horizon/openstack_dashboard/api/nova.py
Akihiro Motoki 9c19b07a26 Define default settings explicitly (openstack_dashboard 1/5)
Currently horizon defines default values of settings in the logic
using getattr(settings, <setting name>, <default value>) and
it is not easy to handle the default values of available settings.

This commit starts the effort to define default settings explicitly.
This is a preparation for ini-based-configurations.

It covers settings in openstack_dashboard/api.

Part of blueprint ini-based-configuration
Change-Id: Id4c3287f0a572fd14ea93b54bcab8fabda39e583
2019-04-24 02:32:47 +09:00

1065 lines
35 KiB
Python

# Copyright 2012 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Copyright 2012 OpenStack Foundation
# Copyright 2012 Nebula, Inc.
# Copyright (c) 2012 X.commerce, a business unit of eBay 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.
from __future__ import absolute_import
import collections
import logging
from operator import attrgetter
from django.conf import settings
from django.utils.translation import ugettext_lazy as _
from novaclient import api_versions
from novaclient import exceptions as nova_exceptions
from novaclient.v2 import instance_action as nova_instance_action
from novaclient.v2 import list_extensions as nova_list_extensions
from novaclient.v2 import servers as nova_servers
from horizon import exceptions as horizon_exceptions
from horizon.utils import functions as utils
from horizon.utils import memoized
from openstack_dashboard.api import _nova
from openstack_dashboard.api import base
from openstack_dashboard.api import cinder
from openstack_dashboard.contrib.developer.profiler import api as profiler
LOG = logging.getLogger(__name__)
# API static values
INSTANCE_ACTIVE_STATE = 'ACTIVE'
VOLUME_STATE_AVAILABLE = "available"
DEFAULT_QUOTA_NAME = 'default'
get_microversion = _nova.get_microversion
server_get = _nova.server_get
Server = _nova.Server
def is_feature_available(request, features):
return bool(get_microversion(request, features))
class VolumeMultiattachNotSupported(horizon_exceptions.HorizonException):
status_code = 400
class VNCConsole(base.APIDictWrapper):
"""Wrapper for the "console" dictionary.
Returned by the novaclient.servers.get_vnc_console method.
"""
_attrs = ['url', 'type']
class SPICEConsole(base.APIDictWrapper):
"""Wrapper for the "console" dictionary.
Returned by the novaclient.servers.get_spice_console method.
"""
_attrs = ['url', 'type']
class RDPConsole(base.APIDictWrapper):
"""Wrapper for the "console" dictionary.
Returned by the novaclient.servers.get_rdp_console method.
"""
_attrs = ['url', 'type']
class SerialConsole(base.APIDictWrapper):
"""Wrapper for the "console" dictionary.
Returned by the novaclient.servers.get_serial_console method.
"""
_attrs = ['url', 'type']
class MKSConsole(base.APIDictWrapper):
"""Wrapper for the "console" dictionary.
Returned by the novaclient.servers.get_mks_console method.
"""
_attrs = ['url', 'type']
class Hypervisor(base.APIDictWrapper):
"""Simple wrapper around novaclient.hypervisors.Hypervisor."""
_attrs = ['manager', '_loaded', '_info', 'hypervisor_hostname', 'id',
'servers']
@property
def servers(self):
# if hypervisor doesn't have servers, the attribute is not present
servers = []
try:
servers = self._apidict.servers
except Exception:
pass
return servers
class NovaUsage(base.APIResourceWrapper):
"""Simple wrapper around contrib/simple_usage.py."""
_attrs = ['start', 'server_usages', 'stop', 'tenant_id',
'total_local_gb_usage', 'total_memory_mb_usage',
'total_vcpus_usage', 'total_hours']
def get_summary(self):
return {'instances': self.total_active_instances,
'memory_mb': self.memory_mb,
'vcpus': self.vcpus,
'vcpu_hours': self.vcpu_hours,
'local_gb': self.local_gb,
'disk_gb_hours': self.disk_gb_hours,
'memory_mb_hours': self.memory_mb_hours}
@property
def total_active_instances(self):
return sum(1 for s in self.server_usages if s['ended_at'] is None)
@property
def vcpus(self):
return sum(s['vcpus'] for s in self.server_usages
if s['ended_at'] is None)
@property
def vcpu_hours(self):
return getattr(self, "total_vcpus_usage", 0)
@property
def local_gb(self):
return sum(s['local_gb'] for s in self.server_usages
if s['ended_at'] is None)
@property
def memory_mb(self):
return sum(s['memory_mb'] for s in self.server_usages
if s['ended_at'] is None)
@property
def disk_gb_hours(self):
return getattr(self, "total_local_gb_usage", 0)
@property
def memory_mb_hours(self):
return getattr(self, "total_memory_mb_usage", 0)
class FlavorExtraSpec(object):
def __init__(self, flavor_id, key, val):
self.flavor_id = flavor_id
self.id = key
self.key = key
self.value = val
class QuotaSet(base.QuotaSet):
# We don't support nova-network, so we exclude nova-network relatd
# quota fields from the response.
ignore_quotas = {
"floating_ips",
"fixed_ips",
"security_groups",
"security_group_rules",
}
def upgrade_api(request, client, version):
"""Ugrade the nova API to the specified version if possible."""
min_ver, max_ver = api_versions._get_server_version_range(client)
if min_ver <= api_versions.APIVersion(version) <= max_ver:
client = _nova.novaclient(request, version)
return client
@profiler.trace
def server_vnc_console(request, instance_id, console_type='novnc'):
nc = _nova.novaclient(request)
console = nc.servers.get_vnc_console(instance_id, console_type)
return VNCConsole(console['console'])
@profiler.trace
def server_spice_console(request, instance_id, console_type='spice-html5'):
nc = _nova.novaclient(request)
console = nc.servers.get_spice_console(instance_id, console_type)
return SPICEConsole(console['console'])
@profiler.trace
def server_rdp_console(request, instance_id, console_type='rdp-html5'):
nc = _nova.novaclient(request)
console = nc.servers.get_rdp_console(instance_id, console_type)
return RDPConsole(console['console'])
@profiler.trace
def server_serial_console(request, instance_id, console_type='serial'):
nc = _nova.novaclient(request)
console = nc.servers.get_serial_console(instance_id, console_type)
return SerialConsole(console['console'])
@profiler.trace
def server_mks_console(request, instance_id, console_type='mks'):
microver = get_microversion(request, "remote_console_mks")
nc = _nova.novaclient(request, microver)
console = nc.servers.get_mks_console(instance_id, console_type)
return MKSConsole(console['remote_console'])
@profiler.trace
def flavor_create(request, name, memory, vcpu, disk, flavorid='auto',
ephemeral=0, swap=0, metadata=None, is_public=True,
rxtx_factor=1):
flavor = _nova.novaclient(request).flavors.create(name, memory, vcpu, disk,
flavorid=flavorid,
ephemeral=ephemeral,
swap=swap,
is_public=is_public,
rxtx_factor=rxtx_factor)
if (metadata):
flavor_extra_set(request, flavor.id, metadata)
return flavor
@profiler.trace
def flavor_delete(request, flavor_id):
_nova.novaclient(request).flavors.delete(flavor_id)
@profiler.trace
def flavor_get(request, flavor_id, get_extras=False):
flavor = _nova.novaclient(request).flavors.get(flavor_id)
if get_extras:
flavor.extras = flavor_get_extras(request, flavor.id, True, flavor)
return flavor
@profiler.trace
@memoized.memoized
def flavor_list(request, is_public=True, get_extras=False):
"""Get the list of available instance sizes (flavors)."""
flavors = _nova.novaclient(request).flavors.list(is_public=is_public)
if get_extras:
for flavor in flavors:
flavor.extras = flavor_get_extras(request, flavor.id, True, flavor)
return flavors
@profiler.trace
def update_pagination(entities, page_size, marker, reversed_order=False):
has_more_data = has_prev_data = False
if len(entities) > page_size:
has_more_data = True
entities.pop()
if marker is not None:
has_prev_data = True
# first page condition when reached via prev back
elif reversed_order and marker is not None:
has_more_data = True
# last page condition
elif marker is not None:
has_prev_data = True
# restore the original ordering here
if reversed_order:
entities.reverse()
return entities, has_more_data, has_prev_data
@profiler.trace
@memoized.memoized
def flavor_list_paged(request, is_public=True, get_extras=False, marker=None,
paginate=False, sort_key="name", sort_dir="desc",
reversed_order=False):
"""Get the list of available instance sizes (flavors)."""
has_more_data = False
has_prev_data = False
if paginate:
if reversed_order:
sort_dir = 'desc' if sort_dir == 'asc' else 'asc'
page_size = utils.get_page_size(request)
flavors = _nova.novaclient(request).flavors.list(is_public=is_public,
marker=marker,
limit=page_size + 1,
sort_key=sort_key,
sort_dir=sort_dir)
flavors, has_more_data, has_prev_data = update_pagination(
flavors, page_size, marker, reversed_order)
else:
flavors = _nova.novaclient(request).flavors.list(is_public=is_public)
if get_extras:
for flavor in flavors:
flavor.extras = flavor_get_extras(request, flavor.id, True, flavor)
return (flavors, has_more_data, has_prev_data)
@profiler.trace
@memoized.memoized
def flavor_access_list(request, flavor=None):
"""Get the list of access instance sizes (flavors)."""
return _nova.novaclient(request).flavor_access.list(flavor=flavor)
@profiler.trace
def add_tenant_to_flavor(request, flavor, tenant):
"""Add a tenant to the given flavor access list."""
return _nova.novaclient(request).flavor_access.add_tenant_access(
flavor=flavor, tenant=tenant)
@profiler.trace
def remove_tenant_from_flavor(request, flavor, tenant):
"""Remove a tenant from the given flavor access list."""
return _nova.novaclient(request).flavor_access.remove_tenant_access(
flavor=flavor, tenant=tenant)
@profiler.trace
def flavor_get_extras(request, flavor_id, raw=False, flavor=None):
"""Get flavor extra specs."""
if flavor is None:
flavor = _nova.novaclient(request).flavors.get(flavor_id)
extras = flavor.get_keys()
if raw:
return extras
return [FlavorExtraSpec(flavor_id, key, value) for
key, value in extras.items()]
@profiler.trace
def flavor_extra_delete(request, flavor_id, keys):
"""Unset the flavor extra spec keys."""
flavor = _nova.novaclient(request).flavors.get(flavor_id)
return flavor.unset_keys(keys)
@profiler.trace
def flavor_extra_set(request, flavor_id, metadata):
"""Set the flavor extra spec keys."""
flavor = _nova.novaclient(request).flavors.get(flavor_id)
if (not metadata): # not a way to delete keys
return None
return flavor.set_keys(metadata)
@profiler.trace
def snapshot_create(request, instance_id, name):
return _nova.novaclient(request).servers.create_image(instance_id, name)
@profiler.trace
def keypair_create(request, name, key_type='ssh'):
microversion = get_microversion(request, 'key_types')
return _nova.novaclient(request, microversion).\
keypairs.create(name, key_type=key_type)
@profiler.trace
def keypair_import(request, name, public_key, key_type='ssh'):
microversion = get_microversion(request, 'key_types')
return _nova.novaclient(request, microversion).\
keypairs.create(name, public_key, key_type)
@profiler.trace
def keypair_delete(request, name):
_nova.novaclient(request).keypairs.delete(name)
@profiler.trace
def keypair_list(request):
microversion = get_microversion(request, 'key_type_list')
return _nova.novaclient(request, microversion).keypairs.list()
@profiler.trace
def keypair_get(request, name):
return _nova.novaclient(request).keypairs.get(name)
@profiler.trace
def server_create(request, name, image, flavor, key_name, user_data,
security_groups, block_device_mapping=None,
block_device_mapping_v2=None, nics=None,
availability_zone=None, instance_count=1, admin_pass=None,
disk_config=None, config_drive=None, meta=None,
scheduler_hints=None, description=None):
microversion = get_microversion(request, ("instance_description",
"auto_allocated_network"))
nova_client = _nova.novaclient(request, version=microversion)
# NOTE(amotoki): Handling auto allocated network
# Nova API 2.37 or later, it accepts a special string 'auto' for nics
# which means nova uses a network that is available for a current project
# if one exists and otherwise it creates a network automatically.
# This special handling is processed here as JS side assumes 'nics'
# is a list and it is easiest to handle it here.
if nics:
is_auto_allocate = any(nic.get('net-id') == '__auto_allocate__'
for nic in nics)
if is_auto_allocate:
nics = 'auto'
kwargs = {}
if description is not None:
kwargs['description'] = description
return Server(nova_client.servers.create(
name.strip(), image, flavor, userdata=user_data,
security_groups=security_groups,
key_name=key_name, block_device_mapping=block_device_mapping,
block_device_mapping_v2=block_device_mapping_v2,
nics=nics, availability_zone=availability_zone,
min_count=instance_count, admin_pass=admin_pass,
disk_config=disk_config, config_drive=config_drive,
meta=meta, scheduler_hints=scheduler_hints, **kwargs), request)
@profiler.trace
def server_delete(request, instance_id):
_nova.novaclient(request).servers.delete(instance_id)
# Session is available and consistent for the current view
# among Horizon django servers even in load-balancing setup,
# so only the view listing the servers will recognize it as
# own DeleteInstance action performed. Note that dict is passed
# by reference in python. Quote from django's developer manual:
# " You can read it and write to request.session at any point
# in your view. You can edit it multiple times."
request.session['server_deleted'] = instance_id
def get_novaclient_with_locked_status(request):
microversion = get_microversion(request, "locked_attribute")
return _nova.novaclient(request, version=microversion)
@profiler.trace
def server_list_paged(request,
search_opts=None,
detailed=True,
sort_dir="desc"):
has_more_data = False
has_prev_data = False
nova_client = get_novaclient_with_locked_status(request)
page_size = utils.get_page_size(request)
search_opts = {} if search_opts is None else search_opts
marker = search_opts.get('marker', None)
if not search_opts.get('all_tenants', False):
search_opts['project_id'] = request.user.tenant_id
if search_opts.pop('paginate', False):
reversed_order = sort_dir == "asc"
LOG.debug("Notify received on deleted server: %r",
('server_deleted' in request.session))
deleted = request.session.pop('server_deleted',
None)
view_marker = 'possibly_deleted' if deleted and marker else 'ok'
search_opts['marker'] = deleted if deleted else marker
search_opts['limit'] = page_size + 1
search_opts['sort_dir'] = sort_dir
servers = [Server(s, request)
for s in nova_client.servers.list(detailed, search_opts)]
if view_marker == 'possibly_deleted':
if not servers:
view_marker = 'head_deleted'
search_opts['sort_dir'] = 'desc'
reversed_order = False
servers = [Server(s, request)
for s in nova_client.servers.list(detailed,
search_opts)]
if not servers:
view_marker = 'tail_deleted'
search_opts['sort_dir'] = 'asc'
reversed_order = True
servers = [Server(s, request)
for s in nova_client.servers.list(detailed,
search_opts)]
(servers, has_more_data, has_prev_data) = update_pagination(
servers, page_size, marker, reversed_order)
has_prev_data = (False
if view_marker == 'head_deleted'
else has_prev_data)
has_more_data = (False
if view_marker == 'tail_deleted'
else has_more_data)
else:
servers = [Server(s, request)
for s in nova_client.servers.list(detailed, search_opts)]
return (servers, has_more_data, has_prev_data)
@profiler.trace
def server_list(request, search_opts=None, detailed=True):
(servers, has_more_data, _) = server_list_paged(request,
search_opts,
detailed)
return (servers, has_more_data)
@profiler.trace
def server_console_output(request, instance_id, tail_length=None):
"""Gets console output of an instance."""
nc = _nova.novaclient(request)
return nc.servers.get_console_output(instance_id, length=tail_length)
@profiler.trace
def server_pause(request, instance_id):
_nova.novaclient(request).servers.pause(instance_id)
@profiler.trace
def server_unpause(request, instance_id):
_nova.novaclient(request).servers.unpause(instance_id)
@profiler.trace
def server_suspend(request, instance_id):
_nova.novaclient(request).servers.suspend(instance_id)
@profiler.trace
def server_resume(request, instance_id):
_nova.novaclient(request).servers.resume(instance_id)
@profiler.trace
def server_shelve(request, instance_id):
_nova.novaclient(request).servers.shelve(instance_id)
@profiler.trace
def server_unshelve(request, instance_id):
_nova.novaclient(request).servers.unshelve(instance_id)
@profiler.trace
def server_reboot(request, instance_id, soft_reboot=False):
hardness = nova_servers.REBOOT_HARD
if soft_reboot:
hardness = nova_servers.REBOOT_SOFT
_nova.novaclient(request).servers.reboot(instance_id, hardness)
@profiler.trace
def server_rebuild(request, instance_id, image_id, password=None,
disk_config=None, description=None):
kwargs = {}
if description:
kwargs['description'] = description
nc = _nova.get_novaclient_with_instance_desc(request)
return nc.servers.rebuild(instance_id, image_id, password, disk_config,
**kwargs)
@profiler.trace
def server_update(request, instance_id, name, description=None):
nc = _nova.get_novaclient_with_instance_desc(request)
return nc.servers.update(instance_id, name=name.strip(),
description=description)
@profiler.trace
def server_migrate(request, instance_id):
_nova.novaclient(request).servers.migrate(instance_id)
@profiler.trace
def server_live_migrate(request, instance_id, host, block_migration=False,
disk_over_commit=False):
_nova.novaclient(request).servers.live_migrate(instance_id, host,
block_migration,
disk_over_commit)
@profiler.trace
def server_resize(request, instance_id, flavor, disk_config=None, **kwargs):
_nova.novaclient(request).servers.resize(instance_id, flavor,
disk_config, **kwargs)
@profiler.trace
def server_confirm_resize(request, instance_id):
_nova.novaclient(request).servers.confirm_resize(instance_id)
@profiler.trace
def server_revert_resize(request, instance_id):
_nova.novaclient(request).servers.revert_resize(instance_id)
@profiler.trace
def server_start(request, instance_id):
_nova.novaclient(request).servers.start(instance_id)
@profiler.trace
def server_stop(request, instance_id):
_nova.novaclient(request).servers.stop(instance_id)
@profiler.trace
def server_lock(request, instance_id):
microversion = get_microversion(request, "locked_attribute")
_nova.novaclient(request, version=microversion).servers.lock(instance_id)
@profiler.trace
def server_unlock(request, instance_id):
microversion = get_microversion(request, "locked_attribute")
_nova.novaclient(request, version=microversion).servers.unlock(instance_id)
@profiler.trace
def server_metadata_update(request, instance_id, metadata):
_nova.novaclient(request).servers.set_meta(instance_id, metadata)
@profiler.trace
def server_metadata_delete(request, instance_id, keys):
_nova.novaclient(request).servers.delete_meta(instance_id, keys)
@profiler.trace
def server_rescue(request, instance_id, password=None, image=None):
_nova.novaclient(request).servers.rescue(instance_id,
password=password,
image=image)
@profiler.trace
def server_unrescue(request, instance_id):
_nova.novaclient(request).servers.unrescue(instance_id)
@profiler.trace
def tenant_quota_get(request, tenant_id):
return QuotaSet(_nova.novaclient(request).quotas.get(tenant_id))
@profiler.trace
def tenant_quota_update(request, tenant_id, **kwargs):
if kwargs:
_nova.novaclient(request).quotas.update(tenant_id, **kwargs)
@profiler.trace
def default_quota_get(request, tenant_id):
return QuotaSet(_nova.novaclient(request).quotas.defaults(tenant_id))
@profiler.trace
def default_quota_update(request, **kwargs):
_nova.novaclient(request).quota_classes.update(DEFAULT_QUOTA_NAME,
**kwargs)
def _get_usage_marker(usage):
marker = None
if hasattr(usage, 'server_usages') and usage.server_usages:
marker = usage.server_usages[-1].get('instance_id')
return marker
def _get_usage_list_marker(usage_list):
marker = None
if usage_list:
marker = _get_usage_marker(usage_list[-1])
return marker
def _merge_usage(usage, next_usage):
usage.server_usages.extend(next_usage.server_usages)
usage.total_hours += next_usage.total_hours
usage.total_memory_mb_usage += next_usage.total_memory_mb_usage
usage.total_vcpus_usage += next_usage.total_vcpus_usage
usage.total_local_gb_usage += next_usage.total_local_gb_usage
def _merge_usage_list(usages, next_usage_list):
for next_usage in next_usage_list:
if next_usage.tenant_id in usages:
_merge_usage(usages[next_usage.tenant_id], next_usage)
else:
usages[next_usage.tenant_id] = next_usage
@profiler.trace
def usage_get(request, tenant_id, start, end):
client = upgrade_api(request, _nova.novaclient(request), '2.40')
usage = client.usage.get(tenant_id, start, end)
if client.api_version >= api_versions.APIVersion('2.40'):
# If the number of instances used to calculate the usage is greater
# than max_limit, the usage will be split across multiple requests
# and the responses will need to be merged back together.
marker = _get_usage_marker(usage)
while marker:
next_usage = client.usage.get(tenant_id, start, end, marker=marker)
marker = _get_usage_marker(next_usage)
if marker:
_merge_usage(usage, next_usage)
return NovaUsage(usage)
@profiler.trace
def usage_list(request, start, end):
client = upgrade_api(request, _nova.novaclient(request), '2.40')
usage_list = client.usage.list(start, end, True)
if client.api_version >= api_versions.APIVersion('2.40'):
# If the number of instances used to calculate the usage is greater
# than max_limit, the usage will be split across multiple requests
# and the responses will need to be merged back together.
usages = collections.OrderedDict()
_merge_usage_list(usages, usage_list)
marker = _get_usage_list_marker(usage_list)
while marker:
next_usage_list = client.usage.list(start, end, True,
marker=marker)
marker = _get_usage_list_marker(next_usage_list)
if marker:
_merge_usage_list(usages, next_usage_list)
usage_list = usages.values()
return [NovaUsage(u) for u in usage_list]
@profiler.trace
def get_password(request, instance_id, private_key=None):
return _nova.novaclient(request).servers.get_password(instance_id,
private_key)
@profiler.trace
def instance_volume_attach(request, volume_id, instance_id, device):
# If we have a multiattach volume, we need to use microversion>=2.60.
volume = cinder.volume_get(request, volume_id)
if volume.multiattach:
version = get_microversion(request, 'multiattach')
if version:
client = _nova.novaclient(request, version)
else:
raise VolumeMultiattachNotSupported(
_('Multiattach volumes are not yet supported.'))
else:
client = _nova.novaclient(request)
return client.volumes.create_server_volume(
instance_id, volume_id, device)
@profiler.trace
def instance_volume_detach(request, instance_id, att_id):
return _nova.novaclient(request).volumes.delete_server_volume(instance_id,
att_id)
@profiler.trace
def instance_volumes_list(request, instance_id):
volumes = _nova.novaclient(request).volumes.get_server_volumes(instance_id)
for volume in volumes:
volume_data = cinder.cinderclient(request).volumes.get(volume.id)
volume.name = cinder.Volume(volume_data).name
return volumes
@profiler.trace
def hypervisor_list(request):
return _nova.novaclient(request).hypervisors.list()
@profiler.trace
def hypervisor_stats(request):
return _nova.novaclient(request).hypervisors.statistics()
@profiler.trace
def hypervisor_search(request, query, servers=True):
return _nova.novaclient(request).hypervisors.search(query, servers)
@profiler.trace
def evacuate_host(request, host, target=None, on_shared_storage=False):
# TODO(jmolle) This should be change for nova atomic api host_evacuate
hypervisors = _nova.novaclient(request).hypervisors.search(host, True)
response = []
err_code = None
for hypervisor in hypervisors:
hyper = Hypervisor(hypervisor)
# if hypervisor doesn't have servers, the attribute is not present
for server in hyper.servers:
try:
_nova.novaclient(request).servers.evacuate(server['uuid'],
target,
on_shared_storage)
except nova_exceptions.ClientException as err:
err_code = err.code
msg = _("Name: %(name)s ID: %(uuid)s")
msg = msg % {'name': server['name'], 'uuid': server['uuid']}
response.append(msg)
if err_code:
msg = _('Failed to evacuate instances: %s') % ', '.join(response)
raise nova_exceptions.ClientException(err_code, msg)
return True
@profiler.trace
def migrate_host(request, host, live_migrate=False, disk_over_commit=False,
block_migration=False):
nc = _nova.novaclient(request)
hypervisors = nc.hypervisors.search(host, True)
response = []
err_code = None
for hyper in hypervisors:
for server in getattr(hyper, "servers", []):
try:
if live_migrate:
instance = server_get(request, server['uuid'])
# Checking that instance can be live-migrated
if instance.status in ["ACTIVE", "PAUSED"]:
nc.servers.live_migrate(
server['uuid'],
None,
block_migration,
disk_over_commit
)
else:
nc.servers.migrate(server['uuid'])
else:
nc.servers.migrate(server['uuid'])
except nova_exceptions.ClientException as err:
err_code = err.code
msg = _("Name: %(name)s ID: %(uuid)s")
msg = msg % {'name': server['name'], 'uuid': server['uuid']}
response.append(msg)
if err_code:
msg = _('Failed to migrate instances: %s') % ', '.join(response)
raise nova_exceptions.ClientException(err_code, msg)
return True
@profiler.trace
def tenant_absolute_limits(request, reserved=False, tenant_id=None):
# Nova does not allow to specify tenant_id for non-admin users
# even if tenant_id matches a tenant_id of the user.
if tenant_id == request.user.tenant_id:
tenant_id = None
limits = _nova.novaclient(request).limits.get(reserved=reserved,
tenant_id=tenant_id).absolute
limits_dict = {}
for limit in limits:
if limit.value < 0:
# Workaround for nova bug 1370867 that absolute_limits
# returns negative value for total.*Used instead of 0.
# For such case, replace negative values with 0.
if limit.name.startswith('total') and limit.name.endswith('Used'):
limits_dict[limit.name] = 0
else:
# -1 is used to represent unlimited quotas
limits_dict[limit.name] = float("inf")
else:
limits_dict[limit.name] = limit.value
return limits_dict
@profiler.trace
def availability_zone_list(request, detailed=False):
nc = _nova.novaclient(request)
zones = nc.availability_zones.list(detailed=detailed)
zones.sort(key=attrgetter('zoneName'))
return zones
@profiler.trace
def server_group_list(request):
return _nova.novaclient(request).server_groups.list()
@profiler.trace
def server_group_create(request, **kwargs):
microversion = get_microversion(request, "servergroup_soft_policies")
nc = _nova.novaclient(request, version=microversion)
return nc.server_groups.create(**kwargs)
@profiler.trace
def server_group_delete(request, servergroup_id):
_nova.novaclient(request).server_groups.delete(servergroup_id)
@profiler.trace
def server_group_get(request, servergroup_id):
microversion = get_microversion(request, "servergroup_user_info")
return _nova.novaclient(request, version=microversion).server_groups.get(
servergroup_id)
@profiler.trace
def service_list(request, binary=None):
return _nova.novaclient(request).services.list(binary=binary)
@profiler.trace
def service_enable(request, host, binary):
return _nova.novaclient(request).services.enable(host, binary)
@profiler.trace
def service_disable(request, host, binary, reason=None):
if reason:
return _nova.novaclient(request).services.disable_log_reason(
host, binary, reason)
else:
return _nova.novaclient(request).services.disable(host, binary)
@profiler.trace
def aggregate_details_list(request):
result = []
c = _nova.novaclient(request)
for aggregate in c.aggregates.list():
result.append(c.aggregates.get_details(aggregate.id))
return result
@profiler.trace
def aggregate_create(request, name, availability_zone=None):
return _nova.novaclient(request).aggregates.create(name, availability_zone)
@profiler.trace
def aggregate_delete(request, aggregate_id):
return _nova.novaclient(request).aggregates.delete(aggregate_id)
@profiler.trace
def aggregate_get(request, aggregate_id):
return _nova.novaclient(request).aggregates.get(aggregate_id)
@profiler.trace
def aggregate_update(request, aggregate_id, values):
_nova.novaclient(request).aggregates.update(aggregate_id, values)
@profiler.trace
def aggregate_set_metadata(request, aggregate_id, metadata):
return _nova.novaclient(request).aggregates.set_metadata(aggregate_id,
metadata)
@profiler.trace
def add_host_to_aggregate(request, aggregate_id, host):
_nova.novaclient(request).aggregates.add_host(aggregate_id, host)
@profiler.trace
def remove_host_from_aggregate(request, aggregate_id, host):
_nova.novaclient(request).aggregates.remove_host(aggregate_id, host)
@profiler.trace
def interface_attach(request,
server, port_id=None, net_id=None, fixed_ip=None):
return _nova.novaclient(request).servers.interface_attach(
server, port_id, net_id, fixed_ip)
@profiler.trace
def interface_detach(request, server, port_id):
return _nova.novaclient(request).servers.interface_detach(server, port_id)
@profiler.trace
@memoized.memoized
def list_extensions(request):
"""List all nova extensions, except the ones in the blacklist."""
blacklist = set(settings.OPENSTACK_NOVA_EXTENSIONS_BLACKLIST)
nova_api = _nova.novaclient(request)
return tuple(
extension for extension in
nova_list_extensions.ListExtManager(nova_api).show_all()
if extension.name not in blacklist
)
@profiler.trace
@memoized.memoized
def extension_supported(extension_name, request):
"""Determine if nova supports a given extension name.
Example values for the extension_name include AdminActions, ConsoleOutput,
etc.
"""
for ext in list_extensions(request):
if ext.name == extension_name:
return True
return False
@profiler.trace
def can_set_server_password():
features = settings.OPENSTACK_HYPERVISOR_FEATURES
return features['can_set_password']
@profiler.trace
def instance_action_list(request, instance_id):
return nova_instance_action.InstanceActionManager(
_nova.novaclient(request)).list(instance_id)
@profiler.trace
def can_set_mount_point():
"""Return the Hypervisor's capability of setting mount points."""
hypervisor_features = settings.OPENSTACK_HYPERVISOR_FEATURES
return hypervisor_features["can_set_mount_point"]
@profiler.trace
def requires_keypair():
features = settings.OPENSTACK_HYPERVISOR_FEATURES
return features['requires_keypair']
def can_set_quotas():
features = settings.OPENSTACK_HYPERVISOR_FEATURES
return features['enable_quotas']