Working with multiple projects/domains

Docksal has a built-in reverse proxy container that adds support for running multiple projects or using multiple (arbitrary domains).
The container binds to and routes web requests based on the host name.

DNS resolution and routing for *.docksal domains is automatically configured.

Default virtual host / domain name

To find the current project's virtual host name run fin config | grep '^VIRTUAL_HOST'.

$ fin config | grep '^VIRTUAL_HOST'
VIRTUAL_HOST: myproject.docksal
VIRTUAL_HOST_ALIASES: *.myproject.docksal

By default, the project domain value (myproject.docksal) is derived from the project folder name sans spaces and dashes.
Also, wildcard sub-domain aliases (*.myproject.docksal) are available out-of-the box.

Overriding the default domain name

The default domain name can be overridden via either docksal-local.env or docksal.env file in the project:



Check configuration change:

$ fin config | grep '^VIRTUAL_HOST'
VIRTUAL_HOST: custom-domain.docksal
VIRTUAL_HOST_ALIASES: *.custom-domain.docksal

Apply configuration changes with fin project start (fin p start for short).

Using arbitrary custom domains

A completely custom domain(s) can be assigned by extending the io.docksal.virtual-host label of the web container in either docksal-local.yml or docksal.yml file in the project.

version: "2.1"

      - io.docksal.virtual-host=${VIRTUAL_HOST},*.${VIRTUAL_HOST},,,*

io.docksal.virtual-host=${VIRTUAL_HOST},*.${VIRTUAL_HOST} is the default value.

Apply configuration changes with fin project start (fin p start for short).

Please note, that non .docksal domains (e.g. will not be resolved automatically. You can use fin hosts command to add and manage additional domain names via the system's hosts file. See fin help hosts.