URLs to allow for OpenShift 4 registry mirroring in restricted network

Solution Verified - Updated -

Issue

  • When creating a mirror registry for OpenShift 4 installation in a restricted network, which registry URLs need to be whitelisted when the mirror registry host is behind the Firewall/Proxy?
  • For environments with a proxy between the mirror registry server and the internet, what special settings must be made in the configuration to complete the mirroring?

Environment

  • Red hat OpenShift Container Platform (RHOCP)
    • 4

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