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  1. OpenShift Bugs
  2. OCPBUGS-29166

[4.15] configure-ovs.sh fails to correctly bring up "br-ex" connection during upgrade of OpenShift from 4.12.15 to 4.12.42


    • Moderate
    • No
    • CNF Network Sprint 249, CNF Network Sprint 250
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      This is a clone of issue OCPBUGS-24356. The following is the description of the original issue:

      Description of problem:

      After updating the cluster to 4.12.42 (from 4.12.15), the customer noticed some issues for the scheduled PODs to start on the node.

      The initial thought was a multus issue, and then we realised that the script /usr/local/bin/configure-ovs.sh was modified and reverting the modification fixed the issue.


      >     if nmcli connection show "$vlan_parent" &> /dev/null; then
      >       # if the VLAN connection is configured with a connection UUID as parent, we need to find the underlying device
      >       # and create the bridge against it, as the parent connection can be replaced by another bridge.
      >       vlan_parent=$(nmcli --get-values GENERAL.DEVICES conn show ${vlan_parent})
      >     fi


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


      How reproducible:

      Should be reproducible by setting inactive nmcli connections with the same names as the active once

      Steps to Reproduce:

      Not tested, but this should be something like
      1. create inactive same nmcli connections
      2. run the script

      Actual results:

      Script failing

      Expected results:

      Script should manage the connection using the UUID instead of using the Name.
      Or maybe it's an underline issue how nmcli is managing the relationship between objects.

      Additional info:

      The issue may be related to the way that nmcli is working, as it should use the UUID to match the `vlan.parent` as it does with the `connection.master`

            apanatto@redhat.com Andrea Panattoni
            openshift-crt-jira-prow OpenShift Prow Bot
            Ross Brattain Ross Brattain
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