How to enable Collabora for multiple domains using docker-compose

In our previous post How to run Collabora office for Nextcloud using docker-compose we investigated how to configure your Collabora office server using docker-compose.yml.

If you want to use multiple domains, you need to change this line in .env:

COLLABORA_DOMAIN=collabora.mydomain.com

By reading the source code I found out that COLLABORA_DOMAIN is interpreted as a regular expression. Therefore you can use a (...|...|...) syntax.

COLLABORA_DOMAIN=(nextcloud.mydomain.com|nextcloud.myseconddomain.com)

After that, restart collabora.