92 lines
3.3 KiB
Python
92 lines
3.3 KiB
Python
# Copyright 2016 Brocade Communications System, Inc.
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# All Rights Reserved.
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#
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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 uuid
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from oslo_config import cfg
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from oslo_log import log as logging
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from oslo_utils import excutils
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from tacker.common import driver_manager
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from tacker.common import log
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from tacker.common import utils
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from tacker.db.nfvo import nfvo_db
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LOG = logging.getLogger(__name__)
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class NfvoPlugin(nfvo_db.NfvoPluginDb):
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"""NFVO reference plugin for NFVO extension
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Implements the NFVO extension and defines public facing APIs for VIM
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operations. NFVO internally invokes the appropriate VIM driver in
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backend based on configured VIM types. Plugin also interacts with VNFM
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extension for providing the specified VIM information
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"""
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supported_extension_aliases = ['nfvo']
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OPTS = [
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cfg.ListOpt(
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'vim_drivers', default=['openstack'],
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help=_('VIM driver for launching VNFs')),
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]
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cfg.CONF.register_opts(OPTS, 'nfvo_vim')
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def __init__(self):
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super(NfvoPlugin, self).__init__()
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self._vim_drivers = driver_manager.DriverManager(
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'tacker.nfvo.vim.drivers',
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cfg.CONF.nfvo_vim.vim_drivers)
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@log.log
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def create_vim(self, context, vim):
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LOG.debug(_('Create vim called with parameters %s'), vim)
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vim_obj = vim['vim']
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vim_type = vim_obj['type']
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vim_obj['id'] = str(uuid.uuid4())
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try:
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self._vim_drivers.invoke(vim_type, 'register_vim', vim_obj=vim_obj)
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res = super(NfvoPlugin, self).create_vim(context, vim_obj)
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return res
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except Exception:
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with excutils.save_and_reraise_exception():
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self._vim_drivers.invoke(vim_type, 'delete_vim_auth',
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vim_id=vim_obj['id'])
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def _get_vim(self, context, vim_id):
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if not self.is_vim_still_in_use(context, vim_id):
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return self.get_vim(context, vim_id)
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@log.log
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def update_vim(self, context, vim_id, vim):
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vim_obj = self._get_vim(context, vim_id)
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utils.deep_update(vim_obj, vim['vim'])
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vim_type = vim_obj['type']
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try:
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self._vim_drivers.invoke(vim_type, 'register_vim', vim_obj=vim_obj)
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return super(NfvoPlugin, self).update_vim(context, vim_id, vim_obj)
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except Exception:
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with excutils.save_and_reraise_exception():
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self._vim_drivers.invoke(vim_type, 'delete_vim_auth',
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vim_id=vim_obj['id'])
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@log.log
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def delete_vim(self, context, vim_id):
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vim_obj = self._get_vim(context, vim_id)
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self._vim_drivers.invoke(vim_obj['type'], 'deregister_vim',
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vim_id=vim_id)
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super(NfvoPlugin, self).delete_vim(context, vim_id)
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