heat-cfntools/bin/cfn-get-metadata
Simon Pasquier 63d70cd0ec Implement -k option for cfn-get-metadata
The -k argument can be a top-level key or a nested key in which case
the keys are separated by dots (eg "foo.bar"). In case a key contains a
dot character, it needs to be surrounded by single quotes (eg
"foo.'bar.1'.fred).
If the -k option is not provided, the command prints out the full
metadata structure as before.

Change-Id: Ib05d39672086001b83e8d7f56bc42cc4ba75751c
Fixes: bug #1183299
2013-09-10 15:56:25 +02:00

86 lines
3.0 KiB
Python
Executable File

#!/usr/bin/env python
#
# 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.
"""
Implements cfn-get-metadata CloudFormation functionality
"""
import argparse
import logging
from heat_cfntools.cfntools import cfn_helper
description = " "
parser = argparse.ArgumentParser(description=description)
parser.add_argument('-s', '--stack',
dest="stack_name",
help="A Heat stack name",
required=True)
parser.add_argument('-r', '--resource',
dest="logical_resource_id",
help="A Heat logical resource ID",
required=True)
parser.add_argument('--access-key',
dest="access_key",
help="A Keystone access key",
required=False)
parser.add_argument('--secret-key',
dest="secret_key",
help="A Keystone secret key",
required=False)
parser.add_argument('--region',
dest="region",
help="Openstack region",
required=False)
parser.add_argument('--credential-file',
dest="credential_file",
help="credential-file",
required=False)
parser.add_argument('-u', '--url',
dest="url",
help="service url",
required=False)
parser.add_argument('-k', '--key',
dest="key",
help="key",
required=False)
args = parser.parse_args()
if not args.stack_name:
print('The Stack name must not be empty.')
exit(1)
if not args.logical_resource_id:
print('The Resource ID must not be empty')
exit(1)
log_format = '%(levelname)s [%(asctime)s] %(message)s'
logging.basicConfig(format=log_format, level=logging.DEBUG)
LOG = logging.getLogger('cfntools')
log_file_name = "/var/log/cfn-get-metadata.log"
file_handler = logging.FileHandler(log_file_name)
file_handler.setFormatter(logging.Formatter(log_format))
LOG.addHandler(file_handler)
metadata = cfn_helper.Metadata(args.stack_name,
args.logical_resource_id,
access_key=args.access_key,
secret_key=args.secret_key,
region=args.region,
credentials_file=args.credential_file)
metadata.retrieve()
LOG.debug(str(metadata))
metadata.display(args.key)