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  1. OpenShift Bugs
  2. OCPBUGS-61111

[GCP] installing into GCP shared VPC with BYO hosted zone failed with error "failed to create the private managed zone"

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      Description of problem:

          installing into GCP shared VPC with BYO hosted zone failed with error "failed to create the private managed zone"

      Version-Release number of selected component (if applicable):

          4.20.0-0.nightly-2025-09-01-101753

      How reproducible:

          Always

      Steps to Reproduce:

      1. pre-create the dns private zone in the service project, with the zone's dns name like "<cluster name>.<base domain>" and binding to the shared VPC (see [1]) 
      2. activate the service account having minimum permissions, i.e. no permission to bind a private zone to the shared VPC in the host project (see [2] and [3]) 
      3. "create install-config" and then insert the interested settings (see [3]) 
      4. "create cluster" (see [4])     

      Actual results:

          It still tries to create a private zone, which is unexpected.

      Expected results:

          The installer should use the pre-configured DNS private zone, rather than try to create a new one.

      Additional info:

      The working PROW CI test: 
      https://qe-private-deck-ci.apps.ci.l2s4.p1.openshiftapps.com/view/gs/qe-private-deck/logs/periodic-ci-openshift-openshift-tests-private-release-4.20-multi-nightly-gcp-ipi-xpn-mini-perm-byo-hosted-zone-arm-f28/1951450651678478336 (4.20.0-0.nightly-multi-2025-07-31-045159)
      
      The problem PROW CI test: 
      https://qe-private-deck-ci.apps.ci.l2s4.p1.openshiftapps.com/view/gs/qe-private-deck/logs/periodic-ci-openshift-openshift-tests-private-release-4.20-multi-nightly-gcp-ipi-xpn-mini-perm-byo-hosted-zone-arm-f28/1962707129034870784 (4.20.0-0.nightly-multi-2025-09-01-200104)

              rh-ee-bbarbach Brent Barbachem
              rhn-support-jiwei Jianli Wei
              None
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              Jianli Wei Jianli Wei
              None
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                Created:
                Updated: