Issue 3859: Fix scale_segmentStore script for external access (#3868)
Issue 3859: Fix scale_segmentStore script for external access (#3868)

* Ensures publishedIPAddress configuration is read from the docker configuration.

* Adds missing configuration for HDFS.

Signed-off-by: Sandeep <d4c3b2e88eba404dcfe4cb6465fc67e71862e085@emc.com>

pravega/pravega,pravega/pravega,pravega/pravega