74 lines
2.5 KiB
Python
74 lines
2.5 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.conf import settings
|
|
from django.utils.translation import ugettext_lazy as _
|
|
|
|
from horizon import exceptions
|
|
|
|
from openstack_dashboard import api
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
def flavor_list(request):
|
|
"""Utility method to retrieve a list of flavors."""
|
|
try:
|
|
return api.nova.flavor_list(request)
|
|
except Exception:
|
|
exceptions.handle(request,
|
|
_('Unable to retrieve instance flavors.'))
|
|
return []
|
|
|
|
|
|
def sort_flavor_list(request, flavors):
|
|
"""Utility method to sort a list of flavors.
|
|
By default, returns the available flavors, sorted by RAM
|
|
usage (ascending). Override these behaviours with a
|
|
CREATE_INSTANCE_FLAVOR_SORT dict
|
|
in local_settings.py.
|
|
"""
|
|
def get_key(flavor, sort_key):
|
|
try:
|
|
return getattr(flavor, sort_key)
|
|
except AttributeError:
|
|
LOG.warning('Could not find sort key "%s". Using the default '
|
|
'"ram" instead.', sort_key)
|
|
return getattr(flavor, 'ram')
|
|
try:
|
|
flavor_sort = getattr(settings, 'CREATE_INSTANCE_FLAVOR_SORT', {})
|
|
sort_key = flavor_sort.get('key', 'ram')
|
|
rev = flavor_sort.get('reverse', False)
|
|
if not callable(sort_key):
|
|
key = lambda flavor: get_key(flavor, sort_key)
|
|
else:
|
|
key = sort_key
|
|
flavor_list = [(flavor.id, '%s' % flavor.name)
|
|
for flavor in sorted(flavors, key=key, reverse=rev)]
|
|
return flavor_list
|
|
except Exception:
|
|
exceptions.handle(request,
|
|
_('Unable to sort instance flavors.'))
|
|
return []
|
|
|
|
|
|
def availability_zone_list(request):
|
|
"""Utility method to retrieve a list of availability zones."""
|
|
try:
|
|
return api.nova.availability_zone_list(request)
|
|
except Exception:
|
|
exceptions.handle(request,
|
|
_('Unable to retrieve Nova availability zones.'))
|
|
return []
|