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  1. OpenShift Bugs
  2. OCPBUGS-31606

disable ipv6 on default interface, nncp timeout because missing name servers at 'dns-resolver.running.server'

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      Description of problem:

      disable ipv6 on default interface, nncp timeout because missing name servers at 'dns-resolver.running.server' 

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

      OCP: 4.12.0-0.nightly-2024-03-28-130519
      knmstate operator: kubernetes-nmstate-operator.4.12.0-202403241038

      How reproducible:

      always

      Steps to Reproduce:

          1.install knmstate operator
          2.apply below nncp to disable ipv6 on the default interface
      -----
      apiVersion: nmstate.io/v1
      kind: NodeNetworkConfigurationPolicy
      metadata:
        name: disable-v6-2
      spec:
        nodeSelector:
          kubernetes.io/hostname: qeci-623142-sztdc-compute-0
        desiredState:
          interfaces:
          - name: ens192
            description: disable ipv6
            type: ethernet
            state: up
            ipv6:
              enabled: false
          

      Actual results:

      nncp failed to apply:
      % oc get nnce
      NAME                                       STATUS    REASON
      qeci-623142-sztdc-compute-0.disable-v6-2   Failing   FailedToConfigure
      % oc get nncp
      NAME           STATUS     REASON
      disable-v6-2   Degraded   FailedToConfigure

      Expected results:

      nncp applied successfully, ipv6 is disabled on the default interface.

      Additional info:

          

              mkowalsk@redhat.com Mat Kowalski
              rh-ee-qiowang Qiong Wang
              Qiong Wang Qiong Wang
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                Created:
                Updated:
                Resolved: