ImageTagMirrorSet (ITMS) is not working as expected in RHOCP4

Solution Verified - Updated -

Issue

  • Adding mirror registries in ImageTagMirrorSet (ITMS) not taking effect.
  • The file /etc/containers/registries.conf inside node only showing the registry configurations added via IDMS, not ITMS :
  [[registry.mirror]]
    location = "docker.example.com/docker"
    pull-from-mirror = "digest-only"
  • Is it possible to use ImageDigestMirrorSet (IDMS) and ImageTagMirrorSet (ITMS) together ?

Environment

  • Red Hat Openshift Container Platform (RHOCP) 4

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