Automated build of Ubuntu images?

[Carsten Agger]

As a followup to my question the other day about automating install in 
remastered Ubuntu images:

Does anyone have experience building custom ISOs in CI pipelines?

I'm thinking of setting up a Gitlab CI pipeline which would basically 
run this script:

https://github.com/OS2borgerPC/image/blob/48683_kill_clonezilla/image/build_os2borgerpc_image.sh

... and make it available for download.

However, Gitlab CI normally runs in Docker & I don't know if it's even 
possible to do all this chrooting and mounting from within docker. How 
would one normally go about this kind of thing?


Best regards & TIA for any response
Carsten