How to apply additional cluster wide docker registry credentials to Openshift Cluster?

Solution In Progress - Updated -

Issue

  • At the time of OCP cluster installation, have used following parameter openshift_additional_registry_credentials to add docker registry credentials.
  • Post installation, how to add additional docker registry credentials such that the settings would be cluster wide and the docker images can be pulled from any of the OCP project?

Environment

  • Red Hat OpenShift Container Platform 3.11
  • docker registry credentials

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