[stable/kured] Change psp apiVersion for K8s 1.16

[ckotzbauer]

What this PR does / why we need it:

Ensure compatibility with K8s 1.16 and therefore use new apiVersion for PodSecurityPolicy.

Which issue this PR fixes

No issue

Special notes for your reviewer:

Nothing special

Checklist

• DCO signed
• Chart Version bumped
• Variables are documented in the README.md
• Title of the PR starts with chart name (e.g. [stable/mychartname])

[k8s-ci-robot]

Hi @code-chris. Thanks for your PR.

I'm waiting for a helm 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.

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[ckotzbauer]

/assign @maorfr
ping @plumdog @patrickmslatteryvt

[plumdog]

Does this change the effective minimum k8s version?

[ckotzbauer]

@plumdog
Yes, it does. The new apiVersion requires K8s 1.10 or higher. The current min version of this chart is at least 1.9 (apps/v1 in DaemonSet), but I'm not completely sure.

[zanhsieh]

/ok-to-test

[ckotzbauer]

@plumdog @zanhsieh
Is there anything to do here to get this merged?

[zanhsieh]

@code-chris
You need a helm member to merge this PR, since it doesn't have any owner.

@maorfr @jlegrone
Would you mind to LGTM this PR please? Thank you.

[maorfr]

i would prefer to have backwards compatibility. #17268 has an example. wdyt?

[ckotzbauer]

Yes, I can implement this switch. No problem

[ckotzbauer]

Added a switch for PSP apiVersion to be compatible with older versions.
Maybe the min required version (I think 1.9) should be documented in the README with an additional PR.

[maorfr]

/lgtm

thanks a lot!

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: code-chris, maorfr

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