Replace NodePort Service with ClusterIP (kubeflow#520)

* Remove NodePort Service

* Docs update

Merge pull request kubeflow#477 from liyinan926/master

Fixed mounting of Prometheus configuration ConfigMap

Merge pull request kubeflow#448 from liyinan926/master

Also add a label for the submission ID to other resources

Merge pull request kubeflow#442 from GoogleCloudPlatform/revert-439-m…

…aster

Revert "Pinned k8s.io/code-generator to the same version as other k8s.io deps"

Merge pull request kubeflow#431 from prem0132/patch-1

Update who-is-using.md to include HashmapInc.

Merge pull request kubeflow#333 from liyinan926/master

Updated to use the v1beta1 version of the APIs

Merge pull request kubeflow#366 from liyinan926/ssa-fix

Fixed the controller logic for ScheduledSparkApplications

Merge pull request kubeflow#340 from liyinan926/update-fix

Fixed SparkApplication update in updateAndExportMetrics

Upgraded to go 1.11

Fixed a typo