If you're using Vagrant, you'll need to set up port forwarding (see

TMI — The front end's URL is hardcoded as and the back end's URL is hardcoded as Forcing the front and the back end to have the same hardcoded hostname requires an extra step to make the hostname resolvable, but it is an easy way to comply with the same-origin policy in a development environment.


Run with:

docker run -p 80:80 sebp/flarum

Alternatively, if you're using Docker Compose, use an entry such as this one in your docker-compose.yml file:

  image: sebp/flarum
    - "80:80"

and run with:

docker-compose up flarum

Build notes

To make the image consistently rebuildable by Docker (and thus avoid issues when major things change in the source code), the build process checks out a specific commit of the flarum/flarum source code rather than the latest commit.

Two additional workarounds are needed to make that version work:


Written by Sébastien Pujadas, released under the MIT license.

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