96 lines
3.4 KiB
Python
96 lines
3.4 KiB
Python
# Copyright 2015 Red Hat, Inc.
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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 six import iteritems
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import yaml
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from heatclient.common import template_utils
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from tripleo_common import constants
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from tripleo_common.utils import swift as swiftutils
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def add_breakpoints_cleanup_into_env(env):
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template_utils.deep_update(env, {
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'resource_registry': {
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'resources': {'*': {'*': {
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constants.UPDATE_RESOURCE_NAME: {'hooks': []}}}}
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}
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})
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def search_stack(stack_data, key_name):
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if isinstance(stack_data, list):
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for item in stack_data:
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result = search_stack(item, key_name)
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if result:
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return result
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elif isinstance(stack_data, dict):
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for k, v in iteritems(stack_data):
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if k == key_name:
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return v
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else:
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result = search_stack(v, key_name)
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if result:
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return result
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def get_exclusive_neutron_driver(drivers):
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if not drivers:
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return
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mutually_exclusive_drivers = constants.EXCLUSIVE_NEUTRON_DRIVERS
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if isinstance(drivers, str):
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drivers = [drivers]
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for d in mutually_exclusive_drivers:
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if d in drivers:
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return d
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def check_neutron_mechanism_drivers(env, stack, plan_client, container):
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force_update = env.get('parameter_defaults').get(
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'ForceNeutronDriverUpdate', False)
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# Forcing an update and skip checks is need to support migrating from one
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# driver to another
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if force_update:
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return
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driver_key = 'NeutronMechanismDrivers'
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current_drivers = search_stack(stack._info, driver_key)
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# TODO(beagles): We may need to move or copy this check earlier
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# to automagically pull in an openvswitch ML2 compatibility driver.
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current_driver = get_exclusive_neutron_driver(current_drivers)
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configured_drivers = env.get('parameter_defaults').get(driver_key)
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new_driver = None
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if configured_drivers:
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new_driver = get_exclusive_neutron_driver(configured_drivers)
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else:
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# TODO(beagles): we need to look for a better way to
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# get the current template default value. This is fragile
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# with respect to changing filenames, etc.
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ml2_tmpl = swiftutils.get_object_string(
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plan_client,
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container,
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'puppet/services/neutron-plugin-ml2.yaml')
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ml2_def = yaml.safe_load(ml2_tmpl)
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default_drivers = ml2_def.get('parameters', {}).get(driver_key,
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{}).get('default')
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new_driver = get_exclusive_neutron_driver(default_drivers)
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if current_driver and new_driver and current_driver != new_driver:
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msg = ("Unable to switch from {} to {} neutron "
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"mechanism drivers on upgrade. Please consult the "
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"documentation.").format(current_driver, new_driver)
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return msg
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