deb-manila/manila/compute/nova.py
Li, Chen b566f5ef61 Switch to v2 version of novaclient
Currently v1_1 version of novaclient is deprecated, so it's required
to switch for v2 version of novaclient.

Change-Id: I824e8659febfeb86721b610a03a8c3027042cb3d
2015-03-31 17:05:07 +08:00

333 lines
12 KiB
Python

# Copyright 2014 Mirantis 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.
"""
Handles all requests to Nova.
"""
import sys
from novaclient import exceptions as nova_exception
from novaclient import service_catalog
from novaclient import utils
from novaclient.v2 import client as nova_client
from novaclient.v2.contrib import assisted_volume_snapshots
from novaclient.v2 import servers as nova_servers
from oslo_config import cfg
from oslo_log import log
from manila.db import base
from manila import exception
from manila.i18n import _
nova_opts = [
cfg.StrOpt('nova_catalog_info',
default='compute:nova:publicURL',
help='Info to match when looking for nova in the service '
'catalog. Format is separated values of the form: '
'<service_type>:<service_name>:<endpoint_type>'),
cfg.StrOpt('nova_catalog_admin_info',
default='compute:nova:adminURL',
help='Same as nova_catalog_info, but for admin endpoint.'),
cfg.StrOpt('os_region_name',
default=None,
help='Region name of this node.'),
cfg.StrOpt('nova_ca_certificates_file',
default=None,
help='Location of CA certificates file to use for nova client '
'requests.'),
cfg.BoolOpt('nova_api_insecure',
default=False,
help='Allow to perform insecure SSL requests to nova.'),
cfg.StrOpt('nova_admin_username',
default='nova',
help='Nova admin username.'),
cfg.StrOpt('nova_admin_password',
help='Nova admin password.'),
cfg.StrOpt('nova_admin_tenant_name',
default='service',
help='Nova admin tenant name.'),
cfg.StrOpt('nova_admin_auth_url',
default='http://localhost:5000/v2.0',
help='Identity service URL.'),
]
CONF = cfg.CONF
CONF.register_opts(nova_opts)
LOG = log.getLogger(__name__)
def novaclient(context):
if context.is_admin and context.project_id is None:
c = nova_client.Client(CONF.nova_admin_username,
CONF.nova_admin_password,
CONF.nova_admin_tenant_name,
CONF.nova_admin_auth_url)
c.authenticate()
return c
compat_catalog = {
'access': {'serviceCatalog': context.service_catalog or []}
}
sc = service_catalog.ServiceCatalog(compat_catalog)
nova_catalog_info = CONF.nova_catalog_info
info = nova_catalog_info
service_type, service_name, endpoint_type = info.split(':')
# extract the region if set in configuration
if CONF.os_region_name:
attr = 'region'
filter_value = CONF.os_region_name
else:
attr = None
filter_value = None
url = sc.url_for(attr=attr,
filter_value=filter_value,
service_type=service_type,
service_name=service_name,
endpoint_type=endpoint_type)
LOG.debug('Novaclient connection created using URL: %s', url)
extensions = [assisted_volume_snapshots]
c = nova_client.Client(context.user_id,
context.auth_token,
context.project_id,
auth_url=url,
insecure=CONF.nova_api_insecure,
cacert=CONF.nova_ca_certificates_file,
extensions=extensions)
# noauth extracts user_id:project_id from auth_token
c.client.auth_token = context.auth_token or '%s:%s' % (context.user_id,
context.project_id)
c.client.management_url = url
return c
def _untranslate_server_summary_view(server):
"""Maps keys for servers summary view."""
d = {}
d['id'] = server.id
d['status'] = server.status
d['flavor'] = server.flavor['id']
d['name'] = server.name
d['image'] = server.image['id']
d['created'] = server.created
d['addresses'] = server.addresses
d['networks'] = server.networks
d['tenant_id'] = server.tenant_id
d['user_id'] = server.user_id
d['security_groups'] = getattr(server, 'security_groups', [])
return d
def _to_dict(obj):
if isinstance(obj, dict):
return obj
elif hasattr(obj, 'to_dict'):
return obj.to_dict()
else:
return obj.__dict__
def translate_server_exception(method):
"""Transforms the exception for the instance.
Note: keeps its traceback intact.
"""
def wrapper(self, ctx, instance_id, *args, **kwargs):
try:
res = method(self, ctx, instance_id, *args, **kwargs)
except nova_exception.ClientException:
exc_type, exc_value, exc_trace = sys.exc_info()
if isinstance(exc_value, nova_exception.NotFound):
exc_value = exception.InstanceNotFound(instance_id=instance_id)
elif isinstance(exc_value, nova_exception.BadRequest):
exc_value = exception.InvalidInput(reason=exc_value.message)
raise exc_value, None, exc_trace
return res
return wrapper
class API(base.Base):
"""API for interacting with novaclient."""
def server_create(self, context, name, image, flavor, key_name=None,
user_data=None, security_groups=None,
block_device_mapping=None,
block_device_mapping_v2=None, nics=None,
availability_zone=None, instance_count=1,
admin_pass=None):
return _untranslate_server_summary_view(
novaclient(context).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)
)
def server_delete(self, context, instance):
novaclient(context).servers.delete(instance)
@translate_server_exception
def server_get(self, context, instance_id):
return _untranslate_server_summary_view(
novaclient(context).servers.get(instance_id)
)
def server_get_by_name_or_id(self, context, instance_name_or_id):
try:
server = utils.find_resource(
novaclient(context).servers, instance_name_or_id)
except nova_exception.CommandError as e:
msg = _("Failed to get Nova VM. %s") % e
raise exception.ManilaException(msg)
return _untranslate_server_summary_view(server)
def server_list(self, context, search_opts=None, all_tenants=False):
if search_opts is None:
search_opts = {}
if all_tenants:
search_opts['all_tenants'] = True
else:
search_opts['project_id'] = context.project_id
servers = [_untranslate_server_summary_view(s)
for s in novaclient(context).servers.list(True,
search_opts)]
return servers
@translate_server_exception
def server_pause(self, context, instance_id):
novaclient(context).servers.pause(instance_id)
@translate_server_exception
def server_unpause(self, context, instance_id):
novaclient(context).servers.unpause(instance_id)
@translate_server_exception
def server_suspend(self, context, instance_id):
novaclient(context).servers.suspend(instance_id)
@translate_server_exception
def server_resume(self, context, instance_id):
novaclient(context).servers.resume(instance_id)
@translate_server_exception
def server_reboot(self, context, instance_id, soft_reboot=False):
hardness = nova_servers.REBOOT_HARD
if soft_reboot:
hardness = nova_servers.REBOOT_SOFT
novaclient(context).servers.reboot(instance_id, hardness)
@translate_server_exception
def server_rebuild(self, context, instance_id, image_id, password=None):
return _untranslate_server_summary_view(
novaclient(context).servers.rebuild(instance_id, image_id,
password)
)
@translate_server_exception
def instance_volume_attach(self, context, instance_id, volume_id,
device=None):
if device == 'auto':
device = None
return novaclient(context).volumes.create_server_volume(instance_id,
volume_id,
device)
@translate_server_exception
def instance_volume_detach(self, context, instance_id, att_id):
return novaclient(context).volumes.delete_server_volume(instance_id,
att_id)
@translate_server_exception
def instance_volumes_list(self, context, instance_id):
from manila.volume import cinder
volumes = novaclient(context).volumes.get_server_volumes(instance_id)
for volume in volumes:
volume_data = cinder.cinderclient(context).volumes.get(volume.id)
volume.name = volume_data.name
return volumes
@translate_server_exception
def server_update(self, context, instance_id, name):
return _untranslate_server_summary_view(
novaclient(context).servers.update(instance_id, name=name)
)
def update_server_volume(self, context, instance_id, attachment_id,
new_volume_id):
novaclient(context).volumes.update_server_volume(instance_id,
attachment_id,
new_volume_id)
def keypair_create(self, context, name):
return novaclient(context).keypairs.create(name)
def keypair_import(self, context, name, public_key):
return novaclient(context).keypairs.create(name, public_key)
def keypair_delete(self, context, keypair_id):
novaclient(context).keypairs.delete(keypair_id)
def keypair_list(self, context):
return novaclient(context).keypairs.list()
def image_list(self, context):
return novaclient(context).images.list()
def add_security_group_to_server(self, context, server, security_group):
return novaclient(context).servers.add_security_group(server,
security_group)
def security_group_create(self, context, name, description=""):
return novaclient(context).security_groups.create(name, description)
def security_group_get(self, context, group_id):
return novaclient(context).security_groups.get(group_id)
def security_group_list(self, context, search_opts=None):
return novaclient(context).security_groups.list(search_opts)
def security_group_rule_create(self, context, parent_group_id,
ip_protocol=None, from_port=None,
to_port=None, cidr=None, group_id=None):
return novaclient(context).security_group_rules.create(
parent_group_id, ip_protocol, from_port, to_port, cidr, group_id)
def security_group_rule_delete(self, context, rule):
return novaclient(context).security_group_rules.delete(rule)
def fixed_ip_reserve(self, context, fixed_ip):
return novaclient(context).fixed_ips.reserve(fixed_ip)
def fixed_ip_unreserve(self, context, fixed_ip):
return novaclient(context).fixed_ips.unreserve(fixed_ip)
def fixed_ip_get(self, context, fixed_ip):
return _to_dict(novaclient(context).fixed_ips.get(fixed_ip))
def network_get(self, context, network_id):
"""Return network data by its ID."""
return _to_dict(novaclient(context).networks.get(network_id))