267cb8b14a
Change is required to properly implement logic in fernet-node-sync.sh on kolla-ansible side - to add a check if fernet key store is populated with required number of tokens. Change-Id: I51ed61e34a1dd79532b4528e56a9cd9011d46e6d Related-Bug: #1846789
86 lines
2.6 KiB
Python
86 lines
2.6 KiB
Python
#!/usr/bin/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.
|
|
|
|
# Basically this module will fetch the fernet tokens and compare them to the
|
|
# required time constrains to determine whether the host needs to resync with
|
|
# other nodes in the cluster.
|
|
|
|
from __future__ import print_function
|
|
import argparse
|
|
from datetime import datetime
|
|
from datetime import timedelta
|
|
import json
|
|
import os
|
|
import sys
|
|
|
|
# Adding nosec since this fails bandit B105, 'Possible hardcoded password'.
|
|
TOKEN_PATH = '/etc/keystone/fernet-keys' # nosec
|
|
|
|
|
|
def json_exit(msg=None, failed=False, changed=False):
|
|
if type(msg) is not dict:
|
|
msg = {'msg': str(msg)}
|
|
msg.update({'failed': failed, 'changed': changed})
|
|
print(json.dumps(msg))
|
|
sys.exit()
|
|
|
|
|
|
def has_file(filename_path):
|
|
if not os.path.exists(filename_path):
|
|
return False
|
|
return True
|
|
|
|
|
|
def num_tokens():
|
|
_, _, files = next(os.walk(TOKEN_PATH))
|
|
return len(files)
|
|
|
|
|
|
def tokens_populated(expected):
|
|
return num_tokens() >= int(expected)
|
|
|
|
|
|
def token_stale(seconds, filename='0'):
|
|
max_token_age = datetime.now() - timedelta(seconds=int(seconds))
|
|
filename_path = os.path.join(TOKEN_PATH, filename)
|
|
|
|
if not has_file(filename_path):
|
|
return True
|
|
modified_date = datetime.fromtimestamp(os.path.getmtime(filename_path))
|
|
return modified_date < max_token_age
|
|
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(description='''Checks to see if a fernet
|
|
token no older than a desired time.''')
|
|
parser.add_argument('-t', '--time',
|
|
help='Time in seconds for a token rotation',
|
|
required=True)
|
|
parser.add_argument('-f', '--filename',
|
|
help='Filename of token to check',
|
|
default='0')
|
|
parser.add_argument('-n', '--number',
|
|
help='Minimum number of tokens that should exist',
|
|
required=True)
|
|
args = parser.parse_args()
|
|
|
|
json_exit({
|
|
'populated': tokens_populated(args.number),
|
|
'update_required': token_stale(args.time, args.filename),
|
|
})
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|