What is the correct method for adding a persistent rule to iptables on an OpenShift Master or Node?

Solution Verified - Updated -

Issue

  • The OpenShift-SDN adds iptables rules that are not meant to be persistent. How do I add a rule without using the iptables-save command?
  • What are the best steps to add a rule to the iptables chain OS_FIREWALL_ALLOW that OpenShift configures during installation?

Environment

OpenShift Container Platform 3

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