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  1. Red Hat OpenStack Services on OpenShift
  2. OSPRH-7062

test-operator should request RWO PVC by default

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      .Tempest test-operator does not work with LVMS storage class

      When the test-operator is used to run Tempest, it requests a “ReadWriteMany” PersistentVolumeClaim (PVC) which the LVMS storage class does not support. This causes the tempest-test pod to become stuck in the `pending` state.

      *Workaround*: Use the test-operator with a storage class supporting `ReadWriteMany` PVCs. The test-operator should work with a  `ReadWriteOnce` PVC so the fixed version will no longer request a `ReadWriteMany` PVC.
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      .Tempest test-operator does not work with LVMS storage class When the test-operator is used to run Tempest, it requests a “ReadWriteMany” PersistentVolumeClaim (PVC) which the LVMS storage class does not support. This causes the tempest-test pod to become stuck in the `pending` state. *Workaround*: Use the test-operator with a storage class supporting `ReadWriteMany` PVCs. The test-operator should work with a  `ReadWriteOnce` PVC so the fixed version will no longer request a `ReadWriteMany` PVC.
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      While testing test-operator with the LVMS storage class for OSPRH-2749 the PVC is stuck in pending and then fails.

      openstack                              26s         Warning   ProvisioningFailed          persistentvolumeclaim/tempest-tests-f9c28                               failed to provision volume with StorageClass "lvms-local-storage": rpc error: code = InvalidArgument desc = unsupported access mode: MULTI_NODE_MULTI_WRITER

      LVMS storage class does not support ReadWriteMany access mode. Could this line be removed so that the PVC is requested with ReadWriteOnce instead?

      https://github.com/openstack-k8s-operators/test-operator/blob/839eb81c2b83a54db44a795f3b797413206df4ce/controllers/common.go#L140

      In a follow up patch, if you need to run multiple test-operators for parallel execution maybe you could instead request one PVC per pod.

              lpiwowar Lukáš Piwowarski
              rhn-support-johfulto John Fulton
              rhos-tempest
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