* When building rootless docker image move chown&chmod to build stage
Fixes #13577
* Fix command newlines
* Move chown to COPY command
* Seems to be working also without chmod
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
* docker: rootless image
* improve docs + remove check for write perm on custom
* add more info on ssh passtrough
* Add comment for internal ssh server in container config