48d5380f2e
In order to fade out MySQL-python from OpenStack we need to stop testing it. Add release notes entry and adjust documentation references accordingly. Depends-On: Ie1f07062ed18350bcbb9e7b5e33c7ab2390be9ab Change-Id: Ie17f4543fa3d72b507d88d2c4023a9a5a430419e
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=================
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How to contribute
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=================
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If you would like to contribute to the development of OpenStack,
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you must follow the steps in this page:
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https://docs.openstack.org/infra/manual/developers.html
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Once those steps have been completed, changes to OpenStack
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should be submitted for review via the Gerrit tool, following
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the workflow documented at:
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https://docs.openstack.org/infra/manual/developers.html#development-workflow
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Pull requests submitted through GitHub will be ignored.
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Bugs should be filed on Launchpad, not GitHub:
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https://bugs.launchpad.net/oslo.db
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How to run unit tests
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=====================
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oslo.db (as all OpenStack projects) uses tox to run unit tests. You can find
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general information about OpenStack unit tests and testing with tox in wiki_.
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oslo.db tests use PyMySQL as the default MySQL DB API driver (which is true for
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OpenStack), and psycopg2 for PostgreSQL. pip will build these libs in your
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venv, so you must ensure that you have the required system packages installed
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for psycopg2 (PyMySQL is a pure-Python implementation and so needs no
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additional system packages). For Ubuntu/Debian they are python-dev, and
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libpq-dev. For Fedora/CentOS - gcc, python-devel and postgresql-devel.
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The oslo.db unit tests system allows to run unittests on real databases. At the
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moment it supports MySQL, PostgreSQL and SQLite.
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For testing on a real database backend you need to set up a user
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``openstack_citest`` with password ``openstack_citest`` on localhost (some
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OpenStack projects require a database named 'openstack_citest' too).
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Please note, that this user must have permissions to create and drop databases.
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If the testing system is not able to connect to the backend, tests on it will
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be skipped.
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For PostgreSQL on Ubuntu you can create a user in the following way::
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sudo -u postgres psql
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postgres=# create user openstack_citest with createdb login password
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'openstack_citest';
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For MySQL you can use the following commands::
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mysql -u root
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mysql> CREATE USER 'openstack_citest'@'localhost' IDENTIFIED BY
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'openstack_citest';
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mysql> GRANT ALL PRIVILEGES ON * . * TO 'openstack_citest'@'localhost';
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mysql> FLUSH PRIVILEGES;
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See the script ``tools/test-setup.sh`` on how the databases are set up
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excactly in the OpenStack CI infrastructure and use that for your
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set up.
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Alternatively, you can use `pifpaf`_ to run the unit tests directly without
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setting up the database yourself. You still need to have the database software
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installed on your system. The following tox environments can be used::
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tox -e py27-mysql
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tox -e py27-postgresql
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tox -e py34-mysql
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tox -e py34-postgresql
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tox -e py27-all
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tox -e py34-all
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The database will be set up for you locally and temporarily on each run.
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Another way is to start `pifpaf` manually and use it to run the tests as you
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wish::
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$ eval `pifpaf -g OS_TEST_DBAPI_ADMIN_CONNECTION run postgresql`
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$ echo $OS_TEST_DBAPI_ADMIN_CONNECTION
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postgresql://localhost/postgres?host=/var/folders/7k/pwdhb_mj2cv4zyr0kyrlzjx40000gq/T/tmpMGqN8C&port=9824
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$ tox -e py27
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[…]
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$ tox -e py34
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[…]
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# Kill pifpaf once you're done
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$ kill $PIFPAF_PID
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.. _wiki: https://wiki.openstack.org/wiki/Testing#Unit_Tests
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.. _pifpaf: https://github.com/jd/pifpaf
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