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  1. OpenShift Bugs
  2. OCPBUGS-25462

Number of configured control plane replicas should be validated

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      * Previously, agent-based installations could fail if an invalid number of control plane replicas was specified, such as 2. With this update, the installation program enforces the requirement of specifying either 1 or 3 control plane replicas for agent-based installations. (link:https://issues.redhat.com/browse/OCPBUGS-25462[*OCPBUGS-25462*])
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      * Previously, agent-based installations could fail if an invalid number of control plane replicas was specified, such as 2. With this update, the installation program enforces the requirement of specifying either 1 or 3 control plane replicas for agent-based installations. (link: https://issues.redhat.com/browse/OCPBUGS-25462 [* OCPBUGS-25462 *])
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      The number of control plane replicas defined in install-config.yaml (or agent-cluster-install.yaml) should be validated to check its set to 3, or 1 in the case of SNO. If set to another value the "create image" command should fail.

      We recently had a case where the number of replicas was set to 2 and the installation failed. It would be good to catch this misconfiguration prior to the install.

              ppinjark@redhat.com pawan pinjarkar
              bfournie@redhat.com Robert Fournier
              Manoj Hans Manoj Hans
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