Unable to install gitlab operator in openshift

We are trying to install gitlab operator in openshift version 4.12.
It is failing as gitlab-runner-controller-manager pod is in imagepullbackoff error state.

  • This namespace events shows that cluster network is unable to reach to the registry “registry.gitlab.com” and its timing out.
  • We tested curl -kvv registry.gitlab.com from bastion it worked but its failing from the worker nodes where operator pod is getting scheduled.