feat(kubernetes): Allow to filter context names

[DanielKneipp]

Allow filtering of kubernetes context names

Description

This change should allow the user to specify a list of namespace names to be ignored via the variable filter_contexts. Any context that matches a name on this list will be ignored.

Motivation and Context

This is to allow the user to ignore regular local contexts like docker-desktop. Basically, I want to have a way to ignore the default context I have.

How Has This Been Tested?

Tested with cargo test kubernetes

• I have tested using MacOS

Checklist:

• I have updated the documentation accordingly.
• I have updated the tests accordingly.

[davidkna]

This seems fine, but please rename the option to ignore_contexts to better align with similar options elswhere.

[davidkna]

LGTM, but we may want to wait how #614 etc. progress before merging.

[DanielKneipp]

No rush, but is that PR related somehow? I know it would allow conditional formatting based on the context name. I couldn't see a way to just ignore a context.

[davidkna]

@DanielKneipp I was thinking it might make sense to move the ignore option into display alongside with the style options etc.

[jankatins]

See #4550 for an updated/combined PR (#614 + #1568) for styling environments -> that PR does not contain the ignore feature (yet?)

[DanielKneipp]

@davidkna Agreed! this way we can have all context-related config unified. I might have some time to check this out later this weekend. Should I commit on #4550 or is a new PR preferred after this one gets merged? What do you guys think @davidkna @jankatins ?

[jankatins]

@DanielKneipp I would appreciate a review of #4550 and it's probably best to wait for a comment by one of the starship maintainer on what direction #4550 should take (there was not yet any maintainer review on that PR). :-)

[jankatins]

This PR would need a rebase (and probably a rework :-() now that #4550 is merged. I would also really love to have this. @DanielKneipp

[jankatins]

@DanielKneipp Do you think you still find time (and interest) to finish this PR or would it be ok if I take this over to rebase and rework it (in a new PR with your name as coauthor in the commit).

[DanielKneipp]

Oh feel free @jankatins! By the way, I also added some other ignore options to mix and match k8s contexts and namespaces