478 lines
19 KiB
Python
478 lines
19 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2015 Intel Corporation.
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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 sys
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import time
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from heatclient import exc as heatException
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from oslo_config import cfg
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from toscaparser.utils import yamlparser
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import yaml
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from tacker.common import clients
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from tacker.common import log
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from tacker.extensions import vnfm
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from tacker.openstack.common import jsonutils
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from tacker.openstack.common import log as logging
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from tacker.vm.drivers import abstract_driver
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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OPTS = [
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cfg.IntOpt('stack_retries',
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default=60,
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help=_("Number of attempts to retry for stack"
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"creation/deletion")),
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cfg.IntOpt('stack_retry_wait',
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default=5,
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help=_("Wait time between two successive stack"
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"create/delete retries")),
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]
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CONF.register_opts(OPTS, group='servicevm_heat')
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STACK_RETRIES = cfg.CONF.servicevm_heat.stack_retries
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STACK_RETRY_WAIT = cfg.CONF.servicevm_heat.stack_retry_wait
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HEAT_TEMPLATE_BASE = """
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heat_template_version: 2013-05-23
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"""
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class DeviceHeat(abstract_driver.DeviceAbstractDriver):
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"""Heat driver of hosting device."""
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def __init__(self):
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super(DeviceHeat, self).__init__()
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def get_type(self):
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return 'heat'
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def get_name(self):
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return 'heat'
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def get_description(self):
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return 'Heat infra driver'
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@log.log
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def create_device_template_pre(self, plugin, context, device_template):
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device_template_dict = device_template['device_template']
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vnfd_yaml = device_template_dict['attributes'].get('vnfd')
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if vnfd_yaml is None:
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return
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vnfd_dict = yaml.load(vnfd_yaml)
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KEY_LIST = (('name', 'template_name'), ('description', 'description'))
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device_template_dict.update(
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dict((key, vnfd_dict[vnfd_key]) for (key, vnfd_key) in KEY_LIST
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if ((not key in device_template_dict or
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device_template_dict[key] == '') and
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vnfd_key in vnfd_dict and
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vnfd_dict[vnfd_key] != '')))
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service_types = vnfd_dict.get('service_properties', {}).get('type', [])
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if service_types:
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device_template_dict.setdefault('service_types', []).extend(
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[{'service_type': service_type}
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for service_type in service_types])
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for vdu in vnfd_dict.get('vdus', {}).values():
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mgmt_driver = vdu.get('mgmt_driver')
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if mgmt_driver:
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device_template_dict['mgmt_driver'] = mgmt_driver
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LOG.debug(_('device_template %s'), device_template)
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@log.log
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def _update_params(self, original, paramvalues, match=False):
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for key, value in original.iteritems():
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if not isinstance(value, dict) or 'get_input' not in str(value):
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pass
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elif isinstance(value, dict):
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if not match:
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if key in paramvalues and 'param' in paramvalues[key]:
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self._update_params(value, paramvalues[key]['param'],
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True)
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elif key in paramvalues:
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self._update_params(value, paramvalues[key], False)
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else:
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LOG.debug('Key missing Value: %s', key)
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raise vnfm.InputValuesMissing()
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elif 'get_input' in value:
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if value['get_input'] in paramvalues:
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original[key] = paramvalues[value['get_input']]
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else:
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LOG.debug('Key missing Value: %s', key)
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raise vnfm.InputValuesMissing()
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else:
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self._update_params(value, paramvalues, True)
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@log.log
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def _process_parameterized_input(self, dev_attrs, vnfd_dict):
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param_vattrs_yaml = dev_attrs.pop('param_values', None)
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if param_vattrs_yaml:
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try:
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param_vattrs_dict = yaml.load(param_vattrs_yaml)
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LOG.debug('param_vattrs_yaml', param_vattrs_dict)
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except Exception as e:
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LOG.debug("Not Well Formed: %s", str(e))
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raise vnfm.ParamYAMLNotWellFormed(
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error_msg_details=str(e))
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else:
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self._update_params(vnfd_dict, param_vattrs_dict)
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else:
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raise vnfm.ParamYAMLInputMissing()
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@log.log
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def _process_vdu_network_interfaces(self, vdu_id, vdu_dict, properties,
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template_dict):
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def make_port_dict():
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port_dict = {
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'type': 'OS::Neutron::Port',
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'properties': {
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'port_security_enabled': False
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}
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}
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port_dict['properties'].setdefault('fixed_ips', [])
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return port_dict
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def make_mgmt_outputs_dict(port):
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mgmt_ip = 'mgmt_ip-%s' % vdu_id
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outputs_dict[mgmt_ip] = {
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'description': 'management ip address',
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'value': {
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'get_attr': [port, 'fixed_ips',
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0, 'ip_address']
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}
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}
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def handle_port_creation(network_param, ip_list=[],
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mgmt_port=False):
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port = '%s-%s-port' % (vdu_id, network_param['network'])
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port_dict = make_port_dict()
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if mgmt_port:
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make_mgmt_outputs_dict(port)
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for ip in ip_list:
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port_dict['properties']['fixed_ips'].append({"ip_address": ip})
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port_dict['properties'].update(network_param)
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template_dict['resources'][port] = port_dict
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return port
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networks_list = []
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outputs_dict = template_dict['outputs']
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properties['networks'] = networks_list
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for network_param in vdu_dict[
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'network_interfaces'].values():
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port = None
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if 'addresses' in network_param:
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ip_list = network_param.pop('addresses', [])
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if not isinstance(ip_list, list):
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raise vnfm.IPAddrInvalidInput()
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mgmt_flag = network_param.pop('management', False)
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port = handle_port_creation(network_param, ip_list, mgmt_flag)
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if network_param.pop('management', False):
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port = handle_port_creation(network_param, [], True)
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if port is not None:
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network_param = {
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'port': {'get_resource': port}
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}
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networks_list.append(dict(network_param))
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@log.log
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def create(self, plugin, context, device):
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LOG.debug(_('device %s'), device)
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heatclient_ = HeatClient(context)
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attributes = device['device_template']['attributes'].copy()
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vnfd_yaml = attributes.pop('vnfd', None)
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fields = dict((key, attributes.pop(key)) for key
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in ('stack_name', 'template_url', 'template')
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if key in attributes)
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for key in ('files', 'parameters'):
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if key in attributes:
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fields[key] = jsonutils.loads(attributes.pop(key))
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# overwrite parameters with given dev_attrs for device creation
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dev_attrs = device['attributes'].copy()
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fields.update(dict((key, dev_attrs.pop(key)) for key
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in ('stack_name', 'template_url', 'template')
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if key in dev_attrs))
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for key in ('files', 'parameters'):
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if key in dev_attrs:
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fields.setdefault(key, {}).update(
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jsonutils.loads(dev_attrs.pop(key)))
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LOG.debug('vnfd_yaml %s', vnfd_yaml)
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if vnfd_yaml is not None:
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assert 'template' not in fields
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assert 'template_url' not in fields
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template_dict = yaml.load(HEAT_TEMPLATE_BASE)
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outputs_dict = {}
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template_dict['outputs'] = outputs_dict
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vnfd_dict = yamlparser.simple_ordered_parse(vnfd_yaml)
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LOG.debug('vnfd_dict %s', vnfd_dict)
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if 'get_input' in vnfd_yaml:
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self._process_parameterized_input(dev_attrs, vnfd_dict)
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KEY_LIST = (('description', 'description'),
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)
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for (key, vnfd_key) in KEY_LIST:
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if vnfd_key in vnfd_dict:
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template_dict[key] = vnfd_dict[vnfd_key]
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monitoring_dict = {'vdus': {}}
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for vdu_id, vdu_dict in vnfd_dict.get('vdus', {}).items():
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template_dict.setdefault('resources', {})[vdu_id] = {
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"type": "OS::Nova::Server"
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}
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resource_dict = template_dict['resources'][vdu_id]
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KEY_LIST = (('image', 'vm_image'),
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('flavor', 'instance_type'))
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resource_dict['properties'] = {}
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properties = resource_dict['properties']
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for (key, vdu_key) in KEY_LIST:
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properties[key] = vdu_dict[vdu_key]
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if 'network_interfaces' in vdu_dict:
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self._process_vdu_network_interfaces(vdu_id, vdu_dict,
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properties,
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template_dict)
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if 'user_data' in vdu_dict and 'user_data_format' in vdu_dict:
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properties['user_data_format'] = vdu_dict[
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'user_data_format']
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properties['user_data'] = vdu_dict['user_data']
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elif 'user_data' in vdu_dict or 'user_data_format' in vdu_dict:
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raise vnfm.UserDataFormatNotFound()
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if ('placement_policy' in vdu_dict and
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'availability_zone' in vdu_dict['placement_policy']):
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properties['availability_zone'] = vdu_dict[
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'placement_policy']['availability_zone']
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if 'config' in vdu_dict:
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properties['config_drive'] = True
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metadata = properties.setdefault('metadata', {})
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metadata.update(vdu_dict['config'])
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for key, value in metadata.items():
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metadata[key] = value[:255]
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monitoring_policy = vdu_dict.get('monitoring_policy', 'noop')
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failure_policy = vdu_dict.get('failure_policy', 'noop')
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# Convert the old monitoring specification to the new format
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# This should be removed after Mitaka
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if monitoring_policy == 'ping' and failure_policy == 'respawn':
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vdu_dict['monitoring_policy'] = {'ping': {
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'actions': {
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'failure': 'respawn'
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}}}
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vdu_dict.pop('failure_policy')
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if monitoring_policy != 'noop':
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monitoring_dict['vdus'][vdu_id] = \
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vdu_dict['monitoring_policy']
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# to pass necessary parameters to plugin upwards.
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for key in ('service_type',):
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if key in vdu_dict:
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device.setdefault(
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'attributes', {})[vdu_id] = jsonutils.dumps(
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{key: vdu_dict[key]})
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if monitoring_dict.keys():
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device['attributes']['monitoring_policy'] = jsonutils.dumps(
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monitoring_dict)
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heat_template_yaml = yaml.dump(template_dict)
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fields['template'] = heat_template_yaml
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if not device['attributes'].get('heat_template'):
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device['attributes']['heat_template'] = heat_template_yaml
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if 'stack_name' not in fields:
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name = (__name__ + '_' + self.__class__.__name__ + '-' +
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device['id'])
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if device['attributes'].get('failure_count'):
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name += ('-%s') % str(device['attributes']['failure_count'])
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fields['stack_name'] = name
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# service context is ignored
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LOG.debug(_('service_context: %s'), device.get('service_context', []))
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LOG.debug(_('fields: %s'), fields)
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LOG.debug(_('template: %s'), fields['template'])
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stack = heatclient_.create(fields)
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return stack['stack']['id']
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def create_wait(self, plugin, context, device_dict, device_id):
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heatclient_ = HeatClient(context)
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stack = heatclient_.get(device_id)
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status = stack.stack_status
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stack_retries = STACK_RETRIES
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while status == 'CREATE_IN_PROGRESS' and stack_retries > 0:
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time.sleep(STACK_RETRY_WAIT)
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try:
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stack = heatclient_.get(device_id)
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except Exception:
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LOG.exception(_("Device Instance cleanup may not have "
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"happened because Heat API request failed "
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"while waiting for the stack %(stack)s to be "
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"deleted"), {'stack': device_id})
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break
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status = stack.stack_status
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LOG.debug(_('status: %s'), status)
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stack_retries = stack_retries - 1
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LOG.debug(_('stack status: %(stack)s %(status)s'),
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{'stack': str(stack), 'status': status})
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if stack_retries == 0:
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LOG.warning(_("Resource creation is"
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" not completed within %(wait)s seconds as "
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"creation of Stack %(stack)s is not completed"),
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{'wait': (STACK_RETRIES * STACK_RETRY_WAIT),
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'stack': device_id})
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if status != 'CREATE_COMPLETE':
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raise vnfm.DeviceCreateWaitFailed(device_id=device_id)
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outputs = stack.outputs
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LOG.debug(_('outputs %s'), outputs)
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PREFIX = 'mgmt_ip-'
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mgmt_ips = dict((output['output_key'][len(PREFIX):],
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output['output_value'])
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for output in outputs
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if output.get('output_key', '').startswith(PREFIX))
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if mgmt_ips:
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device_dict['mgmt_url'] = jsonutils.dumps(mgmt_ips)
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@log.log
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def update(self, plugin, context, device_id, device_dict, device):
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# checking if the stack exists at the moment
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heatclient_ = HeatClient(context)
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heatclient_.get(device_id)
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# update config attribute
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config_yaml = device_dict.get('attributes', {}).get('config', '')
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update_yaml = device['device'].get('attributes', {}).get('config', '')
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LOG.debug('yaml orig %(orig)s update %(update)s',
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{'orig': config_yaml, 'update': update_yaml})
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# If config_yaml is None, yaml.load() will raise Attribute Error.
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# So set config_yaml to {}, if it is None.
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if not config_yaml:
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config_dict = {}
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else:
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config_dict = yaml.load(config_yaml) or {}
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update_dict = yaml.load(update_yaml)
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if not update_dict:
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return
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@log.log
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def deep_update(orig_dict, new_dict):
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for key, value in new_dict.items():
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if isinstance(value, dict):
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if key in orig_dict and isinstance(orig_dict[key], dict):
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deep_update(orig_dict[key], value)
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continue
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orig_dict[key] = value
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LOG.debug('dict orig %(orig)s update %(update)s',
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{'orig': config_dict, 'update': update_dict})
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deep_update(config_dict, update_dict)
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LOG.debug('dict new %(new)s update %(update)s',
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{'new': config_dict, 'update': update_dict})
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new_yaml = yaml.dump(config_dict)
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device_dict.setdefault('attributes', {})['config'] = new_yaml
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def update_wait(self, plugin, context, device_id):
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# do nothing but checking if the stack exists at the moment
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heatclient_ = HeatClient(context)
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heatclient_.get(device_id)
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def delete(self, plugin, context, device_id):
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heatclient_ = HeatClient(context)
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heatclient_.delete(device_id)
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@log.log
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def delete_wait(self, plugin, context, device_id):
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heatclient_ = HeatClient(context)
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stack = heatclient_.get(device_id)
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status = stack.stack_status
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stack_retries = STACK_RETRIES
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while (status == 'DELETE_IN_PROGRESS' and stack_retries > 0):
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time.sleep(STACK_RETRY_WAIT)
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try:
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stack = heatclient_.get(device_id)
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except heatException.HTTPNotFound:
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return
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except Exception:
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LOG.exception(_("Device Instance cleanup may not have "
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"happened because Heat API request failed "
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"while waiting for the stack %(stack)s to be "
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"deleted"), {'stack': device_id})
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break
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status = stack.stack_status
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stack_retries = stack_retries - 1
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if stack_retries == 0:
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LOG.warning(_("Resource cleanup for device is"
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" not completed within %(wait)s seconds as "
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"deletion of Stack %(stack)s is not completed"),
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{'wait': (STACK_RETRIES * STACK_RETRY_WAIT),
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'stack': device_id})
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if status != 'DELETE_COMPLETE':
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LOG.warning(_("device (%(device_id)d) deletion is not completed. "
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"%(stack_status)s"),
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{'device_id': device_id, 'stack_status': status})
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@log.log
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def attach_interface(self, plugin, context, device_id, port_id):
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raise NotImplementedError()
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@log.log
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def dettach_interface(self, plugin, context, device_id, port_id):
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raise NotImplementedError()
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class HeatClient(object):
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def __init__(self, context, password=None):
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# context, password are unused
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self.stacks = clients.OpenstackClients().heat.stacks
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def create(self, fields):
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fields = fields.copy()
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fields.update({
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'timeout_mins': 10,
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'disable_rollback': True})
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if 'password' in fields.get('template', {}):
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fields['password'] = fields['template']['password']
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try:
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return self.stacks.create(**fields)
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except heatException.HTTPException:
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type_, value, tb = sys.exc_info()
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raise vnfm.HeatClientException(msg=value)
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def delete(self, stack_id):
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try:
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self.stacks.delete(stack_id)
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except heatException.HTTPNotFound:
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LOG.warning(_("Stack %(stack)s created by service chain driver is "
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"not found at cleanup"), {'stack': stack_id})
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def get(self, stack_id):
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return self.stacks.get(stack_id)
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