Setup unix user inside docker
I'm trying to convert glib to ci-template (https://gitlab.gnome.org/GNOME/glib/-/merge_requests/2620), but their unit tests requires to be run as unprivileged user. Their Dockerfile has this:
-RUN useradd -u $HOST_USER_ID -ms /bin/bash user
-USER user
-WORKDIR /home/user
Is it possible to do that with ci-template?