# Copyright 2012-2013 OpenStack Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
"""Volume v1 Backup action implementations"""
import copy
import functools
import logging
from cliff import columns as cliff_columns
from osc_lib.command import command
from osc_lib import exceptions
from osc_lib import utils
import six
from openstackclient.i18n import _
LOG = logging.getLogger(__name__)
class VolumeIdColumn(cliff_columns.FormattableColumn):
"""Formattable column for volume ID column.
Unlike the parent FormattableColumn class, the initializer of the
class takes volume_cache as the second argument.
osc_lib.utils.get_item_properties instantiate cliff FormattableColumn
object with a single parameter "column value", so you need to pass
a partially initialized class like
``functools.partial(VolumeIdColumn, volume_cache)``.
"""
def __init__(self, value, volume_cache=None):
super(VolumeIdColumn, self).__init__(value)
self._volume_cache = volume_cache or {}
def human_readable(self):
"""Return a volume name if available
:rtype: either the volume ID or name
"""
volume_id = self._value
volume = volume_id
if volume_id in self._volume_cache.keys():
volume = self._volume_cache[volume_id].display_name
return volume
class CreateVolumeBackup(command.ShowOne):
_description = _("Create new volume backup")
def get_parser(self, prog_name):
parser = super(CreateVolumeBackup, self).get_parser(prog_name)
parser.add_argument(
'volume',
metavar='<volume>',
help=_('Volume to backup (name or ID)'),
)
parser.add_argument(
'--container',
metavar='<container>',
required=False,
help=_('Optional backup container name'),
)
parser.add_argument(
'--name',
metavar='<name>',
help=_('Name of the backup'),
)
parser.add_argument(
'--description',
metavar='<description>',
help=_('Description of the backup'),
)
return parser
def take_action(self, parsed_args):
volume_client = self.app.client_manager.volume
volume_id = utils.find_resource(volume_client.volumes,
parsed_args.volume).id
backup = volume_client.backups.create(
volume_id,
parsed_args.container,
parsed_args.name,
parsed_args.description
)
backup._info.pop('links')
return zip(*sorted(six.iteritems(backup._info)))
class DeleteVolumeBackup(command.Command):
_description = _("Delete volume backup(s)")
def get_parser(self, prog_name):
parser = super(DeleteVolumeBackup, self).get_parser(prog_name)
parser.add_argument(
'backups',
metavar='<backup>',
nargs="+",
help=_('Backup(s) to delete (name or ID)'),
)
return parser
def take_action(self, parsed_args):
volume_client = self.app.client_manager.volume
result = 0
for i in parsed_args.backups:
try:
backup_id = utils.find_resource(
volume_client.backups, i).id
volume_client.backups.delete(backup_id)
except Exception as e:
result += 1
LOG.error(_("Failed to delete backup with "
"name or ID '%(backup)s': %(e)s"),
{'backup': i, 'e': e})
if result > 0:
total = len(parsed_args.backups)
msg = (_("%(result)s of %(total)s backups failed "
"to delete.") % {'result': result, 'total': total})
raise exceptions.CommandError(msg)
class ListVolumeBackup(command.Lister):
_description = _("List volume backups")
def get_parser(self, prog_name):
parser = super(ListVolumeBackup, self).get_parser(prog_name)
parser.add_argument(
'--long',
action='store_true',
default=False,
help=_('List additional fields in output'),
)
parser.add_argument(
"--name",
metavar="<name>",
help=_("Filters results by the backup name")
)
parser.add_argument(
"--status",
metavar="<status>",
choices=['creating', 'available', 'deleting',
'error', 'restoring', 'error_restoring'],
help=_("Filters results by the backup status "
"('creating', 'available', 'deleting', "
"'error', 'restoring' or 'error_restoring')")
)
parser.add_argument(
"--volume",
metavar="<volume>",
help=_("Filters results by the volume which they "
"backup (name or ID)")
)
parser.add_argument(
'--all-projects',
action='store_true',
default=False,
help=_('Include all projects (admin only)'),
)
return parser
def take_action(self, parsed_args):
volume_client = self.app.client_manager.volume
if parsed_args.long:
columns = ['ID', 'Name', 'Description', 'Status', 'Size',
'Availability Zone', 'Volume ID', 'Container']
column_headers = copy.deepcopy(columns)
column_headers[6] = 'Volume'
else:
columns = ['ID', 'Name', 'Description', 'Status', 'Size']
column_headers = columns
# Cache the volume list
volume_cache = {}
try:
for s in volume_client.volumes.list():
volume_cache[s.id] = s
except Exception:
# Just forget it if there's any trouble
pass
VolumeIdColumnWithCache = functools.partial(VolumeIdColumn,
volume_cache=volume_cache)
filter_volume_id = None
if parsed_args.volume:
filter_volume_id = utils.find_resource(volume_client.volumes,
parsed_args.volume).id
search_opts = {
'name': parsed_args.name,
'status': parsed_args.status,
'volume_id': filter_volume_id,
'all_tenants': parsed_args.all_projects,
}
data = volume_client.backups.list(
search_opts=search_opts,
)
return (column_headers,
(utils.get_item_properties(
s, columns,
formatters={'Volume ID': VolumeIdColumnWithCache},
) for s in data))
class RestoreVolumeBackup(command.Command):
_description = _("Restore volume backup")
def get_parser(self, prog_name):
parser = super(RestoreVolumeBackup, self).get_parser(prog_name)
parser.add_argument(
'backup',
metavar='<backup>',
help=_('Backup to restore (name or ID)')
)
parser.add_argument(
'volume',
metavar='<volume>',
help=_('Volume to restore to (name or ID)')
)
return parser
def take_action(self, parsed_args):
volume_client = self.app.client_manager.volume
backup = utils.find_resource(volume_client.backups,
parsed_args.backup)
destination_volume = utils.find_resource(volume_client.volumes,
parsed_args.volume)
return volume_client.restores.restore(backup.id,
destination_volume.id)
class ShowVolumeBackup(command.ShowOne):
_description = _("Display volume backup details")
def get_parser(self, prog_name):
parser = super(ShowVolumeBackup, self).get_parser(prog_name)
parser.add_argument(
'backup',
metavar='<backup>',
help=_('Backup to display (name or ID)')
)
return parser
def take_action(self, parsed_args):
volume_client = self.app.client_manager.volume
backup = utils.find_resource(volume_client.backups,
parsed_args.backup)
backup._info.pop('links')
return zip(*sorted(six.iteritems(backup._info)))