279 lines
10 KiB
Python
279 lines
10 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2013, Scott Anderson <scottanderson42@gmail.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#
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DOCUMENTATION = '''
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---
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module: django_manage
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short_description: Manages a Django application.
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description:
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- Manages a Django application using the I(manage.py) application frontend to I(django-admin). With the I(virtualenv) parameter, all management commands will be executed by the given I(virtualenv) installation.
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version_added: "1.1"
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options:
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command:
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choices: [ 'cleanup', 'flush', 'loaddata', 'runfcgi', 'syncdb', 'test', 'validate', 'migrate', 'collectstatic' ]
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description:
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- The name of the Django management command to run. Allowed commands are cleanup, createcachetable, flush, loaddata, syncdb, test, validate.
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required: true
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app_path:
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description:
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- The path to the root of the Django application where B(manage.py) lives.
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required: true
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settings:
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description:
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- The Python path to the application's settings module, such as 'myapp.settings'.
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required: false
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pythonpath:
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description:
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- A directory to add to the Python path. Typically used to include the settings module if it is located external to the application directory.
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required: false
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virtualenv:
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description:
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- An optional path to a I(virtualenv) installation to use while running the manage application.
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required: false
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apps:
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description:
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- A list of space-delimited apps to target. Used by the 'test' command.
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required: false
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cache_table:
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description:
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- The name of the table used for database-backed caching. Used by the 'createcachetable' command.
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required: false
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database:
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description:
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- The database to target. Used by the 'createcachetable', 'flush', 'loaddata', and 'syncdb' commands.
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required: false
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failfast:
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description:
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- Fail the command immediately if a test fails. Used by the 'test' command.
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required: false
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default: "no"
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choices: [ "yes", "no" ]
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fixtures:
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description:
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- A space-delimited list of fixture file names to load in the database. B(Required) by the 'loaddata' command.
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required: false
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skip:
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description:
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- Will skip over out-of-order missing migrations, you can only use this parameter with I(migrate)
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required: false
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merge:
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description:
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- Will run out-of-order or missing migrations as they are not rollback migrations, you can only use this parameter with 'migrate' command
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required: false
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link:
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description:
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- Will create links to the files instead of copying them, you can only use this parameter with 'collectstatic' command
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required: false
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notes:
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- I(virtualenv) (U(http://www.virtualenv.org)) must be installed on the remote host if the virtualenv parameter is specified.
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- This module will create a virtualenv if the virtualenv parameter is specified and a virtualenv does not already exist at the given location.
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- This module assumes English error messages for the 'createcachetable' command to detect table existence, unfortunately.
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- To be able to use the migrate command, you must have south installed and added as an app in your settings
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- To be able to use the collectstatic command, you must have enabled staticfiles in your settings
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requirements: [ "virtualenv", "django" ]
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author: Scott Anderson
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'''
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EXAMPLES = """
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# Run cleanup on the application installed in 'django_dir'.
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- django_manage: command=cleanup app_path={{ django_dir }}
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# Load the initial_data fixture into the application
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- django_manage: command=loaddata app_path={{ django_dir }} fixtures={{ initial_data }}
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#Run syncdb on the application
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- django_manage: >
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command=syncdb
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app_path={{ django_dir }}
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settings={{ settings_app_name }}
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pythonpath={{ settings_dir }}
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virtualenv={{ virtualenv_dir }}
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#Run the SmokeTest test case from the main app. Useful for testing deploys.
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- django_manage: command=test app_path=django_dir apps=main.SmokeTest
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"""
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import os
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def _fail(module, cmd, out, err, **kwargs):
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msg = ''
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if out:
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msg += "stdout: %s" % (out, )
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if err:
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msg += "\n:stderr: %s" % (err, )
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module.fail_json(cmd=cmd, msg=msg, **kwargs)
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def _ensure_virtualenv(module):
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venv_param = module.params['virtualenv']
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if venv_param is None:
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return
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virtualenv = module.get_bin_path('virtualenv', True)
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vbin = os.path.join(os.path.expanduser(venv_param), 'bin')
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activate = os.path.join(vbin, 'activate')
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if not os.path.exists(activate):
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vcmd = '%s %s' % (virtualenv, venv_param)
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vcmd = [virtualenv, venv_param]
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rc, out_venv, err_venv = module.run_command(vcmd)
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if rc != 0:
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_fail(module, vcmd, out_venv, err_venv)
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os.environ["PATH"] = "%s:%s" % (vbin, os.environ["PATH"])
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def createcachetable_filter_output(line):
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return "Already exists" not in line
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def flush_filter_output(line):
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return "Installed" in line and "Installed 0 object" not in line
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def loaddata_filter_output(line):
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return "Installed" in line and "Installed 0 object" not in line
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def syncdb_filter_output(line):
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return ("Creating table " in line) or ("Installed" in line and "Installed 0 object" not in line)
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def migrate_filter_output(line):
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return ("Migrating forwards " in line) or ("Installed" in line and "Installed 0 object" not in line)
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def main():
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command_allowed_param_map = dict(
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cleanup=(),
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createcachetable=('cache_table', 'database', ),
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flush=('database', ),
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loaddata=('database', 'fixtures', ),
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syncdb=('database', ),
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test=('failfast', 'testrunner', 'liveserver', 'apps', ),
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validate=(),
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migrate=('apps', 'skip', 'merge'),
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collectstatic=('link', ),
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)
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command_required_param_map = dict(
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loaddata=('fixtures', ),
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createcachetable=('cache_table', ),
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)
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# forces --noinput on every command that needs it
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noinput_commands = (
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'flush',
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'syncdb',
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'migrate',
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'test',
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'collectstatic',
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)
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# These params are allowed for certain commands only
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specific_params = ('apps', 'database', 'failfast', 'fixtures', 'liveserver', 'testrunner')
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# These params are automatically added to the command if present
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general_params = ('settings', 'pythonpath', 'database',)
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specific_boolean_params = ('failfast', 'skip', 'merge', 'link')
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end_of_command_params = ('apps', 'cache_table', 'fixtures')
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module = AnsibleModule(
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argument_spec=dict(
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command = dict(default=None, required=True),
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app_path = dict(default=None, required=True),
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settings = dict(default=None, required=False),
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pythonpath = dict(default=None, required=False, aliases=['python_path']),
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virtualenv = dict(default=None, required=False, aliases=['virtual_env']),
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apps = dict(default=None, required=False),
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cache_table = dict(default=None, required=False),
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database = dict(default=None, required=False),
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failfast = dict(default='no', required=False, choices=BOOLEANS, aliases=['fail_fast']),
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fixtures = dict(default=None, required=False),
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liveserver = dict(default=None, required=False, aliases=['live_server']),
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testrunner = dict(default=None, required=False, aliases=['test_runner']),
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skip = dict(default=None, required=False, choices=BOOLEANS),
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merge = dict(default=None, required=False, choices=BOOLEANS),
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link = dict(default=None, required=False, choices=BOOLEANS),
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),
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)
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command = module.params['command']
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app_path = module.params['app_path']
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virtualenv = module.params['virtualenv']
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for param in specific_params:
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value = module.params[param]
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if param in specific_boolean_params:
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value = module.boolean(value)
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if value and param not in command_allowed_param_map[command]:
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module.fail_json(msg='%s param is incompatible with command=%s' % (param, command))
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for param in command_required_param_map.get(command, ()):
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if not module.params[param]:
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module.fail_json(msg='%s param is required for command=%s' % (param, command))
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venv = module.params['virtualenv']
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_ensure_virtualenv(module)
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os.chdir(app_path)
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cmd = "python manage.py %s" % (command, )
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if command in noinput_commands:
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cmd = '%s --noinput' % cmd
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for param in general_params:
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if module.params[param]:
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cmd = '%s --%s=%s' % (cmd, param, module.params[param])
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for param in specific_boolean_params:
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if module.boolean(module.params[param]):
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cmd = '%s --%s' % (cmd, param)
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# these params always get tacked on the end of the command
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for param in end_of_command_params:
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if module.params[param]:
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cmd = '%s %s' % (cmd, module.params[param])
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rc, out, err = module.run_command(cmd)
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if rc != 0:
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if command == 'createcachetable' and 'table' in err and 'already exists' in err:
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out = 'Already exists.'
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else:
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if "Unknown command:" in err:
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_fail(module, cmd, err, "Unknown django command: %s" % command)
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_fail(module, cmd, out, err, path=os.environ["PATH"], syspath=sys.path)
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changed = False
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lines = out.split('\n')
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filt = globals().get(command + "_filter_output", None)
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if filt:
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filtered_output = filter(filt, out.split('\n'))
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if len(filtered_output):
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changed = filtered_output
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module.exit_json(changed=changed, out=out, cmd=cmd, app_path=app_path, virtualenv=virtualenv,
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settings=module.params['settings'], pythonpath=module.params['pythonpath'])
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# import module snippets
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from ansible.module_utils.basic import *
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main()
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