e9b28c51af
Some plugins support only a given platform and / or a minimum OS version. ExtendVolumesPlugin is not supported on Windows XP. This commit adds support for filtering the plugins based on OS requirements.
105 lines
4.0 KiB
Python
105 lines
4.0 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# 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 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 import base as plugins_base
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from cloudbaseinit.plugins import factory as plugins_factory
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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_plugin_status(self, osutils, plugin_name):
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return osutils.get_config_value(plugin_name,
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self._PLUGINS_CONFIG_SECTION)
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def _set_plugin_status(self, osutils, plugin_name, status):
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osutils.set_config_value(plugin_name, status,
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self._PLUGINS_CONFIG_SECTION)
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def _exec_plugin(self, osutils, service, plugin):
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plugin_name = plugin.get_name()
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status = self._get_plugin_status(osutils, plugin_name)
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if status == plugins_base.PLUGIN_EXECUTION_DONE:
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LOG.debug('Plugin \'%(plugin_name)s\' execution already done, '
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'skipping' % locals())
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else:
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LOG.info('Executing plugin \'%(plugin_name)s\'' %
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locals())
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try:
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(status, reboot_required) = plugin.execute(service)
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self._set_plugin_status(osutils, plugin_name, status)
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return reboot_required
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except Exception, ex:
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LOG.error('plugin \'%(plugin_name)s\' failed '
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'with error \'%(ex)s\'' % locals())
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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_version = map(int, osutils.get_os_version().split('.'))
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if os_version >= list(min_os_version):
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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.OSUtilsFactory().get_os_utils()
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osutils.wait_for_boot_completion()
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mdsf = metadata_factory.MetadataServiceFactory()
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service = mdsf.get_metadata_service()
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LOG.info('Metadata service loaded: \'%s\'' %
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service.get_name())
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plugins = plugins_factory.PluginFactory().load_plugins()
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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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reboot_required = True
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finally:
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service.cleanup()
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if reboot_required:
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try:
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osutils.reboot()
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except Exception, ex:
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LOG.error('reboot failed with error \'%s\'' % ex)
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else:
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osutils.terminate()
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