Support BigDL for Spark on k8s (#2023)
Support BigDL for Spark on k8s (#2023)

* maybe some refactor

* handle k8s master url

* k8s

* add doc

* add more doc

* add doc

yangw1234/BigDL,intel-analytics/BigDL,yangw1234/BigDL,yangw1234/BigDL,intel-analytics/BigDL,intel-analytics/BigDL,intel-analytics/BigDL,yangw1234/BigDL