nilo19: cherry pick of #87246: Fix the bug PIP's DNS is deleted if no DNS label service annotation isn't set.

JobBuild
87312
01-17 07:24
9d3c943b
01-17 07:22
pull-kubernetes-bazel-build 1218071047396397056
pull-kubernetes-bazel-test 1218071047446728706
pull-kubernetes-dependencies 1218071047446728705
pull-kubernetes-e2e-aks-engine-azure 1218094831629242369 1218071047446728709
pull-kubernetes-e2e-azure-disk 1218071047450923009
pull-kubernetes-e2e-azure-disk-vmss 1218071047446728707
pull-kubernetes-e2e-azure-file 1218071047450923008
pull-kubernetes-e2e-gce 1218071047434145794
pull-kubernetes-e2e-gce-100-performance 1218071047408979968
pull-kubernetes-e2e-gce-device-plugin-gpu 1218071047421562880
pull-kubernetes-e2e-gce-rbe 1218094831629242368 1218071047421562881
pull-kubernetes-integration 1218071047446728708
pull-kubernetes-kubemark-e2e-gce-big 1219576094617767936 1218071047434145792
pull-kubernetes-node-e2e 1218071047446728704
pull-kubernetes-typecheck 1218071047396397057
pull-kubernetes-verify 1218071047434145793