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# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import fnmatch
import logging
from heatclient._i18n import _
from heatclient import exc
logger = logging.getLogger(__name__)
def clear_hook(hc, stack_id, resource_name, hook_type):
try:
hc.resources.signal(
stack_id=stack_id,
resource_name=resource_name,
data={'unset_hook': hook_type})
except exc.HTTPNotFound:
logger.error(
"Stack %(stack)s or resource %(resource)s "
"not found for hook %(hook_type)s",
{'resource': resource_name, 'stack': stack_id,
'hook_type': hook_type})
def clear_wildcard_hooks(hc, stack_id, stack_patterns, hook_type,
resource_pattern):
if stack_patterns:
for resource in hc.resources.list(stack_id):
res_name = resource.resource_name
if fnmatch.fnmatchcase(res_name, stack_patterns[0]):
nested_stack = hc.resources.get(
stack_id=stack_id,
resource_name=res_name)
clear_wildcard_hooks(
hc,
nested_stack.physical_resource_id,
stack_patterns[1:], hook_type, resource_pattern)
else:
for resource in hc.resources.list(stack_id):
res_name = resource.resource_name
if fnmatch.fnmatchcase(res_name, resource_pattern):
clear_hook(hc, stack_id, res_name, hook_type)
def get_hook_type_via_status(hc, stack_id):
# Figure out if the hook should be pre-create, pre-update or
# pre-delete based on the stack status, also sanity assertions
# that we're in-progress.
try:
stack = hc.stacks.get(stack_id=stack_id)
except exc.HTTPNotFound:
raise exc.CommandError(_('Stack not found: %s') % stack_id)
else:
if 'IN_PROGRESS' not in stack.stack_status:
raise exc.CommandError(_('Stack status %s not IN_PROGRESS') %
stack.stack_status)
if 'CREATE' in stack.stack_status:
hook_type = 'pre-create'
elif 'UPDATE' in stack.stack_status:
hook_type = 'pre-update'
elif 'DELETE' in stack.stack_status:
hook_type = 'pre-delete'
else:
raise exc.CommandError(_('Unexpected stack status %s, '
'only create, update and delete supported')
% stack.stack_status)
return hook_type
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