279 lines
10 KiB
Python
279 lines
10 KiB
Python
# Copyright 2012-2013 OpenStack Foundation
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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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#
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"""Service action implementations"""
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import logging
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from novaclient import api_versions
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from osc_lib.command import command
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from osc_lib import exceptions
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from osc_lib import utils
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from openstackclient.i18n import _
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LOG = logging.getLogger(__name__)
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class DeleteService(command.Command):
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_description = _("Delete compute service(s)")
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def get_parser(self, prog_name):
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parser = super(DeleteService, self).get_parser(prog_name)
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parser.add_argument(
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"service",
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metavar="<service>",
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nargs='+',
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help=_("Compute service(s) to delete (ID only). If using "
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"``--os-compute-api-version`` 2.53 or greater, the ID is "
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"a UUID which can be retrieved by listing compute services "
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"using the same 2.53+ microversion.")
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)
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return parser
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def take_action(self, parsed_args):
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compute_client = self.app.client_manager.compute
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result = 0
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for s in parsed_args.service:
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try:
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compute_client.services.delete(s)
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except Exception as e:
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result += 1
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LOG.error(_("Failed to delete compute service with "
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"ID '%(service)s': %(e)s"), {'service': s, 'e': e})
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if result > 0:
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total = len(parsed_args.service)
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msg = (_("%(result)s of %(total)s compute services failed "
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"to delete.") % {'result': result, 'total': total})
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raise exceptions.CommandError(msg)
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class ListService(command.Lister):
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_description = _("List compute services. Using "
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"``--os-compute-api-version`` 2.53 or greater will "
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"return the ID as a UUID value which can be used to "
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"uniquely identify the service in a multi-cell "
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"deployment.")
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def get_parser(self, prog_name):
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parser = super(ListService, self).get_parser(prog_name)
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parser.add_argument(
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"--host",
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metavar="<host>",
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help=_("List services on specified host (name only)")
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)
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parser.add_argument(
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"--service",
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metavar="<service>",
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help=_("List only specified service binaries (name only). For "
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"example, ``nova-compute``, ``nova-conductor``, etc.")
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)
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parser.add_argument(
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"--long",
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action="store_true",
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default=False,
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help=_("List additional fields in output")
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)
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return parser
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def take_action(self, parsed_args):
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compute_client = self.app.client_manager.compute
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if parsed_args.long:
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columns = (
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"ID",
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"Binary",
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"Host",
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"Zone",
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"Status",
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"State",
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"Updated At",
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"Disabled Reason"
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)
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else:
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columns = (
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"ID",
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"Binary",
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"Host",
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"Zone",
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"Status",
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"State",
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"Updated At"
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)
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data = compute_client.services.list(parsed_args.host,
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parsed_args.service)
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return (columns,
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(utils.get_item_properties(
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s, columns,
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) for s in data))
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class SetService(command.Command):
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_description = _("Set compute service properties")
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def get_parser(self, prog_name):
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parser = super(SetService, self).get_parser(prog_name)
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parser.add_argument(
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"host",
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metavar="<host>",
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help=_("Name of host")
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)
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parser.add_argument(
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"service",
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metavar="<service>",
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help=_("Name of service (Binary name), for example "
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"``nova-compute``")
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)
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enabled_group = parser.add_mutually_exclusive_group()
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enabled_group.add_argument(
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"--enable",
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action="store_true",
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help=_("Enable service")
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)
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enabled_group.add_argument(
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"--disable",
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action="store_true",
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help=_("Disable service")
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)
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parser.add_argument(
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"--disable-reason",
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default=None,
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metavar="<reason>",
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help=_("Reason for disabling the service (in quotes). "
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"Should be used with --disable option.")
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)
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up_down_group = parser.add_mutually_exclusive_group()
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up_down_group.add_argument(
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'--up',
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action='store_true',
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help=_('Force up service. Requires ``--os-compute-api-version`` '
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'2.11 or greater.'),
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)
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up_down_group.add_argument(
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'--down',
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action='store_true',
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help=_('Force down service. Requires ``--os-compute-api-version`` '
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'2.11 or greater.'),
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)
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return parser
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@staticmethod
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def _find_service_by_host_and_binary(cs, host, binary):
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"""Utility method to find a compute service by host and binary
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:param host: the name of the compute service host
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:param binary: the compute service binary, e.g. nova-compute
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:returns: novaclient.v2.services.Service dict-like object
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:raises: CommandError if no or multiple results were found
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"""
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services = cs.list(host=host, binary=binary)
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# Did we find anything?
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if not len(services):
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msg = _('Compute service for host "%(host)s" and binary '
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'"%(binary)s" not found.') % {
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'host': host, 'binary': binary}
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raise exceptions.CommandError(msg)
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# Did we find more than one result? This should not happen but let's
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# be safe.
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if len(services) > 1:
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# TODO(mriedem): If we have an --id option for 2.53+ then we can
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# say to use that option to uniquely identify the service.
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msg = _('Multiple compute services found for host "%(host)s" and '
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'binary "%(binary)s". Unable to proceed.') % {
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'host': host, 'binary': binary}
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raise exceptions.CommandError(msg)
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return services[0]
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def take_action(self, parsed_args):
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compute_client = self.app.client_manager.compute
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cs = compute_client.services
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if (parsed_args.enable or not parsed_args.disable) and \
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parsed_args.disable_reason:
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msg = _("Cannot specify option --disable-reason without "
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"--disable specified.")
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raise exceptions.CommandError(msg)
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# Starting with microversion 2.53, there is a single
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# PUT /os-services/{service_id} API for updating nova-compute
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# services. If 2.53+ is used we need to find the nova-compute
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# service using the --host and --service (binary) values.
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requires_service_id = (
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compute_client.api_version >= api_versions.APIVersion('2.53'))
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service_id = None
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if requires_service_id:
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# TODO(mriedem): Add an --id option so users can pass the service
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# id (as a uuid) directly rather than make us look it up using
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# host/binary.
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service_id = SetService._find_service_by_host_and_binary(
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cs, parsed_args.host, parsed_args.service).id
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result = 0
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enabled = None
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try:
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if parsed_args.enable:
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enabled = True
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if parsed_args.disable:
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enabled = False
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if enabled is not None:
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if enabled:
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args = (service_id,) if requires_service_id else (
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parsed_args.host, parsed_args.service)
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cs.enable(*args)
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else:
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if parsed_args.disable_reason:
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args = (service_id, parsed_args.disable_reason) if \
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requires_service_id else (
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parsed_args.host,
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parsed_args.service,
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parsed_args.disable_reason)
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cs.disable_log_reason(*args)
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else:
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args = (service_id,) if requires_service_id else (
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parsed_args.host, parsed_args.service)
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cs.disable(*args)
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except Exception:
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status = "enabled" if enabled else "disabled"
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LOG.error("Failed to set service status to %s", status)
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result += 1
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force_down = None
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if parsed_args.down:
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force_down = True
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if parsed_args.up:
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force_down = False
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if force_down is not None:
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if compute_client.api_version < api_versions.APIVersion(
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'2.11'):
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msg = _('--os-compute-api-version 2.11 or later is '
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'required')
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raise exceptions.CommandError(msg)
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try:
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args = (service_id, force_down) if requires_service_id else (
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parsed_args.host, parsed_args.service, force_down)
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cs.force_down(*args)
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except Exception:
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state = "down" if force_down else "up"
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LOG.error("Failed to set service state to %s", state)
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result += 1
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if result > 0:
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msg = _("Compute service %(service)s of host %(host)s failed to "
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"set.") % {"service": parsed_args.service,
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"host": parsed_args.host}
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raise exceptions.CommandError(msg)
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