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4.6 KiB
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152 lines
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Copyright 2010-2011 United States Government as represented by the
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Administrator of the National Aeronautics and Space Administration.
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All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License"); you may
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not use this file except in compliance with the License. You may obtain
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a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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License for the specific language governing permissions and limitations
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under the License.
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Setting Up a Development Environment
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====================================
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This page describes how to setup a working Python development
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environment that can be used in developing cinder on Ubuntu, Fedora or
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Mac OS X. These instructions assume you're already familiar with
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git. Refer to GettingTheCode_ for additional information.
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.. _GettingTheCode: http://wiki.openstack.org/GettingTheCode
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Following these instructions will allow you to run the cinder unit tests.
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Running cinder is currently only supported on Linux, although you can run the
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unit tests on Mac OS X.
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Virtual environments
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--------------------
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Cinder development uses `virtualenv <http://pypi.python.org/pypi/virtualenv>`__ to track and manage Python
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dependencies while in development and testing. This allows you to
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install all of the Python package dependencies in a virtual
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environment or "virtualenv" (a special subdirectory of your cinder
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directory), instead of installing the packages at the system level.
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.. note::
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Virtualenv is useful for running the unit tests, but is not
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typically used for full integration testing or production usage.
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Linux Systems
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-------------
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.. note::
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Feel free to add notes and change according to your experiences or operating system.
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Install the prerequisite packages.
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On Ubuntu (tested on 12.04-64 and 14.04-64)::
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sudo apt-get install python-dev libssl-dev python-pip git-core libmysqlclient-dev libpq-dev libffi-dev libxslt-dev
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On Fedora-based distributions e.g., Fedora/RHEL/CentOS/Scientific Linux (tested on CentOS 6.5)::
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sudo yum install python-virtualenv openssl-devel python-pip git gcc libffi-devel libxslt-devel mysql-devel postgresql-devel
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On openSUSE-based distributions (SLES 12, openSUSE 13.1, Factory or Tumbleweed)::
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sudo zypper install gcc git libmysqlclient-devel libopenssl-devel postgresql-devel python-devel python-pip
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Mac OS X Systems
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----------------
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Install virtualenv::
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sudo easy_install virtualenv
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Check the version of OpenSSL you have installed::
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openssl version
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If you have installed OpenSSL 1.0.0a, which can happen when installing a
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MacPorts package for OpenSSL, you will see an error when running
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``cinder.tests.auth_unittest.AuthTestCase.test_209_can_generate_x509``.
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The stock version of OpenSSL that ships with Mac OS X 10.6 (OpenSSL 0.9.8l)
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or Mac OS X 10.7 (OpenSSL 0.9.8r) works fine with cinder.
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Getting the code
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----------------
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Grab the code::
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git clone https://github.com/openstack/cinder.git
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cd cinder
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Running unit tests
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------------------
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The preferred way to run the unit tests is using ``tox``. It executes tests in
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isolated environment, by creating separate virtualenv and installing
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dependencies from the ``requirements.txt`` and ``test-requirements.txt`` files,
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so the only package you install is ``tox`` itself::
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sudo pip install tox
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Run the unit tests by doing::
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tox -e py35
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tox -e py27
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See :doc:`testing` for more details.
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.. _virtualenv:
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Manually installing and using the virtualenv
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--------------------------------------------
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You can also manually install the virtual environment::
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tox -e py27 --notest
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or::
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tox -e py35 --notest
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This will install all of the Python packages listed in the
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``requirements.txt`` file into your virtualenv.
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To activate the Cinder virtualenv you can run::
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$ source .tox/py27/bin/activate
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or::
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$ source .tox/py35/bin/activate
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To exit your virtualenv, just type::
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$ deactivate
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Or, if you prefer, you can run commands in the virtualenv on a case by case
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basis by running::
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$ tox -e venv -- <your command>
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Contributing Your Work
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----------------------
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Once your work is complete you may wish to contribute it to the project.
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Cinder uses the Gerrit code review system. For information on how to submit
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your branch to Gerrit, see GerritWorkflow_.
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.. _GerritWorkflow: http://docs.openstack.org/infra/manual/developers.html#development-workflow
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