dd3cd540a3
Configures the Windows pagefiles on volumes identified by mount point or label. The pagefile size is currently set as system managed. Change-Id: Ibb8721854ffb62f6026abf951c96969d1a132e1f Implements: blueprint add-pagefiles-plugin Co-Authored-By: Stefan Caraiman <scaraiman@cloudbasesolutions.com>
80 lines
3.0 KiB
Python
80 lines
3.0 KiB
Python
# Copyright (c) 2017 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 os
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from oslo_log import log as oslo_logging
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from cloudbaseinit import conf as cloudbaseinit_conf
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from cloudbaseinit import exception
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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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CONF = cloudbaseinit_conf.CONF
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LOG = oslo_logging.getLogger(__name__)
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class PageFilesPlugin(base.BasePlugin):
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def _get_page_file_volumes_by_mount_point(self, osutils):
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page_file_volume_paths = []
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for mount_point in CONF.page_file_volume_mount_points:
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try:
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paths = osutils.get_volume_path_names_by_mount_point(
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mount_point)
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if paths:
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page_file_volume_paths.append(paths[0])
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except exception.ItemNotFoundException:
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LOG.info("Mount point not found: %s", mount_point)
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return page_file_volume_paths
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def _get_page_file_volumes_by_label(self, osutils):
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page_file_logical_drives = []
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logical_drives = osutils.get_logical_drives()
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for logical_drive in logical_drives:
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label = osutils.get_volume_label(logical_drive)
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if not label:
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continue
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if label.upper() in [
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v.upper() for v in CONF.page_file_volume_labels]:
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page_file_logical_drives.append(logical_drive)
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return page_file_logical_drives
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def _get_page_file_volumes(self, osutils):
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return list(set(self._get_page_file_volumes_by_mount_point(osutils)) |
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set(self._get_page_file_volumes_by_label(osutils)))
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def execute(self, service, shared_data):
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osutils = osutils_factory.get_os_utils()
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page_file_volumes = sorted(self._get_page_file_volumes(osutils))
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reboot_required = False
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if not page_file_volumes:
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LOG.info("No page file volume found, skipping configuration")
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else:
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page_files = [
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(os.path.join(v, "pagefile.sys"), 0, 0)
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for v in page_file_volumes]
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current_page_files = osutils.get_page_files()
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if sorted(current_page_files) != sorted(page_files):
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osutils.set_page_files(page_files)
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LOG.info("Page file configuration set: %s", page_files)
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reboot_required = True
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return base.PLUGIN_EXECUTE_ON_NEXT_BOOT, reboot_required
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def get_os_requirements(self):
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return 'win32', (5, 2)
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