OpenShift SDN sdn-controller pod has a localhost.localdomain lease

Solution Verified - Updated -

Issue

Either of these symptoms are seen:

  • OpenShift SDN shows strange behavior allocating hostsubnet or netnamespace objects
  • More than one node has the same hostsubnet
  • Egress IP failover for Egress CIRDRs works erratically

And the openshift-network-controller lease is assigned to localhost.localdomain as per the diagnostic steps section. Note that if you don't find what is described in diagnostic steps sections, this solution doesn't apply to your problem

Environment

  • Red Hat OpenShift Container Platform 4.y

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