Add tox -eansible-functional job

Change-Id: Ica8813503c2692a41212266b9bca3fe74e5ed108
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

tests/inventory

@@ -1 +1,2 @@
-localhost
+[all]
+localhost ansible_connection=local

tox.ini

@@ -18,6 +18,11 @@ commands =
     ansible-playbook --syntax-check -i tests/inventory \
     -e rolename=$(basename $(pwd)) > /dev/null"
 
+[testenv:ansible-functional]
+changedir = tests
+commands =
+  ansible-playbook -i inventory test.yaml -e "rolename={toxinidir} --sudo"
+passenv = HOME
 
 [testenv:venv]
 commands = {posargs}