334 lines
13 KiB
Python
334 lines
13 KiB
Python
# 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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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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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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import uuid
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from oslo_log import log
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from keystone.common import driver_hints
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from keystone.common import provider_api
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import keystone.conf
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from keystone import exception
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from keystone.server import backends
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CONF = keystone.conf.CONF
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LOG = log.getLogger(__name__)
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PROVIDERS = provider_api.ProviderAPIs
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class Bootstrapper(object):
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def __init__(self):
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backends.load_backends()
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self.admin_password = None
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self.admin_username = None
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self.project_id = None
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self.project_name = None
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self.reader_role_id = None
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self.reader_role_name = 'reader'
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self.member_role_id = None
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self.member_role_name = 'member'
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self.admin_role_id = None
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self.admin_role_name = None
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self.region_id = None
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self.service_name = None
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self.public_url = None
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self.internal_url = None
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self.admin_url = None
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self.endpoints = {}
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self.default_domain_id = None
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self.admin_user_id = None
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def bootstrap(self):
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# NOTE(morganfainberg): Ensure the default domain is in-fact created
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self._bootstrap_default_domain()
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self._bootstrap_project()
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self._bootstrap_admin_user()
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self._bootstrap_reader_role()
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self._bootstrap_member_role()
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self._bootstrap_admin_role()
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self._bootstrap_project_role_assignment()
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self._bootstrap_system_role_assignment()
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self._bootstrap_region()
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self._bootstrap_catalog()
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def _bootstrap_default_domain(self):
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default_domain = {
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'id': CONF.identity.default_domain_id,
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'name': 'Default',
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'enabled': True,
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'description': 'The default domain'
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}
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try:
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PROVIDERS.resource_api.create_domain(
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domain_id=default_domain['id'],
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domain=default_domain)
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LOG.info('Created domain %s', default_domain['id'])
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except exception.Conflict:
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# NOTE(morganfainberg): Domain already exists, continue on.
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LOG.info('Domain %s already exists, skipping creation.',
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default_domain['id'])
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self.default_domain_id = default_domain['id']
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def _bootstrap_project(self):
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try:
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project_id = uuid.uuid4().hex
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project = {
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'enabled': True,
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'id': project_id,
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'domain_id': self.default_domain_id,
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'description': 'Bootstrap project for initializing the cloud.',
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'name': self.project_name
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}
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PROVIDERS.resource_api.create_project(project_id, project)
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LOG.info('Created project %s', self.project_name)
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except exception.Conflict:
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LOG.info('Project %s already exists, skipping creation.',
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self.project_name)
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project = PROVIDERS.resource_api.get_project_by_name(
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self.project_name, self.default_domain_id
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)
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self.project_id = project['id']
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def _ensure_role_exists(self, role_name):
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# NOTE(morganfainberg): Do not create the role if it already exists.
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try:
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role_id = uuid.uuid4().hex
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role = {'name': role_name, 'id': role_id}
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role = PROVIDERS.role_api.create_role(role_id, role)
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LOG.info('Created role %s', role_name)
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return role
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except exception.Conflict:
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LOG.info('Role %s exists, skipping creation.', role_name)
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# NOTE(davechen): There is no backend method to get the role
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# by name, so build the hints to list the roles and filter by
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# name instead.
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hints = driver_hints.Hints()
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hints.add_filter('name', role_name)
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# Only return global roles, domain-specific roles can't be used in
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# system assignments and bootstrap isn't designed to work with
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# domain-specific roles.
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hints.add_filter('domain_id', None)
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# NOTE(lbragstad): Global roles are unique based on name. At this
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# point we should be safe to return the first, and only, element in
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# the list.
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return PROVIDERS.role_api.list_roles(hints)[0]
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def _ensure_implied_role(self, prior_role_id, implied_role_id):
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try:
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PROVIDERS.role_api.create_implied_role(prior_role_id,
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implied_role_id)
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LOG.info(
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'Created implied role where %s implies %s',
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prior_role_id,
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implied_role_id
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)
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except exception.Conflict:
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LOG.info(
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'Implied role where %s implies %s exists, skipping creation.',
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prior_role_id,
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implied_role_id
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)
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def _bootstrap_reader_role(self):
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role = self._ensure_role_exists(self.reader_role_name)
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self.reader_role_id = role['id']
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def _bootstrap_member_role(self):
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role = self._ensure_role_exists(self.member_role_name)
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self.member_role_id = role['id']
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self._ensure_implied_role(self.member_role_id, self.reader_role_id)
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def _bootstrap_admin_role(self):
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role = self._ensure_role_exists(self.admin_role_name)
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self.admin_role_id = role['id']
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self._ensure_implied_role(self.admin_role_id, self.member_role_id)
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def _bootstrap_admin_user(self):
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# NOTE(morganfainberg): Do not create the user if it already exists.
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try:
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user = PROVIDERS.identity_api.get_user_by_name(
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self.admin_username, self.default_domain_id
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)
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LOG.info('User %s already exists, skipping creation.',
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self.admin_username)
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# If the user is not enabled, re-enable them. This also helps
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# provide some useful logging output later.
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update = {}
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enabled = user['enabled']
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if not enabled:
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update['enabled'] = True
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try:
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PROVIDERS.identity_api.driver.authenticate(
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user['id'], self.admin_password
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)
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except AssertionError:
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# This means that authentication failed and that we need to
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# update the user's password. This is going to persist a
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# revocation event that will make all previous tokens for the
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# user invalid, which is OK because it falls within the scope
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# of revocation. If a password changes, we shouldn't be able to
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# use tokens obtained with an old password.
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update['password'] = self.admin_password
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# Only make a call to update the user if the password has changed
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# or the user was previously disabled. This allows bootstrap to act
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# as a recovery tool, without having to create a new user.
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if update:
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user = PROVIDERS.identity_api.update_user(
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user['id'], update
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)
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LOG.info('Reset password for user %s.', self.admin_username)
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if not enabled and user['enabled']:
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# Although we always try to enable the user, this log
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# message only makes sense if we know that the user was
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# previously disabled.
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LOG.info('Enabled user %s.', self.admin_username)
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except exception.UserNotFound:
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user = PROVIDERS.identity_api.create_user(
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user_ref={
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'name': self.admin_username,
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'enabled': True,
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'domain_id': self.default_domain_id,
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'password': self.admin_password
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}
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)
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LOG.info('Created user %s', self.admin_username)
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self.admin_user_id = user['id']
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def _bootstrap_project_role_assignment(self):
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try:
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PROVIDERS.assignment_api.add_role_to_user_and_project(
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user_id=self.admin_user_id,
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project_id=self.project_id,
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role_id=self.admin_role_id
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)
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LOG.info('Granted %(role)s on %(project)s to user'
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' %(username)s.',
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{'role': self.admin_role_name,
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'project': self.project_name,
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'username': self.admin_username})
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except exception.Conflict:
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LOG.info('User %(username)s already has %(role)s on '
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'%(project)s.',
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{'username': self.admin_username,
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'role': self.admin_role_name,
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'project': self.project_name})
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def _bootstrap_system_role_assignment(self):
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# NOTE(lbragstad): We need to make sure a user has at least one role on
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# the system. Otherwise it's possible for administrators to lock
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# themselves out of system-level APIs in their deployment. This is
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# considered backwards compatible because even if the assignment
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# exists, it needs to be enabled through oslo.policy configuration
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# options to be enforced.
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try:
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PROVIDERS.assignment_api.create_system_grant_for_user(
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self.admin_user_id, self.admin_role_id
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)
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LOG.info('Granted %(role)s on the system to user'
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' %(username)s.',
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{'role': self.admin_role_name,
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'username': self.admin_username})
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except exception.Conflict:
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LOG.info('User %(username)s already has %(role)s on '
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'the system.',
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{'username': self.admin_username,
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'role': self.admin_role_name})
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def _bootstrap_region(self):
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if self.region_id:
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try:
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PROVIDERS.catalog_api.create_region(
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region_ref={'id': self.region_id}
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)
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LOG.info('Created region %s', self.region_id)
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except exception.Conflict:
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LOG.info('Region %s exists, skipping creation.',
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self.region_id)
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def _bootstrap_catalog(self):
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if self.public_url or self.admin_url or self.internal_url:
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hints = driver_hints.Hints()
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hints.add_filter('type', 'identity')
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services = PROVIDERS.catalog_api.list_services(hints)
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if services:
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service = services[0]
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hints = driver_hints.Hints()
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hints.add_filter('service_id', service['id'])
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if self.region_id:
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hints.add_filter('region_id', self.region_id)
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endpoints = PROVIDERS.catalog_api.list_endpoints(hints)
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else:
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service_id = uuid.uuid4().hex
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service = {
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'id': service_id, 'name': self.service_name,
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'type': 'identity', 'enabled': True
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}
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PROVIDERS.catalog_api.create_service(service_id, service)
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endpoints = []
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self.service_id = service['id']
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available_interfaces = {e['interface']: e for e in endpoints}
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expected_endpoints = {'public': self.public_url,
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'internal': self.internal_url,
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'admin': self.admin_url}
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for interface, url in expected_endpoints.items():
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if not url:
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# not specified to bootstrap command
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continue
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try:
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endpoint_ref = available_interfaces[interface]
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except KeyError:
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endpoint_ref = {'id': uuid.uuid4().hex,
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'interface': interface,
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'url': url,
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'service_id': self.service_id,
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'enabled': True}
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if self.region_id:
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endpoint_ref['region_id'] = self.region_id
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PROVIDERS.catalog_api.create_endpoint(
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endpoint_id=endpoint_ref['id'],
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endpoint_ref=endpoint_ref)
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LOG.info('Created %(interface)s endpoint %(url)s',
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{'interface': interface, 'url': url})
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else:
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# NOTE(jamielennox): electing not to update existing
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# endpoints here. There may be call to do so in future.
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LOG.info('Skipping %s endpoint as already created',
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interface)
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self.endpoints[interface] = endpoint_ref['id']
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