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  1. OpenShift Bugs
  2. OCPBUGS-13548

ovnk fails to run on a disconnected MicroShift instance (no default route)

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      This is a clone of issue OCPBUGS-11967. The following is the description of the original issue:
      —
      Description of problem:

      When OS doesn't have default route, ovnk is experiencing problems and causing cluster to not become fully functional

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

      main

      How reproducible:

      100%

      Steps to Reproduce:

      Personally, I built an RHEL4Edge ISO with container images embedded, installed and started the VM with libvirt network configured per instructions in https://github.com/openshift/microshift/blob/main/docs/rhel4edge_iso.md#offline-mode

But I think it might just work on regular RHEL by: starting MicroShift to obtain the images, stopping VM, disconnecting network, and starting it again (without running microshift-cleanup to keep the images after boot)

      Actual results:

      ovn-k doesn't fully start, blocking start of the cluster

NAMESPACE                  NAME                                  READY   STATUS    RESTARTS        AGE
openshift-ovn-kubernetes   ovnkube-master-22mqb                  3/4     Running   4 (2m39s ago)   23m
openshift-ovn-kubernetes   ovnkube-node-xtghg                    1/1     Running   0               23m

      Expected results:

      ovn-k handles "no default route" correctly and cluster proceeds to start to become fully functional

      Additional info:

      Slack thread with the discussion after I noticed the issue
https://redhat-internal.slack.com/archives/C03CJTNLKAT/p1681828117473549

              pliurh Peng Liu
              openshift-crt-jira-prow OpenShift Prow Bot
              John George John George
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