Description of problem: Image push to the internal registry fails with "connect: no such route to host" errors. Registry logs indicate that its pod was healthy during the course of the test. Version-Release number of selected component (if applicable): 4.1.z-nightly Additional info: https://prow.svc.ci.openshift.org/view/gcs/origin-ci-test/logs/release-openshift-origin-installer-e2e-aws-4.1/1319