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  1. OCP Technical Release Team
  2. TRT-2577

SNO upgrade failing: kube-storage-version-migrator pod cannot schedule due to anti-affinity on single-node cluster in nightly amd64 payload

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      Payload Regression

      PR https://github.com/openshift/cluster-kube-storage-version-migrator-operator/pull/139 is causing blocking job failures in the nightly amd64 payload.

      Evidence

      • Payload: 4.22.0-0.nightly-2026-03-11-220642
      • Failing blocking jobs:
      • Originating payload: 4.22.0-0.nightly-2026-03-11-220642
      • PR #139 converts the kube-storage-version-migrator to an HA deployment with pod anti-affinity rules. On single-node (SNO) clusters, anti-affinity prevents the replacement pod from being scheduled on the only available node, causing the operator to remain in Progressing state indefinitely after upgrade. Failed 10/10 aggregated runs.

      Action

      Revert PR https://github.com/openshift/cluster-kube-storage-version-migrator-operator/pull/139 to restore payload acceptance.

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              openshift-trt-privileged Technical Release Team Openshift
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                Created:
                Updated: