Enabling helm3 Support for appmgr.

Added env variable in Dockerfile & used it in application code. The helm2 will still be working

Issue-Id: RIC-680
Signed-off-by: Alok Bhatt <alok_bh@hcl.com>
Change-Id: I28dfdfa3f5869f6ab17da4000cac62cc37546d51
4 files changed