Add tools to run integration tests

According to spec in https://review.openstack.org/150743,
integration tests will be launched from the backend.
Add new install_test_backend.sh and destroy_test_backend.sh
scripts that will be called from each integration tests.
The workflow will be:

- install_test_backend
- run integration test
- destroy_test_backend

Change-Id: Ie676d3152cc4cd854ab6644e5fd281de9c2d70fd

etc/storyboard.conf.test

@@ -0,0 +1,12 @@
+[DEFAULT]
+# Default log level is INFO
+# verbose and debug has the same result.
+# One of them will set DEBUG log level output
+# debug = False
+# verbose = False
+
+# Where to store lock files
+lock_path = $state_path/lock
+
+[database]
+connection = mysql+pymysql://#DB_USER#:#DB_PASSWORD#@127.0.0.1:3306/#DB_TEST#

tools/destroy_test_backend.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+# This script cleans up the testing database and stops storyboard API
+echo 'Killing storyboard-api...'
+killall storyboard-api
+
+# export default vars if not defined, to be available in conf file
+export DB_USER=${DB_USER:-storyboard}
+export DB_PASSWORD=${DB_PASSWORD:-storyboard}
+export DB_TEST=${DB_TEST:-storyboard_test}
+
+mysql -u $DB_USER -p$DB_PASSWORD -e "DROP DATABASE IF EXISTS $DB_TEST;"

tools/install_test_backend.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+if [ -f /usr/bin/apt-get ] ; then
+    export DEBIAN_FRONTEND=noninteractive
+    sudo apt-get install -y -q mysql-server libmysqlclient-dev python-dev
+else
+    sudo yum install -y mysql-server mysql python-devel
+fi
+
+# export default vars if not defined, to be available in conf file
+export DB_USER=${DB_USER:-storyboard}
+export DB_PASSWORD=${DB_PASSWORD:-storyboard}
+export DB_TEST=${DB_TEST:-storyboard_test}
+
+# create the user if needed
+if [ $CREATE_USER ]; then
+    if [ $DB_ADMIN_PASSWORD ]; then
+        FLAG_PASS="-p$DB_ADMIN_PASSWORD"
+    else
+        FLAG_PASS=""
+    fi
+    mysql -u $DB_ADMIN_USER $FLAG_PASS -e "CREATE USER $DB_USER@'localhost' IDENTIFIED BY '$DB_PASSWORD';"
+    mysql -u $DB_ADMIN_USER $FLAG_PASS -e "GRANT ALL PRIVILEGES ON $DB_TEST.* TO $DB_USER@'localhost';"
+    mysql -u $DB_ADMIN_USER $FLAG_PASS -e "FLUSH PRIVILEGES;"
+fi
+
+# create the test database
+mysql -u $DB_USER -p$DB_PASSWORD -e "DROP DATABASE IF EXISTS $DB_TEST;"
+mysql -u $DB_USER -p$DB_PASSWORD -e "CREATE DATABASE $DB_TEST;"
+
+# replace env vars
+cd ${STORYBOARD_PATH:-storyboard}
+sed -i -e "s/#DB_USER#/$DB_USER/g" -e "s/#DB_PASSWORD#/$DB_PASSWORD/g" -e "s/#DB_TEST#/$DB_TEST/g" ./etc/storyboard.conf.test
+tox -e venv "storyboard-db-manage --config-file ./etc/storyboard.conf.test upgrade head"
+tox -e venv "storyboard-api --config-file ./etc/storyboard.conf.test" &