Initial Keystone users, roles, domains, projects

Functions to create initial users, roles, domains and projects in
Keystone. Not doing endpoint registration yet.

Adds gettextutils (translations) to openstack-common.conf. Adds mock
dependency for testing.

Partially implements: blueprint tripleo-keystone-cloud-config

Change-Id: I8ad106c4dbf793bada4e4a1141256ac72bb653db
This commit is contained in:
Jiri Stransky 2014-03-05 10:21:42 +01:00
parent f8b913ef19
commit a147fe002d
9 changed files with 752 additions and 1 deletions

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[DEFAULT]
# The list of modules to copy from oslo-incubator.git
module=gettextutils
# The base module to hold the copy of openstack.common
base=os_cloud_config
base=os_cloud_config

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# -*- coding: utf-8 -*-
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import logging
from os_cloud_config.openstack.common.gettextutils import _
LOG = logging.getLogger(__name__)
class CloudConfigException(Exception):
"""Base os-cloud-config exception
To correctly use this class, inherit from it and define
a 'message' property. That message will get printf'd
with the keyword arguments provided to the constructor.
"""
msg_fmt = _("An unknown exception occurred.")
def __init__(self, message=None, **kwargs):
self.kwargs = kwargs
if not message:
try:
message = self.msg_fmt % kwargs
except Exception:
# kwargs doesn't match a variable in the message
# log the issue and the kwargs
LOG.exception('Exception in string format operation')
for name, value in kwargs.iteritems():
LOG.error("%s: %s" % (name, value))
# at least get the core message out if something happened
message = self.msg_fmt
super(CloudConfigException, self).__init__(message)

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os_cloud_config/keystone.py Normal file
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# -*- coding: utf-8 -*-
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import logging
import keystoneclient.v3.client as ksclient
LOG = logging.getLogger(__name__)
def initialize(host, admin_token, admin_email, admin_password):
"""Perform post-heat initialization of Keystone.
:param host: ip/hostname of node where Keystone is running
:param admin_token: admin token to use with Keystone's admin endpoint
:param admin_email: admin user's e-mail address to be set
:param admin_password: admin user's password to be set
"""
keystone = _create_admin_client(host, admin_token)
_create_roles(keystone)
_create_projects(keystone)
_create_admin_user(keystone, admin_email, admin_password)
def initialize_for_swift(host, admin_token):
"""Create roles in Keystone for use with Swift.
:param host: ip/hostname of node where Keystone is running
:param admin_token: admin token to use with Keystone's admin endpoint
"""
keystone = _create_admin_client(host, admin_token)
LOG.debug('Creating swiftoperator role.')
keystone.roles.create('swiftoperator')
LOG.debug('Creating ResellerAdmin role.')
keystone.roles.create('ResellerAdmin')
def initialize_for_heat(host, admin_token, domain_admin_password):
"""Create Heat domain and an admin user for it.
:param host: ip/hostname of node where Keystone is running
:param admin_token: admin token to use with Keystone's admin endpoint
:param domain_admin_password: heat domain admin's password to be set
"""
keystone = _create_admin_client(host, admin_token)
admin_role = keystone.roles.find(name='admin')
LOG.debug('Creating heat domain.')
heat_domain = keystone.domains.create(
'heat',
description='Owns users and projects created by heat'
)
LOG.debug('Creating heat_domain_admin user.')
heat_admin = keystone.users.create(
'heat_domain_admin',
description='Manages users and projects created by heat',
domain=heat_domain,
password=domain_admin_password,
)
LOG.debug('Granting admin role to heat_domain_admin user on heat domain.')
keystone.roles.grant(admin_role,
user=heat_admin,
domain=heat_domain)
def _create_admin_client(host, admin_token):
"""Create Keystone v3 client for admin endpoint.
:param host: ip/hostname of node where Keystone is running
:param admin_token: admin token to use with Keystone's admin endpoint
"""
admin_url = "http://%s:35357/v3" % host
return ksclient.Client(endpoint=admin_url, token=admin_token)
def _create_roles(keystone):
"""Create initial roles in Keystone.
:param keystone: keystone v3 client
"""
LOG.debug('Creating admin role.')
keystone.roles.create('admin')
LOG.debug('Creating Member role.')
keystone.roles.create('Member')
def _create_projects(keystone):
"""Create initial projects in Keystone.
:param keystone: keystone v3 client
"""
LOG.debug('Creating admin project.')
keystone.projects.create('admin', None)
LOG.debug('Creating service project.')
keystone.projects.create('service', None)
def _create_admin_user(keystone, admin_email, admin_password):
"""Create admin user in Keystone.
:param keystone: keystone v3 client
:param admin_email: admin user's e-mail address to be set
:param admin_password: admin user's password to be set
"""
admin_project = keystone.projects.find(name='admin')
admin_role = keystone.roles.find(name='admin')
LOG.debug('Creating admin user.')
admin_user = keystone.users.create('admin',
email=admin_email,
password=admin_password,
project=admin_project)
LOG.debug('Granting admin role to admin user on admin project.')
keystone.roles.grant(admin_role,
user=admin_user,
project=admin_project)

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import six
six.add_move(six.MovedModule('mox', 'mox', 'mox3.mox'))

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# Copyright 2012 Red Hat, Inc.
# Copyright 2013 IBM Corp.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
gettext for openstack-common modules.
Usual usage in an openstack.common module:
from os_cloud_config.openstack.common.gettextutils import _
"""
import copy
import functools
import gettext
import locale
from logging import handlers
import os
import re
from babel import localedata
import six
_localedir = os.environ.get('os_cloud_config'.upper() + '_LOCALEDIR')
_t = gettext.translation('os_cloud_config', localedir=_localedir, fallback=True)
# We use separate translation catalogs for each log level, so set up a
# mapping between the log level name and the translator. The domain
# for the log level is project_name + "-log-" + log_level so messages
# for each level end up in their own catalog.
_t_log_levels = dict(
(level, gettext.translation('os_cloud_config' + '-log-' + level,
localedir=_localedir,
fallback=True))
for level in ['info', 'warning', 'error', 'critical']
)
_AVAILABLE_LANGUAGES = {}
USE_LAZY = False
def enable_lazy():
"""Convenience function for configuring _() to use lazy gettext
Call this at the start of execution to enable the gettextutils._
function to use lazy gettext functionality. This is useful if
your project is importing _ directly instead of using the
gettextutils.install() way of importing the _ function.
"""
global USE_LAZY
USE_LAZY = True
def _(msg):
if USE_LAZY:
return Message(msg, domain='os_cloud_config')
else:
if six.PY3:
return _t.gettext(msg)
return _t.ugettext(msg)
def _log_translation(msg, level):
"""Build a single translation of a log message
"""
if USE_LAZY:
return Message(msg, domain='os_cloud_config' + '-log-' + level)
else:
translator = _t_log_levels[level]
if six.PY3:
return translator.gettext(msg)
return translator.ugettext(msg)
# Translators for log levels.
#
# The abbreviated names are meant to reflect the usual use of a short
# name like '_'. The "L" is for "log" and the other letter comes from
# the level.
_LI = functools.partial(_log_translation, level='info')
_LW = functools.partial(_log_translation, level='warning')
_LE = functools.partial(_log_translation, level='error')
_LC = functools.partial(_log_translation, level='critical')
def install(domain, lazy=False):
"""Install a _() function using the given translation domain.
Given a translation domain, install a _() function using gettext's
install() function.
The main difference from gettext.install() is that we allow
overriding the default localedir (e.g. /usr/share/locale) using
a translation-domain-specific environment variable (e.g.
NOVA_LOCALEDIR).
:param domain: the translation domain
:param lazy: indicates whether or not to install the lazy _() function.
The lazy _() introduces a way to do deferred translation
of messages by installing a _ that builds Message objects,
instead of strings, which can then be lazily translated into
any available locale.
"""
if lazy:
# NOTE(mrodden): Lazy gettext functionality.
#
# The following introduces a deferred way to do translations on
# messages in OpenStack. We override the standard _() function
# and % (format string) operation to build Message objects that can
# later be translated when we have more information.
def _lazy_gettext(msg):
"""Create and return a Message object.
Lazy gettext function for a given domain, it is a factory method
for a project/module to get a lazy gettext function for its own
translation domain (i.e. nova, glance, cinder, etc.)
Message encapsulates a string so that we can translate
it later when needed.
"""
return Message(msg, domain=domain)
from six import moves
moves.builtins.__dict__['_'] = _lazy_gettext
else:
localedir = '%s_LOCALEDIR' % domain.upper()
if six.PY3:
gettext.install(domain,
localedir=os.environ.get(localedir))
else:
gettext.install(domain,
localedir=os.environ.get(localedir),
unicode=True)
class Message(six.text_type):
"""A Message object is a unicode object that can be translated.
Translation of Message is done explicitly using the translate() method.
For all non-translation intents and purposes, a Message is simply unicode,
and can be treated as such.
"""
def __new__(cls, msgid, msgtext=None, params=None,
domain='os_cloud_config', *args):
"""Create a new Message object.
In order for translation to work gettext requires a message ID, this
msgid will be used as the base unicode text. It is also possible
for the msgid and the base unicode text to be different by passing
the msgtext parameter.
"""
# If the base msgtext is not given, we use the default translation
# of the msgid (which is in English) just in case the system locale is
# not English, so that the base text will be in that locale by default.
if not msgtext:
msgtext = Message._translate_msgid(msgid, domain)
# We want to initialize the parent unicode with the actual object that
# would have been plain unicode if 'Message' was not enabled.
msg = super(Message, cls).__new__(cls, msgtext)
msg.msgid = msgid
msg.domain = domain
msg.params = params
return msg
def translate(self, desired_locale=None):
"""Translate this message to the desired locale.
:param desired_locale: The desired locale to translate the message to,
if no locale is provided the message will be
translated to the system's default locale.
:returns: the translated message in unicode
"""
translated_message = Message._translate_msgid(self.msgid,
self.domain,
desired_locale)
if self.params is None:
# No need for more translation
return translated_message
# This Message object may have been formatted with one or more
# Message objects as substitution arguments, given either as a single
# argument, part of a tuple, or as one or more values in a dictionary.
# When translating this Message we need to translate those Messages too
translated_params = _translate_args(self.params, desired_locale)
translated_message = translated_message % translated_params
return translated_message
@staticmethod
def _translate_msgid(msgid, domain, desired_locale=None):
if not desired_locale:
system_locale = locale.getdefaultlocale()
# If the system locale is not available to the runtime use English
if not system_locale[0]:
desired_locale = 'en_US'
else:
desired_locale = system_locale[0]
locale_dir = os.environ.get(domain.upper() + '_LOCALEDIR')
lang = gettext.translation(domain,
localedir=locale_dir,
languages=[desired_locale],
fallback=True)
if six.PY3:
translator = lang.gettext
else:
translator = lang.ugettext
translated_message = translator(msgid)
return translated_message
def __mod__(self, other):
# When we mod a Message we want the actual operation to be performed
# by the parent class (i.e. unicode()), the only thing we do here is
# save the original msgid and the parameters in case of a translation
params = self._sanitize_mod_params(other)
unicode_mod = super(Message, self).__mod__(params)
modded = Message(self.msgid,
msgtext=unicode_mod,
params=params,
domain=self.domain)
return modded
def _sanitize_mod_params(self, other):
"""Sanitize the object being modded with this Message.
- Add support for modding 'None' so translation supports it
- Trim the modded object, which can be a large dictionary, to only
those keys that would actually be used in a translation
- Snapshot the object being modded, in case the message is
translated, it will be used as it was when the Message was created
"""
if other is None:
params = (other,)
elif isinstance(other, dict):
params = self._trim_dictionary_parameters(other)
else:
params = self._copy_param(other)
return params
def _trim_dictionary_parameters(self, dict_param):
"""Return a dict that only has matching entries in the msgid."""
# NOTE(luisg): Here we trim down the dictionary passed as parameters
# to avoid carrying a lot of unnecessary weight around in the message
# object, for example if someone passes in Message() % locals() but
# only some params are used, and additionally we prevent errors for
# non-deepcopyable objects by unicoding() them.
# Look for %(param) keys in msgid;
# Skip %% and deal with the case where % is first character on the line
keys = re.findall('(?:[^%]|^)?%\((\w*)\)[a-z]', self.msgid)
# If we don't find any %(param) keys but have a %s
if not keys and re.findall('(?:[^%]|^)%[a-z]', self.msgid):
# Apparently the full dictionary is the parameter
params = self._copy_param(dict_param)
else:
params = {}
# Save our existing parameters as defaults to protect
# ourselves from losing values if we are called through an
# (erroneous) chain that builds a valid Message with
# arguments, and then does something like "msg % kwds"
# where kwds is an empty dictionary.
src = {}
if isinstance(self.params, dict):
src.update(self.params)
src.update(dict_param)
for key in keys:
params[key] = self._copy_param(src[key])
return params
def _copy_param(self, param):
try:
return copy.deepcopy(param)
except TypeError:
# Fallback to casting to unicode this will handle the
# python code-like objects that can't be deep-copied
return six.text_type(param)
def __add__(self, other):
msg = _('Message objects do not support addition.')
raise TypeError(msg)
def __radd__(self, other):
return self.__add__(other)
def __str__(self):
# NOTE(luisg): Logging in python 2.6 tries to str() log records,
# and it expects specifically a UnicodeError in order to proceed.
msg = _('Message objects do not support str() because they may '
'contain non-ascii characters. '
'Please use unicode() or translate() instead.')
raise UnicodeError(msg)
def get_available_languages(domain):
"""Lists the available languages for the given translation domain.
:param domain: the domain to get languages for
"""
if domain in _AVAILABLE_LANGUAGES:
return copy.copy(_AVAILABLE_LANGUAGES[domain])
localedir = '%s_LOCALEDIR' % domain.upper()
find = lambda x: gettext.find(domain,
localedir=os.environ.get(localedir),
languages=[x])
# NOTE(mrodden): en_US should always be available (and first in case
# order matters) since our in-line message strings are en_US
language_list = ['en_US']
# NOTE(luisg): Babel <1.0 used a function called list(), which was
# renamed to locale_identifiers() in >=1.0, the requirements master list
# requires >=0.9.6, uncapped, so defensively work with both. We can remove
# this check when the master list updates to >=1.0, and update all projects
list_identifiers = (getattr(localedata, 'list', None) or
getattr(localedata, 'locale_identifiers'))
locale_identifiers = list_identifiers()
for i in locale_identifiers:
if find(i) is not None:
language_list.append(i)
# NOTE(luisg): Babel>=1.0,<1.3 has a bug where some OpenStack supported
# locales (e.g. 'zh_CN', and 'zh_TW') aren't supported even though they
# are perfectly legitimate locales:
# https://github.com/mitsuhiko/babel/issues/37
# In Babel 1.3 they fixed the bug and they support these locales, but
# they are still not explicitly "listed" by locale_identifiers().
# That is why we add the locales here explicitly if necessary so that
# they are listed as supported.
aliases = {'zh': 'zh_CN',
'zh_Hant_HK': 'zh_HK',
'zh_Hant': 'zh_TW',
'fil': 'tl_PH'}
for (locale, alias) in six.iteritems(aliases):
if locale in language_list and alias not in language_list:
language_list.append(alias)
_AVAILABLE_LANGUAGES[domain] = language_list
return copy.copy(language_list)
def translate(obj, desired_locale=None):
"""Gets the translated unicode representation of the given object.
If the object is not translatable it is returned as-is.
If the locale is None the object is translated to the system locale.
:param obj: the object to translate
:param desired_locale: the locale to translate the message to, if None the
default system locale will be used
:returns: the translated object in unicode, or the original object if
it could not be translated
"""
message = obj
if not isinstance(message, Message):
# If the object to translate is not already translatable,
# let's first get its unicode representation
message = six.text_type(obj)
if isinstance(message, Message):
# Even after unicoding() we still need to check if we are
# running with translatable unicode before translating
return message.translate(desired_locale)
return obj
def _translate_args(args, desired_locale=None):
"""Translates all the translatable elements of the given arguments object.
This method is used for translating the translatable values in method
arguments which include values of tuples or dictionaries.
If the object is not a tuple or a dictionary the object itself is
translated if it is translatable.
If the locale is None the object is translated to the system locale.
:param args: the args to translate
:param desired_locale: the locale to translate the args to, if None the
default system locale will be used
:returns: a new args object with the translated contents of the original
"""
if isinstance(args, tuple):
return tuple(translate(v, desired_locale) for v in args)
if isinstance(args, dict):
translated_dict = {}
for (k, v) in six.iteritems(args):
translated_v = translate(v, desired_locale)
translated_dict[k] = translated_v
return translated_dict
return translate(args, desired_locale)
class TranslationHandler(handlers.MemoryHandler):
"""Handler that translates records before logging them.
The TranslationHandler takes a locale and a target logging.Handler object
to forward LogRecord objects to after translating them. This handler
depends on Message objects being logged, instead of regular strings.
The handler can be configured declaratively in the logging.conf as follows:
[handlers]
keys = translatedlog, translator
[handler_translatedlog]
class = handlers.WatchedFileHandler
args = ('/var/log/api-localized.log',)
formatter = context
[handler_translator]
class = openstack.common.log.TranslationHandler
target = translatedlog
args = ('zh_CN',)
If the specified locale is not available in the system, the handler will
log in the default locale.
"""
def __init__(self, locale=None, target=None):
"""Initialize a TranslationHandler
:param locale: locale to use for translating messages
:param target: logging.Handler object to forward
LogRecord objects to after translation
"""
# NOTE(luisg): In order to allow this handler to be a wrapper for
# other handlers, such as a FileHandler, and still be able to
# configure it using logging.conf, this handler has to extend
# MemoryHandler because only the MemoryHandlers' logging.conf
# parsing is implemented such that it accepts a target handler.
handlers.MemoryHandler.__init__(self, capacity=0, target=target)
self.locale = locale
def setFormatter(self, fmt):
self.target.setFormatter(fmt)
def emit(self, record):
# We save the message from the original record to restore it
# after translation, so other handlers are not affected by this
original_msg = record.msg
original_args = record.args
try:
self._translate_and_log_record(record)
finally:
record.msg = original_msg
record.args = original_args
def _translate_and_log_record(self, record):
record.msg = translate(record.msg, self.locale)
# In addition to translating the message, we also need to translate
# arguments that were passed to the log method that were not part
# of the main message e.g., log.info(_('Some message %s'), this_one))
record.args = _translate_args(record.args, self.locale)
self.target.emit(record)

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# -*- coding: utf-8 -*-
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import mock
from os_cloud_config import keystone
from os_cloud_config.tests import base
class KeystoneTest(base.TestCase):
def test_initialize(self):
self._patch_client()
keystone.initialize(
'192.0.0.3', 'mytoken', 'admin@example.org', 'adminpasswd')
self.client.roles.create.assert_has_calls(
[mock.call('admin'), mock.call('Member')])
self.client.projects.create.assert_has_calls(
[mock.call('admin', None), mock.call('service', None)])
self.client.projects.find.assert_called_once_with(name='admin')
self.client.users.create.assert_called_once_with(
'admin', email='admin@example.org', password='adminpasswd',
project=self.client.projects.find.return_value)
self.client.roles.find.assert_called_once_with(name='admin')
self.client.roles.grant.assert_called_once_with(
self.client.roles.find.return_value,
user=self.client.users.create.return_value,
project=self.client.projects.find.return_value)
def test_initialize_for_swift(self):
self._patch_client()
keystone.initialize_for_swift('192.0.0.3', 'mytoken')
self.client.roles.create.assert_has_calls(
[mock.call('swiftoperator'), mock.call('ResellerAdmin')])
def test_initialize_for_heat(self):
self._patch_client()
keystone.initialize_for_heat('192.0.0.3', 'mytoken', 'heatadminpasswd')
self.client.domains.create.assert_called_once_with(
'heat', description='Owns users and projects created by heat')
self.client.users.create.assert_called_once_with(
'heat_domain_admin',
description='Manages users and projects created by heat',
domain=self.client.domains.create.return_value,
password='heatadminpasswd')
self.client.roles.find.assert_called_once_with(name='admin')
self.client.roles.grant.assert_called_once_with(
self.client.roles.find.return_value,
user=self.client.users.create.return_value,
domain=self.client.domains.create.return_value)
@mock.patch('os_cloud_config.keystone.ksclient.Client')
def test_create_admin_client(self, client):
self.assertEqual(
client.return_value,
keystone._create_admin_client('192.0.0.3', 'mytoken'))
client.assert_called_once_with(endpoint='http://192.0.0.3:35357/v3',
token='mytoken')
def _patch_client(self):
self.client = mock.MagicMock()
self.create_admin_client_patcher = mock.patch(
'os_cloud_config.keystone._create_admin_client')
create_admin_client = self.create_admin_client_patcher.start()
self.addCleanup(self._patch_client_cleanup)
create_admin_client.return_value = self.client
def _patch_client_cleanup(self):
self.create_admin_client_patcher.stop()
self.client = None

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pbr>=0.6,<1.0
Babel>=1.3
python-keystoneclient>=0.6.0
oslo.config>=1.2.0

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coverage>=3.6
discover
fixtures>=0.3.14
mock>=1.0
python-subunit>=0.0.18
sphinx>=1.1.2,<1.2
oslo.sphinx