Revert OCCM standard dnsPolicy to ClusterFirst and make dnsPolicy con…

[Payback159]

…figurable to support 10618

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind api-change

/kind bug

/kind cleanup
/kind design
/kind documentation
/kind failing-test
/kind feature
/kind flake

What this PR does / why we need it:

Revert OCCM standard dnsPolicy to ClusterFirst to fix #10914 which was introduced with #10618 and make dnsPolicy configurable to furthermore support #10618

Which issue(s) this PR fixes:

Fixes #10914

Special notes for your reviewer:

The original manifest from OCCM has no dnsPolicy set at all and according to the Kubernetes documentation it falls on ClusterFirst. https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/
That's the reason why I am using ClusterFirst as the default value for the new introduced variable.

Does this PR introduce a user-facing change?:

Revert OCCM standard dnsPolicy to ClusterFirst to fix #10914 which was introduced with #10618 and make dnsPolicy configurable to furthermore support #10618

[k8s-ci-robot]

Hi @Payback159. 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.

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[VannTen]

Given the discussion on the issue and on slack: /lgtm

[tico88612]

/ok-to-test

[VannTen]

/assign @cristicalin @mzaian

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mzaian, Payback159

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