Fix IPv6 VIPs DNS lookup for baremetal deployments

[mnietoji]

Issue when using Dual stack networking as EXTERNAL_SUBNET_V4 is defined. Instead, use IP_STACK for setting API_VIPS and INGRESS_VIPS for either IPV4, IPV6 or Dual stack

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[openshift-ci]

Hi @mnietoji. Thanks for your PR.

I'm waiting for a github.com 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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[dtantsur]

/ok-to-test

[openshift-ci]

@mnietoji: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-metal-ipi-serial-ipv4-1of2	a88205d	link	true	/test e2e-metal-ipi-serial-ipv4-1of2
ci/prow/e2e-metal-ipi-bm	a88205d	link	true	/test e2e-metal-ipi-bm
ci/prow/e2e-agent-compact-ipv4-iso-no-registry	a88205d	link	false	/test e2e-agent-compact-ipv4-iso-no-registry
ci/prow/e2e-metal-ipi-ovn-dualstack	a88205d	link	false	/test e2e-metal-ipi-ovn-dualstack

Full PR test history. Your PR dashboard.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.