horizon/openstack_dashboard/dashboards/admin/aggregates/panel.py

41 lines
1.5 KiB
Python

# 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.
import logging
from django.utils.translation import ugettext_lazy as _
import horizon
from openstack_dashboard.api import nova
LOG = logging.getLogger(__name__)
class Aggregates(horizon.Panel):
name = _("Host Aggregates")
slug = 'aggregates'
permissions = ('openstack.services.compute',)
def allowed(self, context):
# extend basic permission-based check with a check to see whether
# the Aggregates extension is even enabled in nova
try:
if not nova.extension_supported('Aggregates', context['request']):
return False
except Exception:
LOG.error("Call to list supported extensions failed. This is "
"likely due to a problem communicating with the Nova "
"endpoint. Host Aggregates panel will not be displayed.")
return False
return super(Aggregates, self).allowed(context)