Change health check to run as non-root user

Requires change to listening port for health check server
(from 80 to 8080).
Also update nodejs version.

Issue-ID: DCAEGEN2-2071
Signed-off-by: Jack Lucas <jflucas@research.att.com>
Change-Id: I5e85cc2184cfab845a70905edabad4699f0ef411
3 files changed