Add functional tests to tox

This adds functional tests to tox, along with a number of prerequisite
steps. Since this is primarily a bash project, pbr usage has been avoided.
Tests are to be written in python and put in the tests directory.

Running tox -e setupenv will execute a setup script
(tests/setup_docker.sh) to ensure the running instance of docker meets
the minimum version requirement.

Running tox -e images will execute the image building script
(tools/build-all-docker-images) and will parse the resulting output to report
failures.

Running tox -e startenv will generate the environment file, run
"tools/kolla start", and run first time initialization (eventually).

Running tox -e functional is for actually testing the deployed OpenStack
environment via a series of tests utilizing the client APIs.

Change-Id: Iff6dfdca43f0c44d471e7540a7836e56a0de4507

1 files changed, 5 insertions, 2 deletions

diff --git a/tests/setup_docker.sh b/tests/setup_docker.sh
index d5878c681..6be1ebeec 100755
--- a/tests/setup_docker.sh
+++ b/tests/setup_docker.sh
@@ -50,12 +50,15 @@ function start_docker() {
 
 function create_group() {
     getent group docker
-    if [ $? -eq 2 ]; then # 2: key could not be found in database
+    result=$?
+    if [ $result -eq 0 ]; then # 0: key already exists, nothing to do
+        return
+    elif [ $result -eq 2 ]; then # 2: key could not be found in database
         groupadd docker
         chown root:docker /var/run/docker.sock
         usermod -a -G docker ${SUDO_USER:-$USER}
     else
-        echo Unexpected failure: $?
+        echo Unexpected failure: $result
         exit
     fi
 }