EE fails when using debian or ubuntu base image

[hrv-cta]

Hello,

I'm trying to create an EE with ubuntu or debian base image, and every time it fails because it doesn't find the ensurepip module.
Below is my yml:

---
version: 3
dependencies:
  ansible_core:
    package_pip: ansible-core==2.15.6
  galaxy: requirements.yml
  python: requirements.txt
  ansible_runner:
    package_pip: ansible-runner
  # python_interpreter:
  #     package_system: "python311"
  #     python_path: "/usr/bin/python3.11"

images:
  base_image:
    # name: docker.io/redhat/ubi9:latest
    # name: quay.io/rockylinux/rockylinux:9
    # name: ubuntu:mantic
    name: debian:bookworm

# options:
#   package_manager_path: apt

additional_build_steps:
  prepend_base:
    - RUN apt update
    - RUN apt install -y python3

The error is:

#8 [base 4/7] RUN /usr/bin/python3 -m ensurepip
#8 0.229 /usr/bin/python3: No module named ensurepip
#8 ERROR: process "/bin/sh -c $PYCMD -m ensurepip" did not complete successfully: exit code: 1
------
 > [base 4/7] RUN /usr/bin/python3 -m ensurepip:
0.229 /usr/bin/python3: No module named ensurepip
------
Dockerfile:22
--------------------
  20 |     RUN apt update
  21 |     RUN apt install -y python3
  22 | >>> RUN $PYCMD -m ensurepip
  23 |     RUN $PYCMD -m pip install --no-cache-dir $ANSIBLE_INSTALL_REFS
  24 |     COPY _build/scripts/ /output/scripts/

Thanks!

[Shrews]

Not really a bug since builder is intentionally designed to work only with RHEL'ish images. There are plans, though, to consider allowing a wider range of distros. See #553.