[release-3.11] Restore graceful shutdown of DNS server#21021

knobunc merged 1 commit intoopenshift:release-3.11openshift/origin:release-3.11from

Miciah:release-3.11-restore-graceful-shutdown-of-dns-serverMiciah/origin:release-3.11-restore-graceful-shutdown-of-dns-serverCopy head branch name to clipboard