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  1. OpenShift Bugs
  2. OCPBUGS-74675

GCP installs should succeed if 'zones' is not specified and the region has an AI zone

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      Before this update, when installing a cluster on {gcp-first} in the `us-south1` and `us-central1` regions, if you did not specify standard zones in the `install-config.yaml` file, the installation program would select an AI zone as the default zone. As a result, the AI zone would likely have insufficient resources for a cluster and the installation would fail. With this release, AI zones are excluded from selection by the installation program, and installations no longer fail if you do not specify a zone when installing a cluster in the `us-south1` and `us-central1` regions. (link:https://issues.redhat.com/browse/OCPBUGS-74675[OCPBUGS-74675])
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      Before this update, when installing a cluster on {gcp-first} in the `us-south1` and `us-central1` regions, if you did not specify standard zones in the `install-config.yaml` file, the installation program would select an AI zone as the default zone. As a result, the AI zone would likely have insufficient resources for a cluster and the installation would fail. With this release, AI zones are excluded from selection by the installation program, and installations no longer fail if you do not specify a zone when installing a cluster in the `us-south1` and `us-central1` regions. (link: https://issues.redhat.com/browse/OCPBUGS-74675 [ OCPBUGS-74675 ])
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      This is a clone of issue OCPBUGS-74674. The following is the description of the original issue:
      —
      This is a clone of issue OCPBUGS-74672. The following is the description of the original issue:
      —
      This is a clone of issue OCPBUGS-74625. The following is the description of the original issue:
      —

      Description of problem

      GCP has added two AI zones, so all GCP installs to us-south1 and us-central1 regions may fail unless you explicitly select zones in your install-config. All existing OCP installers are exposed, with from 4.12 through 4.22. The only known mitigations are explicitly setting zones in the install-config, or using a region that does not include AI zones.

      Version-Release number of selected component

      All installer versions, at least as far back as 4.12, and probably all v4 GCP installers ever.

      How reproducible

      Every time? At least very common.

      Steps to Reproduce

      1. Create a GCP clustr in either us-south1 or us-central1, and do not specify zones in the install-config.

      Actual results

      Watch the install fail with messages like minimum worker replica count ... not yet met and ...-ai... zone references in the installer logs.

      Expected results

      Successful installs.

      Workaround

      Specify the desired list of zones in which you want to install.

              padillon Patrick Dillon
              trking W. Trevor King
              Gaoyun Pei Gaoyun Pei
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