Run command as a current user

[zezic]

Run command as a current user to avoid creating of build artifact files with the root privileges which then are not handy to remove/overwrite.

[cschol]

That only works if a user matching the current user exists in the Docker container.

[zezic]

The next thing works for me:

zezic@990FXA:~$ docker run --user 12345:12345 -it bash
bash-5.0$ echo $UID
12345
bash-5.0$ id -g
12345
bash-5.0$

As well as building plugins with --user argument manually adjusted to 12345:12345.