81 lines
3.2 KiB
Python
81 lines
3.2 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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from oslo_log import log as logging
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import six.moves.urllib.parse as urlparse
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import nova.conf
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from nova.i18n import _, _LW
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from nova.virt.xenapi import vm_utils
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LOG = logging.getLogger(__name__)
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CONF = nova.conf.CONF
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class BittorrentStore(object):
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@staticmethod
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def _lookup_torrent_url_fn():
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"""Load a "fetcher" func to get the right torrent URL.
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"""
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if CONF.xenserver.torrent_base_url:
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if '/' not in CONF.xenserver.torrent_base_url:
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LOG.warning(_LW('Value specified in conf file for'
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' xenserver.torrent_base_url does not contain a'
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' slash character, therefore it will not be used'
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' as part of the torrent URL. Specify a valid'
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' base URL as defined by RFC 1808 (see step 6).'))
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def _default_torrent_url_fn(image_id):
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return urlparse.urljoin(CONF.xenserver.torrent_base_url,
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"%s.torrent" % image_id)
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return _default_torrent_url_fn
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raise RuntimeError(_('Cannot create default bittorrent URL'
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' without xenserver.torrent_base_url'
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' configuration option set.'))
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def download_image(self, context, session, instance, image_id):
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params = {}
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params['image_id'] = image_id
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params['uuid_stack'] = vm_utils._make_uuid_stack()
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params['sr_path'] = vm_utils.get_sr_path(session)
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params['torrent_seed_duration'] = CONF.xenserver.torrent_seed_duration
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params['torrent_seed_chance'] = CONF.xenserver.torrent_seed_chance
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params['torrent_max_last_accessed'] = \
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CONF.xenserver.torrent_max_last_accessed
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params['torrent_listen_port_start'] = \
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CONF.xenserver.torrent_listen_port_start
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params['torrent_listen_port_end'] = \
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CONF.xenserver.torrent_listen_port_end
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params['torrent_download_stall_cutoff'] = \
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CONF.xenserver.torrent_download_stall_cutoff
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params['torrent_max_seeder_processes_per_host'] = \
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CONF.xenserver.torrent_max_seeder_processes_per_host
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lookup_fn = self._lookup_torrent_url_fn()
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params['torrent_url'] = lookup_fn(image_id)
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vdis = session.call_plugin_serialized(
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'bittorrent.py', 'download_vhd', **params)
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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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raise NotImplementedError
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