horizon/openstack_dashboard/api/nova.py
Justin Pomeroy 79971c627b Add action for editing instance metadata
This adds the Update Metadata action to the instances table to allow
managing the metadata on an instance. This is very similar to the
Update Metadata actions for images, flavors, etc.

Implements: blueprint edit-server-metadata
Change-Id: Ia09a05f5cd93898ec9d64ac7af1e6baf07e71757
2016-01-04 08:46:28 -06:00

1006 lines
34 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 logging
from django.conf import settings
from django.utils.functional import cached_property # noqa
from django.utils.translation import ugettext_lazy as _
import six
from novaclient import client as nova_client
from novaclient import exceptions as nova_exceptions
from novaclient.v2.contrib import instance_action as nova_instance_action
from novaclient.v2.contrib import list_extensions as nova_list_extensions
from novaclient.v2 import security_group_rules as nova_rules
from novaclient.v2 import security_groups as nova_security_groups
from novaclient.v2 import servers as nova_servers
from horizon import conf
from horizon.utils import functions as utils
from horizon.utils.memoized import memoized # noqa
from openstack_dashboard.api import base
from openstack_dashboard.api import network_base
LOG = logging.getLogger(__name__)
# Supported compute versions
VERSIONS = base.APIVersionManager("compute", preferred_version=2)
VERSIONS.load_supported_version(1.1, {"client": nova_client, "version": 1.1})
VERSIONS.load_supported_version(2, {"client": nova_client, "version": 2})
# API static values
INSTANCE_ACTIVE_STATE = 'ACTIVE'
VOLUME_STATE_AVAILABLE = "available"
DEFAULT_QUOTA_NAME = 'default'
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 Server(base.APIResourceWrapper):
"""Simple wrapper around novaclient.server.Server.
Preserves the request info so image name can later be retrieved.
"""
_attrs = ['addresses', 'attrs', 'id', 'image', 'links',
'metadata', 'name', 'private_ip', 'public_ip', 'status', 'uuid',
'image_name', 'VirtualInterfaces', 'flavor', 'key_name', 'fault',
'tenant_id', 'user_id', 'created', 'OS-EXT-STS:power_state',
'OS-EXT-STS:task_state', 'OS-EXT-SRV-ATTR:instance_name',
'OS-EXT-SRV-ATTR:host', 'OS-EXT-AZ:availability_zone',
'OS-DCF:diskConfig']
def __init__(self, apiresource, request):
super(Server, self).__init__(apiresource)
self.request = request
# TODO(gabriel): deprecate making a call to Glance as a fallback.
@property
def image_name(self):
import glanceclient.exc as glance_exceptions # noqa
from openstack_dashboard.api import glance # noqa
if not self.image:
return _("-")
if hasattr(self.image, 'name'):
return self.image.name
if 'name' in self.image:
return self.image['name']
else:
try:
image = glance.image_get(self.request, self.image['id'])
return image.name
except glance_exceptions.ClientException:
return _("-")
@property
def internal_name(self):
return getattr(self, 'OS-EXT-SRV-ATTR:instance_name', "")
@property
def availability_zone(self):
return getattr(self, 'OS-EXT-AZ:availability_zone', "")
@property
def host_server(self):
return getattr(self, 'OS-EXT-SRV-ATTR:host', '')
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 SecurityGroup(base.APIResourceWrapper):
"""Wrapper around novaclient.security_groups.SecurityGroup.
Wraps its rules in SecurityGroupRule objects and allows access to them.
"""
_attrs = ['id', 'name', 'description', 'tenant_id']
@cached_property
def rules(self):
"""Wraps transmitted rule info in the novaclient rule class."""
manager = nova_rules.SecurityGroupRuleManager(None)
rule_objs = [nova_rules.SecurityGroupRule(manager, rule)
for rule in self._apiresource.rules]
return [SecurityGroupRule(rule) for rule in rule_objs]
def to_dict(self):
return self._apiresource.to_dict()
@six.python_2_unicode_compatible
class SecurityGroupRule(base.APIResourceWrapper):
"""Wrapper for individual rules in a SecurityGroup."""
_attrs = ['id', 'ip_protocol', 'from_port', 'to_port', 'ip_range', 'group']
def __str__(self):
if 'name' in self.group:
vals = {'from': self.from_port,
'to': self.to_port,
'ip_protocol': self.ip_protocol,
'group': self.group['name']}
return (_('ALLOW %(from)s:%(to)s/%(ip_protocol)s from %(group)s') %
vals)
else:
vals = {'from': self.from_port,
'to': self.to_port,
'ip_protocol': self.ip_protocol,
'cidr': self.ip_range['cidr']}
return (_('ALLOW %(from)s:%(to)s/%(ip_protocol)s from %(cidr)s') %
vals)
# The following attributes are defined to keep compatibility with Neutron
@property
def ethertype(self):
return None
@property
def direction(self):
return 'ingress'
class SecurityGroupManager(network_base.SecurityGroupManager):
backend = 'nova'
def __init__(self, request):
self.request = request
self.client = novaclient(request)
def list(self):
return [SecurityGroup(g) for g
in self.client.security_groups.list()]
def get(self, sg_id):
return SecurityGroup(self.client.security_groups.get(sg_id))
def create(self, name, desc):
return SecurityGroup(self.client.security_groups.create(name, desc))
def update(self, sg_id, name, desc):
return SecurityGroup(self.client.security_groups.update(sg_id,
name, desc))
def delete(self, security_group_id):
self.client.security_groups.delete(security_group_id)
def rule_create(self, parent_group_id,
direction=None, ethertype=None,
ip_protocol=None, from_port=None, to_port=None,
cidr=None, group_id=None):
# Nova Security Group API does not use direction and ethertype fields.
sg = self.client.security_group_rules.create(parent_group_id,
ip_protocol,
from_port,
to_port,
cidr,
group_id)
return SecurityGroupRule(sg)
def rule_delete(self, security_group_rule_id):
self.client.security_group_rules.delete(security_group_rule_id)
def list_by_instance(self, instance_id):
"""Gets security groups of an instance."""
# TODO(gabriel): This needs to be moved up to novaclient, and should
# be removed once novaclient supports this call.
security_groups = []
nclient = self.client
resp, body = nclient.client.get('/servers/%s/os-security-groups'
% instance_id)
if body:
# Wrap data in SG objects as novaclient would.
sg_objs = [
nova_security_groups.SecurityGroup(
nclient.security_groups, sg, loaded=True)
for sg in body.get('security_groups', [])]
# Then wrap novaclient's object with our own. Yes, sadly wrapping
# with two layers of objects is necessary.
security_groups = [SecurityGroup(sg) for sg in sg_objs]
return security_groups
def update_instance_security_group(self, instance_id,
new_security_group_ids):
try:
all_groups = self.list()
except Exception:
raise Exception(_("Couldn't get security group list."))
wanted_groups = set([sg.name for sg in all_groups
if sg.id in new_security_group_ids])
try:
current_groups = self.list_by_instance(instance_id)
except Exception:
raise Exception(_("Couldn't get current security group "
"list for instance %s.")
% instance_id)
current_group_names = set([sg.name for sg in current_groups])
groups_to_add = wanted_groups - current_group_names
groups_to_remove = current_group_names - wanted_groups
num_groups_to_modify = len(groups_to_add | groups_to_remove)
try:
for group in groups_to_add:
self.client.servers.add_security_group(instance_id, group)
num_groups_to_modify -= 1
for group in groups_to_remove:
self.client.servers.remove_security_group(instance_id, group)
num_groups_to_modify -= 1
except nova_exceptions.ClientException as err:
LOG.error(_("Failed to modify %(num_groups_to_modify)d instance "
"security groups: %(err)s") %
dict(num_groups_to_modify=num_groups_to_modify,
err=err))
# reraise novaclient.exceptions.ClientException, but with
# a sanitized error message so we don't risk exposing
# sensitive information to the end user. This has to be
# novaclient.exceptions.ClientException, not just
# Exception, since the former is recognized as a
# "recoverable" exception by horizon, and therefore the
# error message is passed along to the end user, while
# Exception is swallowed alive by horizon and a generic
# error message is given to the end user
raise nova_exceptions.ClientException(
err.code,
_("Failed to modify %d instance security groups") %
num_groups_to_modify)
return True
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 FloatingIp(base.APIResourceWrapper):
_attrs = ['id', 'ip', 'fixed_ip', 'port_id', 'instance_id',
'instance_type', 'pool']
def __init__(self, fip):
fip.__setattr__('port_id', fip.instance_id)
fip.__setattr__('instance_type',
'compute' if fip.instance_id else None)
super(FloatingIp, self).__init__(fip)
class FloatingIpPool(base.APIDictWrapper):
def __init__(self, pool):
pool_dict = {'id': pool.name,
'name': pool.name}
super(FloatingIpPool, self).__init__(pool_dict)
class FloatingIpTarget(base.APIDictWrapper):
def __init__(self, server):
server_dict = {'name': '%s (%s)' % (server.name, server.id),
'id': server.id}
super(FloatingIpTarget, self).__init__(server_dict)
class FloatingIpManager(network_base.FloatingIpManager):
def __init__(self, request):
self.request = request
self.client = novaclient(request)
def list_pools(self):
return [FloatingIpPool(pool)
for pool in self.client.floating_ip_pools.list()]
def list(self):
return [FloatingIp(fip)
for fip in self.client.floating_ips.list()]
def get(self, floating_ip_id):
return FloatingIp(self.client.floating_ips.get(floating_ip_id))
def allocate(self, pool):
return FloatingIp(self.client.floating_ips.create(pool=pool))
def release(self, floating_ip_id):
self.client.floating_ips.delete(floating_ip_id)
def associate(self, floating_ip_id, port_id):
# In Nova implied port_id is instance_id
server = self.client.servers.get(port_id)
fip = self.client.floating_ips.get(floating_ip_id)
self.client.servers.add_floating_ip(server.id, fip.ip)
def disassociate(self, floating_ip_id):
fip = self.client.floating_ips.get(floating_ip_id)
server = self.client.servers.get(fip.instance_id)
self.client.servers.remove_floating_ip(server.id, fip.ip)
def list_targets(self):
return [FloatingIpTarget(s) for s in self.client.servers.list()]
def get_target_id_by_instance(self, instance_id, target_list=None):
return instance_id
def list_target_id_by_instance(self, instance_id, target_list=None):
return [instance_id, ]
def is_simple_associate_supported(self):
return conf.HORIZON_CONFIG["simple_ip_management"]
def is_supported(self):
return True
@memoized
def novaclient(request):
insecure = getattr(settings, 'OPENSTACK_SSL_NO_VERIFY', False)
cacert = getattr(settings, 'OPENSTACK_SSL_CACERT', None)
c = nova_client.Client(VERSIONS.get_active_version()['version'],
request.user.username,
request.user.token.id,
project_id=request.user.tenant_id,
auth_url=base.url_for(request, 'compute'),
insecure=insecure,
cacert=cacert,
http_log_debug=settings.DEBUG)
c.client.auth_token = request.user.token.id
c.client.management_url = base.url_for(request, 'compute')
return c
def server_vnc_console(request, instance_id, console_type='novnc'):
return VNCConsole(novaclient(request).servers.get_vnc_console(
instance_id, console_type)['console'])
def server_spice_console(request, instance_id, console_type='spice-html5'):
return SPICEConsole(novaclient(request).servers.get_spice_console(
instance_id, console_type)['console'])
def server_rdp_console(request, instance_id, console_type='rdp-html5'):
return RDPConsole(novaclient(request).servers.get_rdp_console(
instance_id, console_type)['console'])
def server_serial_console(request, instance_id, console_type='serial'):
return SerialConsole(novaclient(request).servers.get_serial_console(
instance_id, console_type)['console'])
def flavor_create(request, name, memory, vcpu, disk, flavorid='auto',
ephemeral=0, swap=0, metadata=None, is_public=True):
flavor = novaclient(request).flavors.create(name, memory, vcpu, disk,
flavorid=flavorid,
ephemeral=ephemeral,
swap=swap, is_public=is_public)
if (metadata):
flavor_extra_set(request, flavor.id, metadata)
return flavor
def flavor_delete(request, flavor_id):
novaclient(request).flavors.delete(flavor_id)
def flavor_get(request, flavor_id, get_extras=False):
flavor = novaclient(request).flavors.get(flavor_id)
if get_extras:
flavor.extras = flavor_get_extras(request, flavor.id, True, flavor)
return flavor
@memoized
def flavor_list(request, is_public=True, get_extras=False):
"""Get the list of available instance sizes (flavors)."""
flavors = 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
@memoized
def flavor_access_list(request, flavor=None):
"""Get the list of access instance sizes (flavors)."""
return novaclient(request).flavor_access.list(flavor=flavor)
def add_tenant_to_flavor(request, flavor, tenant):
"""Add a tenant to the given flavor access list."""
return novaclient(request).flavor_access.add_tenant_access(
flavor=flavor, tenant=tenant)
def remove_tenant_from_flavor(request, flavor, tenant):
"""Remove a tenant from the given flavor access list."""
return novaclient(request).flavor_access.remove_tenant_access(
flavor=flavor, tenant=tenant)
def flavor_get_extras(request, flavor_id, raw=False, flavor=None):
"""Get flavor extra specs."""
if flavor is None:
flavor = 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()]
def flavor_extra_delete(request, flavor_id, keys):
"""Unset the flavor extra spec keys."""
flavor = novaclient(request).flavors.get(flavor_id)
return flavor.unset_keys(keys)
def flavor_extra_set(request, flavor_id, metadata):
"""Set the flavor extra spec keys."""
flavor = novaclient(request).flavors.get(flavor_id)
if (not metadata): # not a way to delete keys
return None
return flavor.set_keys(metadata)
def snapshot_create(request, instance_id, name):
return novaclient(request).servers.create_image(instance_id, name)
def keypair_create(request, name):
return novaclient(request).keypairs.create(name)
def keypair_import(request, name, public_key):
return novaclient(request).keypairs.create(name, public_key)
def keypair_delete(request, keypair_id):
novaclient(request).keypairs.delete(keypair_id)
def keypair_list(request):
return novaclient(request).keypairs.list()
def keypair_get(request, keypair_id):
return novaclient(request).keypairs.get(keypair_id)
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):
return Server(novaclient(request).servers.create(
name, 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), request)
def server_delete(request, instance):
novaclient(request).servers.delete(instance)
def server_get(request, instance_id):
return Server(novaclient(request).servers.get(instance_id), request)
def server_list(request, search_opts=None, all_tenants=False):
page_size = utils.get_page_size(request)
c = novaclient(request)
paginate = False
if search_opts is None:
search_opts = {}
elif 'paginate' in search_opts:
paginate = search_opts.pop('paginate')
if paginate:
search_opts['limit'] = page_size + 1
if all_tenants:
search_opts['all_tenants'] = True
else:
search_opts['project_id'] = request.user.tenant_id
servers = [Server(s, request)
for s in c.servers.list(True, search_opts)]
has_more_data = False
if paginate and len(servers) > page_size:
servers.pop(-1)
has_more_data = True
elif paginate and len(servers) == getattr(settings, 'API_RESULT_LIMIT',
1000):
has_more_data = True
return (servers, has_more_data)
def server_console_output(request, instance_id, tail_length=None):
"""Gets console output of an instance."""
return novaclient(request).servers.get_console_output(instance_id,
length=tail_length)
def server_pause(request, instance_id):
novaclient(request).servers.pause(instance_id)
def server_unpause(request, instance_id):
novaclient(request).servers.unpause(instance_id)
def server_suspend(request, instance_id):
novaclient(request).servers.suspend(instance_id)
def server_resume(request, instance_id):
novaclient(request).servers.resume(instance_id)
def server_shelve(request, instance_id):
novaclient(request).servers.shelve(instance_id)
def server_unshelve(request, instance_id):
novaclient(request).servers.unshelve(instance_id)
def server_reboot(request, instance_id, soft_reboot=False):
hardness = nova_servers.REBOOT_HARD
if soft_reboot:
hardness = nova_servers.REBOOT_SOFT
novaclient(request).servers.reboot(instance_id, hardness)
def server_rebuild(request, instance_id, image_id, password=None,
disk_config=None):
return novaclient(request).servers.rebuild(instance_id, image_id,
password, disk_config)
def server_update(request, instance_id, name):
return novaclient(request).servers.update(instance_id, name=name)
def server_migrate(request, instance_id):
novaclient(request).servers.migrate(instance_id)
def server_live_migrate(request, instance_id, host, block_migration=False,
disk_over_commit=False):
novaclient(request).servers.live_migrate(instance_id, host,
block_migration,
disk_over_commit)
def server_resize(request, instance_id, flavor, disk_config=None, **kwargs):
novaclient(request).servers.resize(instance_id, flavor,
disk_config, **kwargs)
def server_confirm_resize(request, instance_id):
novaclient(request).servers.confirm_resize(instance_id)
def server_revert_resize(request, instance_id):
novaclient(request).servers.revert_resize(instance_id)
def server_start(request, instance_id):
novaclient(request).servers.start(instance_id)
def server_stop(request, instance_id):
novaclient(request).servers.stop(instance_id)
def server_lock(request, instance_id):
novaclient(request).servers.lock(instance_id)
def server_unlock(request, instance_id):
novaclient(request).servers.unlock(instance_id)
def server_metadata_update(request, instance_id, metadata):
novaclient(request).servers.set_meta(instance_id, metadata)
def server_metadata_delete(request, instance_id, keys):
novaclient(request).servers.delete_meta(instance_id, keys)
def tenant_quota_get(request, tenant_id):
return base.QuotaSet(novaclient(request).quotas.get(tenant_id))
def tenant_quota_update(request, tenant_id, **kwargs):
novaclient(request).quotas.update(tenant_id, **kwargs)
def default_quota_get(request, tenant_id):
return base.QuotaSet(novaclient(request).quotas.defaults(tenant_id))
def default_quota_update(request, **kwargs):
novaclient(request).quota_classes.update(DEFAULT_QUOTA_NAME, **kwargs)
def usage_get(request, tenant_id, start, end):
return NovaUsage(novaclient(request).usage.get(tenant_id, start, end))
def usage_list(request, start, end):
return [NovaUsage(u) for u in
novaclient(request).usage.list(start, end, True)]
def virtual_interfaces_list(request, instance_id):
return novaclient(request).virtual_interfaces.list(instance_id)
def get_x509_credentials(request):
return novaclient(request).certs.create()
def get_x509_root_certificate(request):
return novaclient(request).certs.get()
def get_password(request, instance_id, private_key=None):
return novaclient(request).servers.get_password(instance_id, private_key)
def instance_volume_attach(request, volume_id, instance_id, device):
return novaclient(request).volumes.create_server_volume(instance_id,
volume_id,
device)
def instance_volume_detach(request, instance_id, att_id):
return novaclient(request).volumes.delete_server_volume(instance_id,
att_id)
def instance_volumes_list(request, instance_id):
from openstack_dashboard.api import cinder
volumes = 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
def hypervisor_list(request):
return novaclient(request).hypervisors.list()
def hypervisor_stats(request):
return novaclient(request).hypervisors.statistics()
def hypervisor_search(request, query, servers=True):
return novaclient(request).hypervisors.search(query, servers)
def evacuate_host(request, host, target=None, on_shared_storage=False):
# TODO(jmolle) This should be change for nova atomic api host_evacuate
hypervisors = 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:
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
def migrate_host(request, host, live_migrate=False, disk_over_commit=False,
block_migration=False):
hypervisors = novaclient(request).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"]:
novaclient(request).servers.live_migrate(
server['uuid'],
None,
block_migration,
disk_over_commit
)
else:
novaclient(request).servers.migrate(server['uuid'])
else:
novaclient(request).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
def tenant_absolute_limits(request, reserved=False):
limits = novaclient(request).limits.get(reserved=reserved).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
def availability_zone_list(request, detailed=False):
return novaclient(request).availability_zones.list(detailed=detailed)
def service_list(request, binary=None):
return novaclient(request).services.list(binary=binary)
def service_enable(request, host, binary):
return novaclient(request).services.enable(host, binary)
def service_disable(request, host, binary, reason=None):
if reason:
return novaclient(request).services.disable_log_reason(host,
binary, reason)
else:
return novaclient(request).services.disable(host, binary)
def aggregate_details_list(request):
result = []
c = novaclient(request)
for aggregate in c.aggregates.list():
result.append(c.aggregates.get_details(aggregate.id))
return result
def aggregate_create(request, name, availability_zone=None):
return novaclient(request).aggregates.create(name, availability_zone)
def aggregate_delete(request, aggregate_id):
return novaclient(request).aggregates.delete(aggregate_id)
def aggregate_get(request, aggregate_id):
return novaclient(request).aggregates.get(aggregate_id)
def aggregate_update(request, aggregate_id, values):
return novaclient(request).aggregates.update(aggregate_id, values)
def aggregate_set_metadata(request, aggregate_id, metadata):
return novaclient(request).aggregates.set_metadata(aggregate_id, metadata)
def host_list(request):
return novaclient(request).hosts.list()
def add_host_to_aggregate(request, aggregate_id, host):
return novaclient(request).aggregates.add_host(aggregate_id, host)
def remove_host_from_aggregate(request, aggregate_id, host):
return novaclient(request).aggregates.remove_host(aggregate_id, host)
def interface_attach(request,
server, port_id=None, net_id=None, fixed_ip=None):
return novaclient(request).servers.interface_attach(server,
port_id,
net_id,
fixed_ip)
def interface_detach(request, server, port_id):
return novaclient(request).servers.interface_detach(server, port_id)
@memoized
def list_extensions(request):
"""List all nova extensions, except the ones in the blacklist."""
blacklist = set(getattr(settings,
'OPENSTACK_NOVA_EXTENSIONS_BLACKLIST', []))
return [
extension for extension in
nova_list_extensions.ListExtManager(novaclient(request)).show_all()
if extension.name not in blacklist
]
@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.
"""
extensions = list_extensions(request)
for extension in extensions:
if extension.name == extension_name:
return True
return False
def can_set_server_password():
features = getattr(settings, 'OPENSTACK_HYPERVISOR_FEATURES', {})
return features.get('can_set_password', False)
def instance_action_list(request, instance_id):
return nova_instance_action.InstanceActionManager(
novaclient(request)).list(instance_id)
def can_set_mount_point():
"""Return the Hypervisor's capability of setting mount points."""
hypervisor_features = getattr(
settings, "OPENSTACK_HYPERVISOR_FEATURES", {})
return hypervisor_features.get("can_set_mount_point", False)
def requires_keypair():
features = getattr(settings, 'OPENSTACK_HYPERVISOR_FEATURES', {})
return features.get('requires_keypair', False)