4a2fd82b07
In the event that a user provides a hypervisor name rather than an ID to the 'hypervisor show' command, passing 'details=True' (the default) to 'find_hypervisor' will ensure we get the detailed response we need. However, this comes at the cost of retrieving reams of additional irrelevant data for all the other hypervisors. Rather than doing this, use a summary view and then a second call to fetch only the hypervisor we care about. Change-Id: I92b53802e41a962c6f916c3a111dc2de7c12d0fc Signed-off-by: Stephen Finucane <stephenfin@redhat.com> Closes-bug: #2072965
252 lines
8.6 KiB
Python
252 lines
8.6 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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"""Hypervisor action implementations"""
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import json
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import re
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from openstack import exceptions as sdk_exceptions
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from openstack import utils as sdk_utils
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from osc_lib.cli import format_columns
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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.common import pagination
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from openstackclient.i18n import _
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def _get_hypervisor_columns(item, client):
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column_map = {'name': 'hypervisor_hostname'}
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hidden_columns = ['location', 'servers']
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if sdk_utils.supports_microversion(client, '2.88'):
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hidden_columns.extend(
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[
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'current_workload',
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'disk_available',
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'local_disk_free',
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'local_disk_size',
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'local_disk_used',
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'memory_free',
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'memory_size',
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'memory_used',
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'running_vms',
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'vcpus_used',
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'vcpus',
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]
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)
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else:
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column_map.update(
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{
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'disk_available': 'disk_available_least',
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'local_disk_free': 'free_disk_gb',
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'local_disk_size': 'local_gb',
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'local_disk_used': 'local_gb_used',
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'memory_free': 'free_ram_mb',
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'memory_used': 'memory_mb_used',
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'memory_size': 'memory_mb',
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}
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)
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return utils.get_osc_show_columns_for_sdk_resource(
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item, column_map, hidden_columns
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)
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class ListHypervisor(command.Lister):
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_description = _("List hypervisors")
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def get_parser(self, prog_name):
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parser = super().get_parser(prog_name)
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parser.add_argument(
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'--matching',
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metavar='<hostname>',
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help=_(
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"Filter hypervisors using <hostname> substring"
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"Hypervisor Type and Host IP are not returned "
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"when using microversion 2.52 or lower"
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),
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)
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pagination.add_marker_pagination_option_to_parser(parser)
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parser.add_argument(
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'--long',
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action='store_true',
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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.sdk_connection.compute
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list_opts = {}
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if parsed_args.matching and (parsed_args.marker or parsed_args.limit):
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msg = _('--matching is not compatible with --marker or --limit')
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raise exceptions.CommandError(msg)
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if parsed_args.marker:
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if not sdk_utils.supports_microversion(compute_client, '2.33'):
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msg = _(
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'--os-compute-api-version 2.33 or greater is required to '
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'support the --marker option'
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)
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raise exceptions.CommandError(msg)
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list_opts['marker'] = parsed_args.marker
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if parsed_args.limit:
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if not sdk_utils.supports_microversion(compute_client, '2.33'):
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msg = _(
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'--os-compute-api-version 2.33 or greater is required to '
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'support the --limit option'
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)
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raise exceptions.CommandError(msg)
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list_opts['limit'] = parsed_args.limit
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if parsed_args.matching:
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list_opts['hypervisor_hostname_pattern'] = parsed_args.matching
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column_headers = (
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"ID",
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"Hypervisor Hostname",
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"Hypervisor Type",
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"Host IP",
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"State",
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)
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columns = ('id', 'name', 'hypervisor_type', 'host_ip', 'state')
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if parsed_args.long:
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if not sdk_utils.supports_microversion(compute_client, '2.88'):
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column_headers += (
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'vCPUs Used',
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'vCPUs',
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'Memory MB Used',
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'Memory MB',
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)
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columns += (
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'vcpus_used',
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'vcpus',
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'memory_used',
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'memory_size',
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)
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data = compute_client.hypervisors(**list_opts, details=True)
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return (
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column_headers,
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(utils.get_item_properties(s, columns) for s in data),
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)
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class ShowHypervisor(command.ShowOne):
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_description = _("Display hypervisor details")
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def get_parser(self, prog_name):
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parser = super().get_parser(prog_name)
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parser.add_argument(
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"hypervisor",
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metavar="<hypervisor>",
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help=_("Hypervisor to display (name or ID)"),
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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.sdk_connection.compute
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hypervisor_id = compute_client.find_hypervisor(
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parsed_args.hypervisor, ignore_missing=False, details=False
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).id
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hypervisor = compute_client.get_hypervisor(hypervisor_id).copy()
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# Some of the properties in the hypervisor object need to be processed
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# before they get reported to the user. We spend this section
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# extracting the relevant details to be reported by modifying our
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# copy of the hypervisor object.
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aggregates = compute_client.aggregates()
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hypervisor['aggregates'] = list()
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service_details = hypervisor['service_details']
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if aggregates:
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# Hypervisors in nova cells are prefixed by "<cell>@"
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if "@" in service_details['host']:
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cell, service_host = service_details['host'].split('@', 1)
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else:
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cell = None
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service_host = service_details['host']
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if cell:
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# The host aggregates are also prefixed by "<cell>@"
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member_of = [
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aggregate.name
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for aggregate in aggregates
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if cell in aggregate.name
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and service_host in aggregate.hosts
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]
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else:
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member_of = [
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aggregate.name
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for aggregate in aggregates
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if service_host in aggregate.hosts
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]
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hypervisor['aggregates'] = member_of
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try:
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if sdk_utils.supports_microversion(compute_client, '2.88'):
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uptime = hypervisor['uptime'] or ''
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del hypervisor['uptime']
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else:
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del hypervisor['uptime']
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uptime = compute_client.get_hypervisor_uptime(
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hypervisor['id']
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)['uptime']
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# Extract data from uptime value
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# format: 0 up 0, 0 users, load average: 0, 0, 0
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# example: 17:37:14 up 2:33, 3 users,
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# load average: 0.33, 0.36, 0.34
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m = re.match(
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r"\s*(.+)\sup\s+(.+),\s+(.+)\susers?,\s+load average:\s(.+)",
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uptime,
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)
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if m:
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hypervisor['host_time'] = m.group(1)
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hypervisor['uptime'] = m.group(2)
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hypervisor['users'] = m.group(3)
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hypervisor['load_average'] = m.group(4)
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except sdk_exceptions.HttpException as exc:
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if exc.status_code != 501:
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raise
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hypervisor['service_id'] = service_details['id']
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hypervisor['service_host'] = service_details['host']
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del hypervisor['service_details']
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if not sdk_utils.supports_microversion(compute_client, '2.28'):
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# microversion 2.28 transformed this to a JSON blob rather than a
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# string; on earlier fields, do this manually
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hypervisor['cpu_info'] = json.loads(hypervisor['cpu_info'] or '{}')
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display_columns, columns = _get_hypervisor_columns(
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hypervisor, compute_client
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)
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data = utils.get_dict_properties(
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hypervisor,
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columns,
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formatters={
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'cpu_info': format_columns.DictColumn,
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},
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)
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return display_columns, data
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