docs: add github workflow and docker examples

[eyarz]

Because kubectl-validate doesn't have an official docker image (yet), this is a simple implantation example of using kubectl-validate with github action workflow and docker file.

[alexzielenski]

Really appreciate you adding this? Has this workflow been tested anywhere?

[eyarz]

Really appreciate you adding this? Has this workflow been tested anywhere?

of course! I added a link in the PR description:
https://github.com/eyarz/kubectl-validate-playground/actions

[apelisse]

Thanks!
/lgtm

@alexzielenski do you want to approve?

[apelisse]

I think this is inferred from go.mod if missing, we could get rid of this. just FYI.

[eyarz]

@alexzielenski @apelisse
not sure so I'm verifying :)
do you need any code changes from my side to get this PR merged?

[alexzielenski]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alexzielenski, eyarz

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[eyarz]

@alexzielenski @apelisse
it looks like this PR failed CI on an unrelated issue to the code changes that I submitted.
is there something I do to help this PR get merged? I don't want this PR drift to much away from main...

[apelisse]

I'm re-running the job, hopefully it will work, thanks for bringing this to my attention!

[apelisse]

Well, there you go!