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# 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.
"""
This module is a special module to define functions or other resources
which need to be imported outside of openstack_dashboard.api.nova
(like cinder.py) to avoid cyclic imports.
"""
from django.conf import settings
from glanceclient import exc as glance_exceptions
from novaclient import api_versions
from novaclient import client as nova_client
from horizon import exceptions as horizon_exceptions
from horizon.utils import memoized
from openstack_dashboard.api import base
from openstack_dashboard.api import glance
from openstack_dashboard.api import microversions
from openstack_dashboard.contrib.developer.profiler import api as profiler
# 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})
INSECURE = settings.OPENSTACK_SSL_NO_VERIFY
CACERT = settings.OPENSTACK_SSL_CACERT
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', 'description',
'metadata', 'name', 'private_ip', 'public_ip', 'status', 'uuid',
'image_name', 'VirtualInterfaces', 'flavor', 'key_name', 'fault',
'tenant_id', 'user_id', 'created', 'locked',
'OS-EXT-STS:power_state', 'OS-EXT-STS:task_state',
'OS-EXT-SRV-ATTR:instance_name', 'OS-EXT-SRV-ATTR:host',
'OS-EXT-SRV-ATTR:hostname', 'OS-EXT-SRV-ATTR:kernel_id',
'OS-EXT-SRV-ATTR:ramdisk_id', 'OS-EXT-SRV-ATTR:root_device_name',
'OS-EXT-SRV-ATTR:root_device_name', 'OS-EXT-SRV-ATTR:user_data',
'OS-EXT-SRV-ATTR:reservation_id', 'OS-EXT-SRV-ATTR:launch_index',
'OS-EXT-AZ:availability_zone', 'OS-DCF:diskConfig']
def __init__(self, apiresource, request):
super().__init__(apiresource)
self.request = request
# TODO(gabriel): deprecate making a call to Glance as a fallback.
@property
def image_name(self):
if not self.image:
return None
if hasattr(self.image, 'name'):
return self.image.name
if 'name' in self.image:
return self.image['name']
try:
image = glance.image_get(self.request, self.image['id'])
self.image['name'] = image.name
return image.name
except (glance_exceptions.ClientException,
horizon_exceptions.ServiceCatalogException):
self.image['name'] = None
return None
@property
def availability_zone(self):
return getattr(self, 'OS-EXT-AZ:availability_zone', "")
@property
def has_extended_attrs(self):
return any(getattr(self, attr, None) for attr in [
'OS-EXT-SRV-ATTR:instance_name', 'OS-EXT-SRV-ATTR:host',
'OS-EXT-SRV-ATTR:hostname', 'OS-EXT-SRV-ATTR:kernel_id',
'OS-EXT-SRV-ATTR:ramdisk_id', 'OS-EXT-SRV-ATTR:root_device_name',
'OS-EXT-SRV-ATTR:root_device_name', 'OS-EXT-SRV-ATTR:user_data',
'OS-EXT-SRV-ATTR:reservation_id', 'OS-EXT-SRV-ATTR:launch_index',
])
@property
def internal_name(self):
return getattr(self, 'OS-EXT-SRV-ATTR:instance_name', "")
@property
def host_server(self):
return getattr(self, 'OS-EXT-SRV-ATTR:host', "")
@property
def instance_name(self):
return getattr(self, 'OS-EXT-SRV-ATTR:instance_name', "")
@property
def reservation_id(self):
return getattr(self, 'OS-EXT-SRV-ATTR:reservation_id', "")
@property
def launch_index(self):
return getattr(self, 'OS-EXT-SRV-ATTR:launch_index', "")
@property
def hostname(self):
return getattr(self, 'OS-EXT-SRV-ATTR:hostname', "")
@property
def kernel_id(self):
return getattr(self, 'OS-EXT-SRV-ATTR:kernel_id', "")
@property
def ramdisk_id(self):
return getattr(self, 'OS-EXT-SRV-ATTR:ramdisk_id', "")
@property
def root_device_name(self):
return getattr(self, 'OS-EXT-SRV-ATTR:root_device_name', "")
@property
def user_data(self):
return getattr(self, 'OS-EXT-SRV-ATTR:user_data', "")
@memoized.memoized
def get_microversion(request, features):
client = novaclient(request)
min_ver, max_ver = api_versions._get_server_version_range(client)
return (microversions.get_microversion_for_features(
'nova', features, api_versions.APIVersion, min_ver, max_ver))
def get_auth_params_from_request(request):
"""Extracts properties needed by novaclient call from the request object.
These will be used to memoize the calls to novaclient.
"""
return (
request.user.username,
request.user.token.id,
request.user.tenant_id,
request.user.token.project.get('domain_id'),
base.url_for(request, 'compute'),
base.url_for(request, 'identity')
)
@memoized.memoized
def cached_novaclient(request, version=None):
(
username,
token_id,
project_id,
project_domain_id,
nova_url,
auth_url
) = get_auth_params_from_request(request)
if version is None:
version = VERSIONS.get_active_version()['version']
c = nova_client.Client(version,
username,
token_id,
project_id=project_id,
project_domain_id=project_domain_id,
auth_url=auth_url,
insecure=INSECURE,
cacert=CACERT,
http_log_debug=settings.DEBUG,
auth_token=token_id,
endpoint_override=nova_url)
return c
def novaclient(request, version=None):
if isinstance(version, api_versions.APIVersion):
version = version.get_string()
return cached_novaclient(request, version)
def get_novaclient_with_instance_desc(request):
microversion = get_microversion(request, "instance_description")
return novaclient(request, version=microversion)
@profiler.trace
def server_get(request, instance_id):
return Server(get_novaclient_with_instance_desc(request).servers.get(
instance_id), request)
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