Extending molecule test to playbooks

Review should also execute molecule tests for ansible/test/play-xxx when anything in /ansible/test has been changed

Change-Id: I9a106a1c141b1053db6ac892e2dcecd4e646fd5b
Issue-ID: OOM-1801
Signed-off-by: Mateusz Pilat <m.pilat@partner.samsung.com>
diff --git a/ansible/test/molecule-docker/Dockerfile b/ansible/test/molecule-docker/Dockerfile
index 6181731..5c2343c 100644
--- a/ansible/test/molecule-docker/Dockerfile
+++ b/ansible/test/molecule-docker/Dockerfile
@@ -14,7 +14,7 @@
     addgroup -g ${GROUP_ID} ${DOCKER_USER} && \
     adduser -D -u ${USER_ID} -G ${DOCKER_USER} ${DOCKER_USER} && \
     # Add user to same docker group as in docker_host to be able to use docker driver as sudo
-    groupadd docker-host -g ${DOCKER_GROUP_ID} && \
+    groupadd docker-host -f -g ${DOCKER_GROUP_ID} && \
     usermod -aG ${DOCKER_GROUP_ID} ${DOCKER_USER} \
 ;fi