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# 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.
#
"""Hypervisor action implementations"""
import json
import re
from novaclient import api_versions
from novaclient import exceptions as nova_exceptions
from osc_lib.cli import format_columns
from osc_lib.command import command
from osc_lib import exceptions
from osc_lib import utils
from openstackclient.i18n import _
class ListHypervisor(command.Lister):
_description = _("List hypervisors")
def get_parser(self, prog_name):
parser = super(ListHypervisor, self).get_parser(prog_name)
parser.add_argument(
'--matching',
metavar='<hostname>',
help=_("Filter hypervisors using <hostname> substring")
)
parser.add_argument(
'--marker',
metavar='<marker>',
help=_(
"The UUID of the last hypervisor of the previous page; "
"displays list of hypervisors after 'marker'. "
"(supported with --os-compute-api-version 2.33 or above)"
),
)
parser.add_argument(
'--limit',
metavar='<limit>',
type=int,
help=_(
"Maximum number of hypervisors to display. Note that there "
"is a configurable max limit on the server, and the limit "
"that is used will be the minimum of what is requested "
"here and what is configured in the server. "
"(supported with --os-compute-api-version 2.33 or above)"
),
)
parser.add_argument(
'--long',
action='store_true',
help=_("List additional fields in output")
)
return parser
def take_action(self, parsed_args):
compute_client = self.app.client_manager.compute
list_opts = {}
if parsed_args.matching and (parsed_args.marker or parsed_args.limit):
msg = _(
'--matching is not compatible with --marker or --limit'
)
raise exceptions.CommandError(msg)
if parsed_args.marker:
if compute_client.api_version < api_versions.APIVersion('2.33'):
msg = _(
'--os-compute-api-version 2.33 or greater is required to '
'support the --marker option'
)
raise exceptions.CommandError(msg)
list_opts['marker'] = parsed_args.marker
if parsed_args.limit:
if compute_client.api_version < api_versions.APIVersion('2.33'):
msg = _(
'--os-compute-api-version 2.33 or greater is required to '
'support the --limit option'
)
raise exceptions.CommandError(msg)
list_opts['limit'] = parsed_args.limit
columns = (
"ID",
"Hypervisor Hostname",
"Hypervisor Type",
"Host IP",
"State"
)
if parsed_args.long:
columns += ("vCPUs Used", "vCPUs", "Memory MB Used", "Memory MB")
if parsed_args.matching:
data = compute_client.hypervisors.search(parsed_args.matching)
else:
data = compute_client.hypervisors.list(**list_opts)
return (
columns,
(utils.get_item_properties(s, columns) for s in data),
)
class ShowHypervisor(command.ShowOne):
_description = _("Display hypervisor details")
def get_parser(self, prog_name):
parser = super(ShowHypervisor, self).get_parser(prog_name)
parser.add_argument(
"hypervisor",
metavar="<hypervisor>",
help=_("Hypervisor to display (name or ID)")
)
return parser
def take_action(self, parsed_args):
compute_client = self.app.client_manager.compute
hypervisor = utils.find_resource(compute_client.hypervisors,
parsed_args.hypervisor)._info.copy()
aggregates = compute_client.aggregates.list()
hypervisor["aggregates"] = list()
if aggregates:
# Hypervisors in nova cells are prefixed by "<cell>@"
if "@" in hypervisor['service']['host']:
cell, service_host = hypervisor['service']['host'].split(
'@', 1)
else:
cell = None
service_host = hypervisor['service']['host']
if cell:
# The host aggregates are also prefixed by "<cell>@"
member_of = [aggregate.name
for aggregate in aggregates
if cell in aggregate.name and
service_host in aggregate.hosts]
else:
member_of = [aggregate.name
for aggregate in aggregates
if service_host in aggregate.hosts]
hypervisor["aggregates"] = member_of
try:
uptime = compute_client.hypervisors.uptime(hypervisor['id'])._info
# Extract data from uptime value
# format: 0 up 0, 0 users, load average: 0, 0, 0
# example: 17:37:14 up 2:33, 3 users,
# load average: 0.33, 0.36, 0.34
m = re.match(
r"\s*(.+)\sup\s+(.+),\s+(.+)\susers?,\s+load average:\s(.+)",
uptime['uptime'])
if m:
hypervisor["host_time"] = m.group(1)
hypervisor["uptime"] = m.group(2)
hypervisor["users"] = m.group(3)
hypervisor["load_average"] = m.group(4)
except nova_exceptions.HTTPNotImplemented:
pass
hypervisor["service_id"] = hypervisor["service"]["id"]
hypervisor["service_host"] = hypervisor["service"]["host"]
del hypervisor["service"]
if compute_client.api_version < api_versions.APIVersion('2.28'):
# microversion 2.28 transformed this to a JSON blob rather than a
# string; on earlier fields, do this manually
if hypervisor['cpu_info']:
hypervisor['cpu_info'] = json.loads(hypervisor['cpu_info'])
else:
hypervisor['cpu_info'] = {}
columns = tuple(sorted(hypervisor))
data = utils.get_dict_properties(
hypervisor, columns,
formatters={
'cpu_info': format_columns.DictColumn,
})
return (columns, data)
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