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 is exactly what is
currently done by OpenStack CI in project-config.

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

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

Update devref for this.

Needed-By: I58c1d37d620ca058a4c2127e329d8d21b391965f
Change-Id: Id21d3481f7b4929c40c7351e6321d9ba5ad078b8
(cherry picked from commit dfc272c43da5ae6c0294197b2f39eb0f647c814c)

2 files changed, 64 insertions, 0 deletions

diff --git a/doc/source/dev/dev-quickstart.rst b/doc/source/dev/dev-quickstart.rst
index 4daad342a..44280204e 100644
--- a/doc/source/dev/dev-quickstart.rst
+++ b/doc/source/dev/dev-quickstart.rst
@@ -196,6 +196,13 @@ Then run ``tox`` with the debug environment as one of the following::
 For more information see the `oslotest documentation
 <http://docs.openstack.org/developer/oslotest/features.html#debugging-with-oslo-debug-helper>`_.
 
+Database Setup
+--------------
+
+The unit tests need a local database setup, you can use
+``tools/test-setup.sh`` to set up the database the same way as setup
+in the OpenStack test systems.
+
 Additional Tox Targets
 ----------------------
 
diff --git a/tools/test-setup.sh b/tools/test-setup.sh
new file mode 100755
index 000000000..186507e1d
--- /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