Service exposition with ListenerClasses
Apache Druid offers a web UI and an API, both are exposed by the router role.
Other roles also expose API endpoints such as the broker and coordinator.
The Operator deploys services called <name>-<role> (where <name> is the name of the DruidCluster and <role> is the role for the Service) through which Druid can be reached.
These services 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 listener class is configured:
spec:
clusterConfig:
listenerClass: cluster-internal (1)| 1 | The default cluster-internal setting. |
This setting affects all role Services at once.