diff --git a/ansible/test/bin/ci-molecule.sh b/ansible/test/bin/ci-molecule.sh
index be598a4..7859c8d 100755
--- a/ansible/test/bin/ci-molecule.sh
+++ b/ansible/test/bin/ci-molecule.sh
@@ -30,7 +30,7 @@
 LOCAL_PATH=$(readlink -f "$SCRIPT_DIR")
 
 ROLE_PATH=$1
-MOLECULE_CONTAINER=${MOLECULE_CONTAINER:-true}
+MOLECULE_CONTAINER=${MOLECULE_CONTAINER:-false}
 
 echo "Build all pre-build images"
 ${LOCAL_PATH}/../images/docker/build-all.sh
diff --git a/ansible/test/bin/install-molecule.sh b/ansible/test/bin/install-molecule.sh
index f5350df..72b0793 100755
--- a/ansible/test/bin/install-molecule.sh
+++ b/ansible/test/bin/install-molecule.sh
@@ -33,7 +33,7 @@
 VENV_PATH=${VENV_PATH:-~/molecule_venv}
 
 # Create virtual env
-python3 -m venv ${VENV_PATH}
+python3.6 -m venv ${VENV_PATH}
 
 # Activate virtual env
 source ${VENV_PATH}/bin/activate
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