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  1. OpenShift Bugs
  2. OCPBUGS-4611

[4.13] Egress IP Health Check Is Not Compatible With VF (Hardware Backed) Management Port

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major Major
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    • 4.13.0
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      Description of problem:

      For Hardware Backed Management Ports (e.g. Virtual functions), the Egress IP Health Check Feature will error out with:
      "unable to start health checking server: no mgmt ip"

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

      OVN-Kubernetes 4.12.0

      How reproducible:

      Always

      Steps to Reproduce:

      1. Load OVN-Kubernetes 4.12.0 in MLX BlueField 2
      2. If in NIC mode:
      https://github.com/ovn-org/ovn-kubernetes/pull/3160
      https://github.com/ovn-org/ovn-kubernetes/pull/3251
      Patches are needed.
      3. If in DPU mode then those above patches are optional.
      4. Set OVNKUBE_NODE_MGMT_PORT_NETDEV environment variable to point to the Virtual Function.

      Actual results:

      Error in ovnkube-node:
      "unable to start health checking server: no mgmt ip".
      The ovnkube-node container will crash. Egress IP Health Check should be compatible with VFs as management port.

      Expected results:

      No Error.

      Additional info:

      A simple workaround is to not return an error:
      go-controller/pkg/node/node.go
      @@ -660,7 +660,8 @@ func (n *OvnNode) startEgressIPHealthCheckingServer(wg *sync.WaitGroup, mgmtPort
                              return fmt.Errorf("failed start health checking server due to unsettled IPv6: %w", err)
                      }
              } else {
      -               return fmt.Errorf("unable to start health checking server: no mgmt ip")
      +               klog.Infof("Unable to start Egress IP health checking server: no mgmt ip")
      +               return nil
              }

            wizhao@redhat.com William Zhao
            wizhao@redhat.com William Zhao
            Anurag Saxena Anurag Saxena
            Balazs Nemeth, William Zhao
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              Created:
              Updated:
              Resolved: