vm: do not require optional system utilities

[LaszloGombos]

"htop", "vim", "inetutils-ping", "dnsutils" are optional dependencies - only required for developers working on colima.

I'd like to get some feedback on possibly moving these packages out of the main codebase into the configuration file. This would enable developers removing these packages without patching colima core source code.

Thanks !

[abiosoft]

I do agree that they can be moved outside of the main codebase.

The integration tests are failing because nslookup is assumed to exist for docker local domain name validation.
You would need modify the tests to manually install dnsutils in the VM.

[abiosoft]

The goal is to eventually have a custom generated Ubuntu image with only the necessary packages bundled.

[LaszloGombos]

I do agree that they can be moved outside of the main codebase.

Should I completely remove them, move them to embedded/defaults/colima.yaml or perhaps to embedded/defaults/template.yaml ?

You would need modify the tests to manually install dnsutils in the VM.

Thanks for the hint. Done.

The goal is to eventually have a custom generated Ubuntu image with only the necessary packages bundled.

Yes, make sense. is the idea to build up an image with debootsratp or simply purge packages from the current cloud image ?

[abiosoft]

Should I completely remove them, move them to embedded/defaults/colima.yaml or perhaps to embedded/defaults/template.yaml?

I think they can be completely removed and example in the provision section of the config should suffice.

[abiosoft]

Yes, make sense. is the idea to build up an image with debootsratp or simply purge packages from the current cloud image ?

I do not know which one is easier. Actually we can create a separate issue to track that.