OCPBUGS-77026: DNS optimization, add trailing dots

[jotak]

Update getProxyServiceURL and getServiceURL to generate URLs with trailing dots, such as
"my-service.my-namespace.svc.cluster.local.:3000", which makes it unambiguous to the DNS resolver, speeding up DNS resolution by avoiding unnecessary queries.

[openshift-ci-robot]

@jotak: This pull request references Jira Issue OCPBUGS-77026, which is invalid:

• expected the bug to target the "4.22.0" version, but no target version was set

Comment /jira refresh to re-evaluate validity if changes to the Jira bug are made, or edit the title of this pull request to link to a different bug.

The bug has been updated to refer to the pull request using the external bug tracker.

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In response to this:

Update getProxyServiceURL and getServiceURL to generate URLs with trailing dots, such as
"my-service.my-namespace.svc.cluster.local.:3000", which makes it unambiguous to the DNS resolver, speeding up DNS resolution by avoiding unnecessary queries.

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[jhadvig]

/retest

[spadgett]

/lgtm

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jotak, spadgett

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[openshift-ci]

@jotak: The following test 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-azure-ovn-upgrade	d5a397d	link	true	/test e2e-azure-ovn-upgrade

Full PR test history. Your PR dashboard.

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