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  1. OpenShift Bugs
  2. OCPBUGS-62981

Panic error during the destruction of an OpenShift 4.18 on GCP using the OpenShift installer

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      Before the fix the GCP deprovision process would fail with a panic when a nil or missing value was provided during the GCP disk deletion. The fix checks for the nil or missing and ensures that a failure does not occur, instead the process is able to continue to delete the GCP resources for the cluster.
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      Before the fix the GCP deprovision process would fail with a panic when a nil or missing value was provided during the GCP disk deletion. The fix checks for the nil or missing and ensures that a failure does not occur, instead the process is able to continue to delete the GCP resources for the cluster.
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      This is a clone of issue OCPBUGS-57732. The following is the description of the original issue:
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      Description of problem:

          When trying to destroy the OCP cluster on GCP, I hit a Panic error. The error is a nil pointer dereference in the waitFor method of the Cluster Uninstaller struct. The panic occurs in the waitFor method, which is called by handleOperation, invoked by deleteDisk, and ultimately part of destroyDisks. The likely cause is a nil pointer being passed to waitFor, possibly due to a failed GCP API call or an uninitialized client.

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

          4.18

      How reproducible:

      Steps to Reproduce:

          1. Install 4.18 cluster on GCP
    2. Destroy the cluster using openshift-installer

      Actual results:

          Cluster and associated resources should destroy without any error

      Expected results:

          During the deletion of cluster resources, hitting a panic error

      Additional info:

          This seems to occur when a call to the Delete function returns no error but a nil operation (op) like here https://github.com/t-cas/openshift-installer/blob/main/pkg/destroy/gcp/disk.go#L126C32-L126C38 for disks or here https://github.com/t-cas/openshift-installer/blob/main/pkg/destroy/gcp/instance.go#L108 for VMs.
Error is triggered when calling this waitFor function https://github.com/openshift/installer/blob/main/pkg/destroy/gcp/gcp.go#L425 as "op" parameter is dereferenced without any check here https://github.com/openshift/installer/blob/main/pkg/destroy/gcp/gcp.go#L442

              rh-ee-bbarbach Brent Barbachem
              rhn-support-sar Santhiya R
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              Jianli Wei Jianli Wei
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                Created:
                Updated: