python-openstackclient/openstackclient/compute/v2/aggregate.py
lihaijing d15bbada73 Replace six.iteritems() with .items()
1. As mentioned in [1], we should avoid using six.iteritems to achieve
   iterators. We can use dict.items instead, as it will return iterators
   in PY3 as well. And dict.items/keys will more readable.

2. In py2, the performance about list should be negligible,
   see the link [2].

[1] https://wiki.openstack.org/wiki/Python3
[2] http://lists.openstack.org/pipermail/openstack-dev/2015-June/066391.html

Co-Authored-By: Akihiro Motoki <amotoki@gmail.com>
Change-Id: I4b9edb326444264c0f6c4ad281acaac356a07e85
Implements: blueprint replace-iteritems-with-items
2020-01-09 18:41:29 +09:00

408 lines
13 KiB
Python

# Copyright 2012 OpenStack Foundation
# Copyright 2013 Nebula Inc.
#
# 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.
#
"""Compute v2 Aggregate action implementations"""
import logging
from osc_lib.cli import format_columns
from osc_lib.cli import parseractions
from osc_lib.command import command
from osc_lib import exceptions
from osc_lib import utils
from openstackclient.i18n import _
LOG = logging.getLogger(__name__)
class AddAggregateHost(command.ShowOne):
_description = _("Add host to aggregate")
def get_parser(self, prog_name):
parser = super(AddAggregateHost, self).get_parser(prog_name)
parser.add_argument(
'aggregate',
metavar='<aggregate>',
help=_("Aggregate (name or ID)")
)
parser.add_argument(
'host',
metavar='<host>',
help=_("Host to add to <aggregate>")
)
return parser
def take_action(self, parsed_args):
compute_client = self.app.client_manager.compute
aggregate = utils.find_resource(
compute_client.aggregates,
parsed_args.aggregate,
)
data = compute_client.aggregates.add_host(aggregate, parsed_args.host)
info = {}
info.update(data._info)
# Special mapping for columns to make the output easier to read:
# 'metadata' --> 'properties'
info.update(
{
'hosts': format_columns.ListColumn(info.pop('hosts')),
'properties': format_columns.DictColumn(info.pop('metadata')),
},
)
return zip(*sorted(info.items()))
class CreateAggregate(command.ShowOne):
_description = _("Create a new aggregate")
def get_parser(self, prog_name):
parser = super(CreateAggregate, self).get_parser(prog_name)
parser.add_argument(
"name",
metavar="<name>",
help=_("New aggregate name")
)
parser.add_argument(
"--zone",
metavar="<availability-zone>",
help=_("Availability zone name")
)
parser.add_argument(
"--property",
metavar="<key=value>",
action=parseractions.KeyValueAction,
help=_("Property to add to this aggregate "
"(repeat option to set multiple properties)")
)
return parser
def take_action(self, parsed_args):
compute_client = self.app.client_manager.compute
info = {}
data = compute_client.aggregates.create(
parsed_args.name,
parsed_args.zone,
)
info.update(data._info)
if parsed_args.property:
info.update(compute_client.aggregates.set_metadata(
data,
parsed_args.property,
)._info)
# Special mapping for columns to make the output easier to read:
# 'metadata' --> 'properties'
hosts = None
properties = None
if 'hosts' in info.keys():
hosts = format_columns.ListColumn(info.pop('hosts'))
if 'metadata' in info.keys():
properties = format_columns.DictColumn(info.pop('metadata'))
info.update(
{
'hosts': hosts,
'properties': properties,
},
)
return zip(*sorted(info.items()))
class DeleteAggregate(command.Command):
_description = _("Delete existing aggregate(s)")
def get_parser(self, prog_name):
parser = super(DeleteAggregate, self).get_parser(prog_name)
parser.add_argument(
'aggregate',
metavar='<aggregate>',
nargs='+',
help=_("Aggregate(s) to delete (name or ID)")
)
return parser
def take_action(self, parsed_args):
compute_client = self.app.client_manager.compute
result = 0
for a in parsed_args.aggregate:
try:
data = utils.find_resource(
compute_client.aggregates, a)
compute_client.aggregates.delete(data.id)
except Exception as e:
result += 1
LOG.error(_("Failed to delete aggregate with name or "
"ID '%(aggregate)s': %(e)s"),
{'aggregate': a, 'e': e})
if result > 0:
total = len(parsed_args.aggregate)
msg = (_("%(result)s of %(total)s aggregates failed "
"to delete.") % {'result': result, 'total': total})
raise exceptions.CommandError(msg)
class ListAggregate(command.Lister):
_description = _("List all aggregates")
def get_parser(self, prog_name):
parser = super(ListAggregate, self).get_parser(prog_name)
parser.add_argument(
'--long',
action='store_true',
default=False,
help=_("List additional fields in output")
)
return parser
def take_action(self, parsed_args):
compute_client = self.app.client_manager.compute
data = compute_client.aggregates.list()
if parsed_args.long:
# Remove availability_zone from metadata because Nova doesn't
for d in data:
if 'availability_zone' in d.metadata:
d.metadata.pop('availability_zone')
# This is the easiest way to change column headers
column_headers = (
"ID",
"Name",
"Availability Zone",
"Properties",
)
columns = (
"ID",
"Name",
"Availability Zone",
"Metadata",
)
else:
column_headers = columns = (
"ID",
"Name",
"Availability Zone",
)
return (column_headers,
(utils.get_item_properties(
s, columns,
formatters={
'Hosts': format_columns.ListColumn,
'Metadata': format_columns.DictColumn,
},
) for s in data))
class RemoveAggregateHost(command.ShowOne):
_description = _("Remove host from aggregate")
def get_parser(self, prog_name):
parser = super(RemoveAggregateHost, self).get_parser(prog_name)
parser.add_argument(
'aggregate',
metavar='<aggregate>',
help=_("Aggregate (name or ID)")
)
parser.add_argument(
'host',
metavar='<host>',
help=_("Host to remove from <aggregate>")
)
return parser
def take_action(self, parsed_args):
compute_client = self.app.client_manager.compute
aggregate = utils.find_resource(
compute_client.aggregates,
parsed_args.aggregate,
)
data = compute_client.aggregates.remove_host(
aggregate,
parsed_args.host,
)
info = {}
info.update(data._info)
# Special mapping for columns to make the output easier to read:
# 'metadata' --> 'properties'
info.update(
{
'hosts': format_columns.ListColumn(info.pop('hosts')),
'properties': format_columns.DictColumn(info.pop('metadata')),
},
)
return zip(*sorted(info.items()))
class SetAggregate(command.Command):
_description = _("Set aggregate properties")
def get_parser(self, prog_name):
parser = super(SetAggregate, self).get_parser(prog_name)
parser.add_argument(
'aggregate',
metavar='<aggregate>',
help=_("Aggregate to modify (name or ID)")
)
parser.add_argument(
'--name',
metavar='<name>',
help=_("Set aggregate name")
)
parser.add_argument(
"--zone",
metavar="<availability-zone>",
help=_("Set availability zone name")
)
parser.add_argument(
"--property",
metavar="<key=value>",
action=parseractions.KeyValueAction,
help=_("Property to set on <aggregate> "
"(repeat option to set multiple properties)")
)
parser.add_argument(
"--no-property",
dest="no_property",
action="store_true",
help=_("Remove all properties from <aggregate> "
"(specify both --property and --no-property to "
"overwrite the current properties)"),
)
return parser
def take_action(self, parsed_args):
compute_client = self.app.client_manager.compute
aggregate = utils.find_resource(
compute_client.aggregates,
parsed_args.aggregate,
)
kwargs = {}
if parsed_args.name:
kwargs['name'] = parsed_args.name
if parsed_args.zone:
kwargs['availability_zone'] = parsed_args.zone
if kwargs:
compute_client.aggregates.update(
aggregate,
kwargs
)
set_property = {}
if parsed_args.no_property:
# NOTE(RuiChen): "availability_zone" is removed from response of
# aggregate show and create commands, don't see it
# anywhere, so pop it, avoid the unexpected server
# exception(can't unset the availability zone from
# aggregate metadata in nova).
set_property.update({key: None
for key in aggregate.metadata.keys()
if key != 'availability_zone'})
if parsed_args.property:
set_property.update(parsed_args.property)
if set_property:
compute_client.aggregates.set_metadata(
aggregate,
set_property
)
class ShowAggregate(command.ShowOne):
_description = _("Display aggregate details")
def get_parser(self, prog_name):
parser = super(ShowAggregate, self).get_parser(prog_name)
parser.add_argument(
'aggregate',
metavar='<aggregate>',
help=_("Aggregate to display (name or ID)")
)
return parser
def take_action(self, parsed_args):
compute_client = self.app.client_manager.compute
data = utils.find_resource(
compute_client.aggregates,
parsed_args.aggregate,
)
# Remove availability_zone from metadata because Nova doesn't
if 'availability_zone' in data.metadata:
data.metadata.pop('availability_zone')
# Special mapping for columns to make the output easier to read:
# 'metadata' --> 'properties'
data._info.update(
{
'hosts': format_columns.ListColumn(
data._info.pop('hosts')
),
'properties': format_columns.DictColumn(
data._info.pop('metadata')
),
},
)
info = {}
info.update(data._info)
return zip(*sorted(info.items()))
class UnsetAggregate(command.Command):
_description = _("Unset aggregate properties")
def get_parser(self, prog_name):
parser = super(UnsetAggregate, self).get_parser(prog_name)
parser.add_argument(
"aggregate",
metavar="<aggregate>",
help=_("Aggregate to modify (name or ID)")
)
parser.add_argument(
"--property",
metavar="<key>",
action='append',
help=_("Property to remove from aggregate "
"(repeat option to remove multiple properties)")
)
return parser
def take_action(self, parsed_args):
compute_client = self.app.client_manager.compute
aggregate = utils.find_resource(
compute_client.aggregates,
parsed_args.aggregate)
unset_property = {}
if parsed_args.property:
unset_property.update({key: None for key in parsed_args.property})
if unset_property:
compute_client.aggregates.set_metadata(aggregate,
unset_property)