Add snap completion

[jrib]

• Update base to core22
• Add completion
• Update instructions to use --classic

[jrib]

@derailed replying to your comment in the other PR:

It's hard for me to tell from the original pr how this will fix the snap install?

The main change is to have users use --classic when installing. This removes the need to figure out snap's sandboxing. It's what the helm and kubectl snap are doing too so I don't see much harm.

I did try to get the sandboxing to work but eventually decided to go see how helm and kubectl were doing it since they would need the same permissions. That's when I remembered they just use --classic to avoid having to deal with the sandboxing.

metanovii and I both also ended up updating the base to core22 which changes the syntax slightly.

I haven't published to the snap store but if there's any issue publishing this new version of the snap, I'm happy to work on it.

[derailed]

@jrib Very kind. Thank you Jason!
I've just merged Sergey's updates so we need to resolve conflicts.
FYI I had initially tried to use --classic mode but could not get snapscraft's folks approval to run outside the sandbox ;(
Hence not sure if these updates will resolve this?

[metanovii]

@jrib Very kind. Thank you Jason! I've just merged Sergey's updates so we need to resolve conflicts. FYI I had initially tried to use --classic mode but could not get snapscraft's folks approval to run outside the sandbox ;( Hence not sure if these updates will resolve this?

I doubt these changes will solve the problem you're talking about. As far as I remember, they need an explanation for what classic is needed. One way or another, snapstore has a lot of applications with classic, so I think this problem can be solved with snapstore support.

[derailed]

@metanovii right! A while back, I've spent a lot of time trying to get the snap folks to grant classic mode for k9s.
Did not get anywhere fast, so would be great if someone here want to take that on.

[jrib]

I went ahead and changed this PR to just have the added completion for the snap.

Did not get anywhere fast, so would be great if someone here want to take that on.

I found the old threads trying to get the snap for k9s to have the right permissions.

The threads are 1 and 2.

I am learning a lot about snap :). I'll read through the threads later today and see if there's some way for me to help make progress with the snap store.

[jrib]

I opened a new topic in the snapcraft forum to see if we can get a new conversation started.

[derailed]

@jrib Very kind and well crafted! Thank you Jason for your help with this!!

[jrib]

@derailed looks like they are willing to grant classic confinement to the k9s snap. I think they'll need some action on your part now to vet you as the publisher of k9s. Pinging you here in case you don't receive notifications from forum.snapcraft.io. If there is anything I can do to help, let me know.

[derailed]

@jrib Excellent! Thank you Jason for seeing this thru!!

[scibaric]

@derailed sahnaseredini pinged you about providing needed data. seems like they are still waiting for your response. If this is not the case ignore my comment.