Uploaded image for project: 'OpenShift Bugs'
  1. OpenShift Bugs
  2. OCPBUGS-22793

Cannot reach kubernetes.default.svc.cluster.local from HostedCluster workers

XMLWordPrintable

    • Quality / Stability / Reliability
    • False
    • Hide

      None

      Show
      None
    • None
    • Moderate
    • No
    • None
    • None
    • Rejected
    • None
    • None
    • None
    • None
    • None
    • None
    • None
    • None

      Description of problem:

      A hypershift dump with --dump-guest-cluster will be attached.
      
      Any pod running on this hosted cluster's worker nodes can:
      
      $ nslookup kubernetes.default.svc.cluster.local
      Server:        172.30.0.10
      Address:    172.30.0.10#53Name:    kubernetes.default.svc.cluster.local
      Address: 172.30.0.1
      
      but cannot connect to this service by the service IP:
      $ curl -k https://172.30.0.1:443/readyz
      curl: (7) Failed to connect to 172.30.0.1 port 443: Connection refused
      
      Pods can use the default AdvertiseAddress, 172.20.0.1 to connect to the kube-apiserver:
      $ curl -k https://172.20.0.1:443/readyz
      ok

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

      4.13.13

      How reproducible:

      There are two hostedclusters on this same management cluster in the same state, but we aren't sure about the root cause/how to reproduce it

      Steps to Reproduce:

      1. Unknown
      

      Actual results:

       

      Expected results:

      Pods on a hosted cluster's workers have connectivity to their kube apiserver via the service IP.

      Additional info:

      One suspicious thing that we noticed is that the management cluster itself upgraded to 4.13.15 at the same time that these problems started occurring on the hostedcluster, but we aren't sure if they are strictly related.

              agarcial@redhat.com Alberto Garcia Lamela
              mshen.openshift Michael Shen (Inactive)
              None
              None
              Jie Zhao Jie Zhao
              None
              Votes:
              0 Vote for this issue
              Watchers:
              3 Start watching this issue

                Created:
                Updated:
                Resolved: