Adding Ubuntu support in Ansible - nginx role

Extending ansible playbooks of ubuntu support.
Creating new test with Ubuntu image for Molecule in nginx role.

Issue-ID: OOM-1671
Signed-off-by: Jan Benedikt <j.benedikt@partner.samsung.com>
Change-Id: I5f6a5aedfd9a2e17d3b1bb711d3e85a242b5e2d5
2 files changed