OpenShift nodes become "Ready" before the SDN finishes updating the firewall ruleset

Solution In Progress - Updated -

Issue

  • After upgrading OpenShift to 3.7, we've started seeing nodes being marked "Ready" before the iptables rulesets have been fully updated. As a result pods can fail to start because they can't talk to the Internal Registry. We've seen a delay of up to 5 minutes before everything fully synchronizes.

Environment

  • OpenShift Container Platform (OCP) 3.7

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