Service exposition with ListenerClasses

The Spark operator deploys SparkApplications, and does not offer a UI or other API, so no services are exposed. However, the operator can also deploy HistoryServers, which do offer a UI and API. The operator deploys a service called <name>-historyserver (where <name> is the name of the spark application) through which the HistoryServer can be reached.

This service can have three different types: cluster-internal, external-unstable and external-stable. Read more about the types in the service exposition documentation at platform level.

This is how the ListenerClass is configured: