Add spoc merge Command

[mhils]

What type of PR is this?

/kind feature

What this PR does / why we need it:

This PR adds a spoc merge command which can be used to merge multiple security profiles via the CLI.

Does this PR have test?

Yes.

Does this PR introduce a user-facing change?

Added a `spoc merge` command to merge multiple security profiles from the command line.

[k8s-ci-robot]

Hi @mhils. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[mhils]

This here was quite surprising to me and annoying to track down.

I think this is also a bug in Artifact.Pull(...), but I haven't verified it end-to-end. If we all are happy with directly using yalm.Unmarshal there (instead of going through a.YamlUnmarshal), I'm happy to follow up with another PR that extracts profile loading into a generic utility function which is used in both places.
In any case, that's definitely a separate PR. :)

[saschagrunert]

We only used if for seccomp right now, so yeah. This may be a bad bug.

[saschagrunert]

Thank you!

[saschagrunert]

We only used if for seccomp right now, so yeah. This may be a bad bug.

[saschagrunert]

/ok-to-test

[codecov-commenter]

Codecov Report

Merging #2136 (9e3fc1d) into main (11d77f4) will decrease coverage by 4.55%.
Report is 55 commits behind head on main.
The diff coverage is 54.35%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2136      +/-   ##
==========================================
- Coverage   45.50%   40.95%   -4.55%     
==========================================
  Files          79      102      +23     
  Lines        7782    15106    +7324     
==========================================
+ Hits         3541     6187    +2646     
- Misses       4099     8482    +4383     
- Partials      142      437     +295     

[saschagrunert]

Thank you!

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mhils, saschagrunert

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[mhils]

Thank you for the prompt review! 🍰 Tests are just flaky here, right?

[saschagrunert]

Yes, restarted the OLM test.

[mhils]

Thanks - looks like we are extra lucky today or we have CI breakage. 🙃

[mhils]

Thank you for the super quick review! 🍰 ⚡

[saschagrunert]

Thank you for working on this @mhils! 🙏