Disable IPv6 address in OpenShift 4

Solution Verified - Updated -

Issue

  • How to disable IPv6 address in RedHat OpenShift Container Platform 4?
  • Can one do it after the cluster is already installed?
  • Is it supported to configure ipv6.disable=1 as kernelArgument in a MachineConfig?

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4
  • IPv6

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