How to add further package sources?

[tboeckel]

We are currently building a "bookworm" image with the standard package sources "main" and "non-free-firmware". So far, so good.
We need to add the package "phppgadmin", which is located in the "bookworm-backports" source.

With just the two sources "main" and "non-free-firmware" there is of course no package "phppgadmin" found during the build process. But if I add "bookworm-backports" to the list of components, then I get errors, because that component cannot be found on the Debian servers.

I can add "bookworm-backports" later to /etc/apt/sources.list and install phppgadmin manually without any problems, but I need it to be contained in our image.

What is the correct way to archive this?

We have this debootstrap block

`actions:

• action: debootstrap
  suite: bookworm
  components:
  • main
  • non-free-firmware
    mirror: http://deb.debian.org/debian
    variant: minbase
    `

And later we have this apt block

- action: apt packages: - phppgadmin

Any hints are welcome!

[daissi]

You can add a run action adding the backport repository like:

  - action: run
    description: Add Backports repo
    command: echo "deb http://deb.debian.org/debian bookworm-backports main" >> ${ROOTDIR}/etc/apt/sources.list

Alternately, it's also possible to use an overlay action to add new files into /etc/apt/sources.list.d.

[tboeckel]

That additional action did the job! Perfect! Many thanks!