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
129 lines
4.9 KiB
Python
129 lines
4.9 KiB
Python
# Copyright 2012 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 sys
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from oslo.config import cfg
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from cloudbaseinit.metadata import factory as metadata_factory
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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 as plugins_base
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from cloudbaseinit.plugins.common import factory as plugins_factory
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opts = [
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cfg.BoolOpt('allow_reboot', default=True, help='Allows OS reboots '
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'requested by plugins'),
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cfg.BoolOpt('stop_service_on_exit', default=True, help='In case of '
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'execution as a service, specifies if the service '
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'must be gracefully stopped before exiting'),
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]
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CONF = cfg.CONF
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CONF.register_opts(opts)
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LOG = logging.getLogger(__name__)
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class InitManager(object):
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_PLUGINS_CONFIG_SECTION = 'Plugins'
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def _get_plugins_section(self, instance_id):
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if not instance_id:
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return self._PLUGINS_CONFIG_SECTION
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else:
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return instance_id + "/" + self._PLUGINS_CONFIG_SECTION
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def _get_plugin_status(self, osutils, instance_id, plugin_name):
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return osutils.get_config_value(plugin_name,
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self._get_plugins_section(instance_id))
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def _set_plugin_status(self, osutils, instance_id, plugin_name, status):
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osutils.set_config_value(plugin_name, status,
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self._get_plugins_section(instance_id))
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def _exec_plugin(self, osutils, service, plugin, instance_id, shared_data):
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plugin_name = plugin.get_name()
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status = self._get_plugin_status(osutils, instance_id, plugin_name)
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if status == plugins_base.PLUGIN_EXECUTION_DONE:
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LOG.debug('Plugin \'%s\' execution already done, skipping',
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plugin_name)
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else:
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LOG.info('Executing plugin \'%s\'', plugin_name)
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try:
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(status, reboot_required) = plugin.execute(service,
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shared_data)
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self._set_plugin_status(osutils, instance_id, plugin_name,
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status)
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return reboot_required
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except Exception as ex:
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LOG.error('plugin \'%(plugin_name)s\' failed with error '
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'\'%(ex)s\'', {'plugin_name': plugin_name, 'ex': ex})
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LOG.exception(ex)
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def _check_plugin_os_requirements(self, osutils, plugin):
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supported = False
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plugin_name = plugin.get_name()
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(required_platform, min_os_version) = plugin.get_os_requirements()
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if required_platform and sys.platform != required_platform:
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LOG.debug('Skipping plugin: \'%s\'. Platform not supported' %
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plugin_name)
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else:
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if not min_os_version:
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supported = True
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else:
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os_major, os_minor = min_os_version
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if osutils.check_os_version(os_major, os_minor):
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supported = True
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else:
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LOG.debug('Skipping plugin: \'%s\'. OS version not '
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'supported' % plugin_name)
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return supported
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def configure_host(self):
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osutils = osutils_factory.get_os_utils()
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osutils.wait_for_boot_completion()
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service = metadata_factory.get_metadata_service()
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LOG.info('Metadata service loaded: \'%s\'' %
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service.get_name())
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instance_id = service.get_instance_id()
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LOG.debug('Instance id: %s', instance_id)
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plugins = plugins_factory.load_plugins()
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plugins_shared_data = {}
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reboot_required = False
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try:
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for plugin in plugins:
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if self._check_plugin_os_requirements(osutils, plugin):
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if self._exec_plugin(osutils, service, plugin,
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instance_id, plugins_shared_data):
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reboot_required = True
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if CONF.allow_reboot:
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break
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finally:
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service.cleanup()
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if reboot_required and CONF.allow_reboot:
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try:
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osutils.reboot()
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except Exception as ex:
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LOG.error('reboot failed with error \'%s\'' % ex)
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elif CONF.stop_service_on_exit:
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osutils.terminate()
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