94 lines
3.6 KiB
Python
94 lines
3.6 KiB
Python
# Copyright 2013 OpenStack Foundation
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# All Rights Reserved.
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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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import functools
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import sys
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from os_xenapi.client import exception as xenapi_exception
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from os_xenapi.client import host_glance
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from oslo_log import log as logging
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import six
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from nova.compute import utils as compute_utils
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import nova.conf
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from nova import exception
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from nova.image import glance
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from nova import utils
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from nova.virt.xenapi import vm_utils
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CONF = nova.conf.CONF
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LOG = logging.getLogger(__name__)
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class GlanceStore(object):
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def _call_glance_plugin(self, context, instance, session, fn, image_id,
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params):
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glance_api_servers = glance.get_api_servers(context)
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sr_path = vm_utils.get_sr_path(session)
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extra_headers = glance.generate_identity_headers(context)
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def pick_glance(kwargs):
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server = next(glance_api_servers)
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kwargs['endpoint'] = server
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kwargs['api_version'] = 2
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# NOTE(sdague): is the return significant here at all?
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return server
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def retry_cb(context, instance, exc=None):
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if exc:
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exc_info = sys.exc_info()
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LOG.debug(six.text_type(exc), exc_info=exc_info)
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compute_utils.add_instance_fault_from_exc(
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context, instance, exc, exc_info)
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cb = functools.partial(retry_cb, context, instance)
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return fn(session, CONF.glance.num_retries, pick_glance, cb, image_id,
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sr_path, extra_headers, **params)
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def download_image(self, context, session, instance, image_id):
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params = {'uuid_stack': vm_utils._make_uuid_stack()}
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try:
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vdis = self._call_glance_plugin(context, instance, session,
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host_glance.download_vhd, image_id,
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params)
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except xenapi_exception.PluginRetriesExceeded:
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raise exception.CouldNotFetchImage(image_id=image_id)
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return vdis
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def upload_image(self, context, session, instance, image_id, vdi_uuids):
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params = {'vdi_uuids': vdi_uuids}
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props = params['properties'] = {}
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props['auto_disk_config'] = instance['auto_disk_config']
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props['os_type'] = instance.get('os_type', None) or (
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CONF.xenserver.default_os_type)
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compression_level = vm_utils.get_compression_level()
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if compression_level:
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props['xenapi_image_compression_level'] = compression_level
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auto_disk_config = utils.get_auto_disk_config_from_instance(instance)
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if utils.is_auto_disk_config_disabled(auto_disk_config):
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props["auto_disk_config"] = "disabled"
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try:
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self._call_glance_plugin(context, instance, session,
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host_glance.upload_vhd, image_id, params)
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except xenapi_exception.PluginRetriesExceeded:
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raise exception.CouldNotUploadImage(image_id=image_id)
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except xenapi_exception.PluginImageNotFound:
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raise exception.ImageNotFound(image_id=image_id)
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