c5ebf8deec
Most of the Windows-specific plugins were able to work on other platforms as well, as long as osutils provides the relevant functionalities. This restructuring is an effort for helping future additions of other platforms. Change-Id: I21a35eb6eb8e2439cfdf861c59afc51c3618a779
113 lines
4.4 KiB
Python
113 lines
4.4 KiB
Python
# Copyright 2013 Cloudbase Solutions Srl
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#
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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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#
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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 base64
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from oslo.config import cfg
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from cloudbaseinit.openstack.common import log as logging
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from cloudbaseinit.osutils import factory as osutils_factory
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from cloudbaseinit.plugins.common import base
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from cloudbaseinit.plugins.common import constants
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from cloudbaseinit.utils import crypt
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opts = [
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cfg.BoolOpt('inject_user_password', default=True, help='Set the password '
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'provided in the configuration. If False or no password is '
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'provided, a random one will be set'),
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]
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CONF = cfg.CONF
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CONF.register_opts(opts)
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CONF.import_opt('username', 'cloudbaseinit.plugins.common.createuser')
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LOG = logging.getLogger(__name__)
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class SetUserPasswordPlugin(base.BasePlugin):
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def _encrypt_password(self, ssh_pub_key, password):
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cm = crypt.CryptManager()
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with cm.load_ssh_rsa_public_key(ssh_pub_key) as rsa:
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enc_password = rsa.public_encrypt(password.encode())
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return base64.b64encode(enc_password)
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def _get_ssh_public_key(self, service):
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public_keys = service.get_public_keys()
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if public_keys:
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return list(public_keys)[0]
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def _get_password(self, service, osutils):
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if CONF.inject_user_password:
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password = service.get_admin_password()
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else:
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password = None
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if password:
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LOG.warn('Using admin_pass metadata user password. Consider '
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'changing it as soon as possible')
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else:
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# TODO(alexpilotti): setting a random password can be skipped
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# if it's already present in the shared_data, as it has already
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# been set by the CreateUserPlugin
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LOG.debug('Generating a random user password')
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# Generate a random password
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# Limit to 14 chars for compatibility with NT
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password = osutils.generate_random_password(14)
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return password
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def _set_metadata_password(self, password, service):
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if service.is_password_set:
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LOG.debug('User\'s password already set in the instance metadata '
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'and it cannot be updated in the instance metadata')
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return True
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else:
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ssh_pub_key = self._get_ssh_public_key(service)
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if ssh_pub_key:
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enc_password_b64 = self._encrypt_password(ssh_pub_key,
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password)
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return service.post_password(enc_password_b64)
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else:
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LOG.info('No SSH public key available for password encryption')
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return True
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def _set_password(self, service, osutils, user_name):
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password = self._get_password(service, osutils)
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LOG.info('Setting the user\'s password')
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osutils.set_user_password(user_name, password)
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return password
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def execute(self, service, shared_data):
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# TODO(alexpilotti): The username selection logic must be set in the
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# CreateUserPlugin instead if using CONF.username
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user_name = shared_data.get(constants.SHARED_DATA_USERNAME,
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CONF.username)
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osutils = osutils_factory.get_os_utils()
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if osutils.user_exists(user_name):
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password = self._set_password(service, osutils, user_name)
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LOG.info('Password succesfully updated for user %s' % user_name)
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# TODO(alexpilotti): encrypt with DPAPI
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shared_data[constants.SHARED_DATA_PASSWORD] = password
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if not service.can_post_password:
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LOG.info('Cannot set the password in the metadata as it is '
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'not supported by this service')
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else:
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self._set_metadata_password(password, service)
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return (base.PLUGIN_EXECUTION_DONE, False)
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