Prepare for using standard python tests

Add simple script to setup mysql and postgresql databases, this script
can be run by users during testing and will be run by CI systems for
specific setup before running unit tests.

This allows to change in project-config the python-db jobs to
python-jobs since python-jobs will call this script initially.

Update README for this.

See also
http://lists.openstack.org/pipermail/openstack-dev/2016-November/107784.html

Needed-By: Ic42f8d5392ab1d9b52c6c84c92dee0092bd2779a
Change-Id: I253726467151622e8aa3ff40bacc0b3f9903b342
(cherry picked from commit 61933fef10a092b951aae440800531fd8b44c558)

2 files changed, 63 insertions, 0 deletions

diff --git a/doc/source/devref/development.environment.rst b/doc/source/devref/development.environment.rst
index 1f8ac90f5..38b3bde26 100644
--- a/doc/source/devref/development.environment.rst
+++ b/doc/source/devref/development.environment.rst
@@ -77,3 +77,9 @@ Once set up, you should be able to invoke Python and import the libraries:
 
 If you can import keystone without a traceback, you should be ready to move on
 to :doc:`../developing`.
+
+Database setup
+==============
+
+The script ``tools/test-setup.sh`` sets up databases as used by the
+unit tests.
diff --git a/tools/test-setup.sh b/tools/test-setup.sh
new file mode 100755
index 000000000..07a078547
--- /dev/null
+++ b/tools/test-setup.sh
@@ -0,0 +1,57 @@
+#!/bin/bash -xe
+
+# This script will be run by OpenStack CI before unit tests are run,
+# it sets up the test system as needed.
+# Developers should setup their test systems in a similar way.
+
+# This setup needs to be run as a user that can run sudo.
+
+# The root password for the MySQL database; pass it in via
+# MYSQL_ROOT_PW.
+DB_ROOT_PW=${MYSQL_ROOT_PW:-insecure_slave}
+
+# This user and its password are used by the tests, if you change it,
+# your tests might fail.
+DB_USER=openstack_citest
+DB_PW=openstack_citest
+
+sudo -H mysqladmin -u root password $DB_ROOT_PW
+
+# It's best practice to remove anonymous users from the database.  If
+# a anonymous user exists, then it matches first for connections and
+# other connections from that host will not work.
+sudo -H mysql -u root -p$DB_ROOT_PW -h localhost -e "
+    DELETE FROM mysql.user WHERE User='';
+    FLUSH PRIVILEGES;
+    GRANT ALL PRIVILEGES ON *.*
+        TO '$DB_USER'@'%' identified by '$DB_PW' WITH GRANT OPTION;"
+
+# Now create our database.
+mysql -u $DB_USER -p$DB_PW -h 127.0.0.1 -e "
+    SET default_storage_engine=MYISAM;
+    DROP DATABASE IF EXISTS openstack_citest;
+    CREATE DATABASE openstack_citest CHARACTER SET utf8;"
+
+# Same for PostgreSQL
+# The root password for the PostgreSQL database; pass it in via
+# POSTGRES_ROOT_PW.
+DB_ROOT_PW=${POSTGRES_ROOT_PW:-insecure_slave}
+
+# Setup user
+root_roles=$(sudo -H -u postgres psql -t -c "
+   SELECT 'HERE' from pg_roles where rolname='$DB_USER'")
+if [[ ${root_roles} == *HERE ]];then
+    sudo -H -u postgres psql -c "ALTER ROLE $DB_USER WITH SUPERUSER LOGIN PASSWORD '$DB_PW'"
+else
+    sudo -H -u postgres psql -c "CREATE ROLE $DB_USER WITH SUPERUSER LOGIN PASSWORD '$DB_PW'"
+fi
+
+# Store password for tests
+cat << EOF > $HOME/.pgpass
+*:*:*:$DB_USER:$DB_PW
+EOF
+chmod 0600 $HOME/.pgpass
+
+# Now create our database
+psql -h 127.0.0.1 -U $DB_USER -d template1 -c "DROP DATABASE IF EXISTS openstack_citest"
+createdb -h 127.0.0.1 -U $DB_USER -l C -T template0 -E utf8 openstack_citest