Add configurations section for podmansh

[grisu48]

Feature request description

Currently podmansh is using the hard-coded /bin/sh shell, however there are use cases where people might want to have a different shell.

A possible solution would be to link /bin/sh to the desired user shell, e.g. /bin/fish but that would likely break a good portion of shell scripts that require or use #!/bin/sh. Therefore the configuration of at least the shell for podmansh would make sense.

Suggest potential solution

Introduce a new podmansh section in containers.conf that allows users to configure the various parameters used by podmansh:

• Shell
• Container name
• Timeout

Have you considered any alternatives?

I tried to use environment variables but that appeared a bit clumsy to me.
I also tried to use container labels but they are not user-configurable options.

A new configuration section allows users to set their preferred shell via ~/.config/containers/containers.conf.

Additional context

No response

[grisu48]

I've created this issue to track this feature based on my suggestions in containers/common#1993 and #22683

Please feel free to assign it to me directly.

[grisu48]

containers/common#1993 and #22683 are merged.

[grisu48]

Task completed, I would recommend to add a 5.1 label to it now and close it.