[ZEPPELIN-4226] Fix "View in Spark web UI" in kubernetes mode #3451
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What is this PR for?
When Zeppelin is running in Kubernetes, "View in Spark web UI" gives internal address, instead of address defined in SERVICE_DOMAIN.
I think this problem is side effect of #3375 and this PR includes fix and updated unittest.
What type of PR is it?
Bug Fix
What is the Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-4226
How should this be tested?
Run Zeppelin on kubernetes, and run spark job, click "View in Spark web UI" button.
Questions: