Investigate using DockerHub "Official Images" for python rather than the OS as the base image

[kowh-ai]

Rather than specifying what OS should be used for the "base image" for CKAN we should target "Official Images" for python

eg: use:python:3.10-bookworm for Python 3.10 (latest) on Debian 12 (bookworm)
or python:3.10-slim for Python 3.10 (latest) on Debian 12 (slim bookworm)

Please note there are no Ubuntu distributions for Official DockerHub images for Python

Should we use specific release numbers ie: Python 3.10.14 rather than the latest for Python 3.10?

[wardi]

based on

python                          3.10-bookworm     eeec5526d75f   5 weeks ago     1GB
python                          3.10-slim         afa6ddca455a   5 weeks ago     128MB

and the fact that we're coming from alpine, I think slim is likely a better choice.

[wardi]

Don't think it's worth using specific release numbers, the bugfix releases should be compatible