114 lines
4.5 KiB
Python
114 lines
4.5 KiB
Python
# Copyright 2010 Jacob Kaplan-Moss
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_utils import uuidutils
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from novaclient import base
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from novaclient import exceptions
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from novaclient.i18n import _
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class Image(base.Resource):
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HUMAN_ID = True
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def __repr__(self):
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return "<Image: %s>" % self.name
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class GlanceManager(base.Manager):
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"""Use glance directly from service catalog.
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This is used to do name to id lookups for images and listing images for
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the --image-with option to the 'boot' command. Do not use it
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for anything else besides that. You have been warned.
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"""
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resource_class = Image
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def find_image(self, name_or_id):
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"""Find an image by name or id (user provided input)."""
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with self.alternate_service_type(
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'image', allowed_types=('image',)):
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# glance catalog entries are the unversioned endpoint, so
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# we need to jam a version bit in here.
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if uuidutils.is_uuid_like(name_or_id):
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# if it's a uuid, then just go collect the info and be
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# done with it.
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return self._get('/v2/images/%s' % name_or_id, None)
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else:
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matches = self._list('/v2/images?name=%s' % name_or_id,
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"images")
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num_matches = len(matches)
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if num_matches == 0:
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msg = "No %s matching %s." % (
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self.resource_class.__name__, name_or_id)
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raise exceptions.NotFound(404, msg)
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elif num_matches > 1:
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msg = (_("Multiple %(class)s matches found for "
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"'%(name)s', use an ID to be more specific.") %
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{'class': self.resource_class.__name__.lower(),
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'name': name_or_id})
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raise exceptions.NoUniqueMatch(msg)
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else:
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matches[0].append_request_ids(matches.request_ids)
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return matches[0]
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def find_images(self, names_or_ids):
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"""Find multiple images by name or id (user provided input).
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:param names_or_ids: A list of strings to use to find images.
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:returns: novaclient.v2.images.Image objects for each images found
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:raises exceptions.NotFound: If one or more images is not found
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:raises exceptions.ClientException: If the image service returns any
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unexpected images.
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NOTE: This method always makes two calls to the image service, even if
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only one image is provided by ID and is returned in the first query.
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"""
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with self.alternate_service_type(
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'image', allowed_types=('image',)):
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matches = self._list('/v2/images?id=in:%s' % ','.join(
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names_or_ids), 'images')
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matches.extend(self._list('/v2/images?names=in:%s' % ','.join(
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names_or_ids), 'images'))
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missed = (set(names_or_ids) -
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set(m.name for m in matches) -
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set(m.id for m in matches))
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if missed:
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msg = _("Unable to find image(s): %(images)s") % {
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"images": ",".join(missed)}
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raise exceptions.NotFound(404, msg)
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for match in matches:
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match.append_request_ids(matches.request_ids)
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additional = []
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for i in matches:
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if i.name not in names_or_ids and i.id not in names_or_ids:
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additional.append(i)
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if additional:
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msg = _('Additional images found in response')
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raise exceptions.ClientException(500, msg)
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return matches
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def list(self):
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"""
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Get a detailed list of all images.
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:rtype: list of :class:`Image`
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"""
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with self.alternate_service_type('image', allowed_types=('image',)):
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return self._list('/v2/images', 'images')
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