Cannot map site.yml when using docker run

[CorneliousJD]

When using docker run, trying to map a volume for the site.yml results in it creating a folder instead of a .yml file.
I believe the big issue here is the secret key that is supposed to be changed, we have no way of changing that when running as docker run.

[CorneliousJD]

Perhaps having the secret as an environmental variable would be a better choice for docker anyways, could this be implemented?

[ZeiP]

It should be possible to map a single file also using the selector in the installation manual. You need to have the site.yml file in your local directory, though (so replace /home/user/site.yml with the correct path to the file).