CORS-3936: Add support for public-only networking

[bear-redhat]

Add support for public-only networking (i.e., a cluster deployed with managed-VPC while has only public subnets)

Ref: https://issues.redhat.com/browse/CORS-3936
Ref: https://issues.redhat.com/browse/DPTP-4342

[openshift-ci-robot]

@bear-redhat: This pull request references CORS-3936 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "4.19.0" version, but no target version was set.

In response to this:

Add support for public-only networking (i.e., a cluster deployed with managed-VPC while has only public subnets)

Ref: https://issues.redhat.com/browse/CORS-3936
Ref: https://issues.redhat.com/browse/DPTP-4342

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[openshift-ci]

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[openshift-ci]

@bear-redhat: 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/okd-scos-e2e-aws-ovn	256c3a1	link	false	/test okd-scos-e2e-aws-ovn
ci/prow/okd-scos-images	256c3a1	link	true	/test okd-scos-images
ci/prow/e2e-vsphere-ovn-multi-network	256c3a1	link	false	/test e2e-vsphere-ovn-multi-network
ci/prow/e2e-aws-ovn-edge-zones-manifest-validation	256c3a1	link	true	/test e2e-aws-ovn-edge-zones-manifest-validation
ci/prow/e2e-aws-ovn-single-node	256c3a1	link	false	/test e2e-aws-ovn-single-node
ci/prow/e2e-aws-ovn-fips	256c3a1	link	false	/test e2e-aws-ovn-fips
ci/prow/e2e-aws-ovn-shared-vpc-custom-security-groups	256c3a1	link	false	/test e2e-aws-ovn-shared-vpc-custom-security-groups
ci/prow/e2e-aws-ovn-edge-zones	256c3a1	link	false	/test e2e-aws-ovn-edge-zones
ci/prow/aro-unit	256c3a1	link	true	/test aro-unit
ci/prow/unit	256c3a1	link	true	/test unit
ci/prow/e2e-aws-default-config	256c3a1	link	false	/test e2e-aws-default-config
ci/prow/e2e-aws-ovn-shared-vpc-edge-zones	256c3a1	link	false	/test e2e-aws-ovn-shared-vpc-edge-zones
ci/prow/e2e-aws-ovn-heterogeneous	256c3a1	link	false	/test e2e-aws-ovn-heterogeneous

Full PR test history. Your PR dashboard.

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