yanghaichao12: add a test case for HostnameOverride

JobBuild
72771
08-13 15:04
cd5415f0
08-13 15:02
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pull-kubernetes-e2e-gce 1161467719107743744 1161429714624057344 1161387181143494659 1161348784609824768 1161291905640697858
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pull-kubernetes-kubemark-e2e-gce-big 1161478286556008448 1161387181210603520 1161295427769733120
pull-kubernetes-node-e2e 1161467719103549440 1161387181160271872 1161291905661669376
pull-kubernetes-node-e2e-containerd 1161348784634990592
pull-kubernetes-typecheck 1161467719086772227 1161387181143494656 1161291905640697856
pull-kubernetes-verify 1161467719086772224 1161387181210603522 1161291905665863681