# octavia.image.drivers.glance_driver

# Source code for octavia.image.drivers.glance_driver

    # Copyright 2020 Red Hat, Inc. All rights reserved.
    #
    # 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.

    from oslo_config import cfg
    from oslo_log import log as logging

    from octavia.common import clients
    from octavia.common import constants
    from octavia.common import exceptions
    from octavia.image import image_base

    LOG = logging.getLogger(__name__)

    CONF = cfg.CONF

    class ImageManager(image_base.ImageBase):
        '''Image implementation of virtual machines via Glance.'''

        def __init__(self):
            super().__init__()
            # Must initialize glance api
            self._glance_client = clients.GlanceAuth.get_glance_client(
                service_name=CONF.glance.service_name,
                endpoint=CONF.glance.endpoint,
                region=CONF.glance.region_name,
                endpoint_type=CONF.glance.endpoint_type,
                insecure=CONF.glance.insecure,
                cacert=CONF.glance.ca_certificates_file
            )
            self.manager = self._glance_client.images

        def get_image_id_by_tag(self, image_tag, image_owner=None):
            """Get image ID by image tag and owner

            :param image_tag: image tag
            :param image_owner: optional image owner
            :raises: ImageGetException if no images found with given tag
            :return: image id
            """
            filters = {'tag': [image_tag],
                       'status': constants.GLANCE_IMAGE_ACTIVE}
            if image_owner:
                filters.update({'owner': image_owner})

            images = list(self.manager.list(
                filters=filters, sort='created_at:desc', limit=2))

            if not images:
                raise exceptions.ImageGetException(tag=image_tag)
            image_id = images[0]['id']
            num_images = len(images)
            if num_images > 1:
                LOG.warning("A single Glance image should be tagged with %(tag)s "
                            "tag, but at least two were found. Using "
                            "%(image_id)s.",
                            {'tag': image_tag, 'image_id': image_id})
            return image_id

this page last updated: 2025-04-03 17:35:57

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