kolla-ansible/kolla_ansible/cmd/writepwd.py
Scott Solkhon 6bf74aa20d Support storing passwords in Hashicorp Vault
This commit adds two new cli commands to allow an operator
to read and write passwords into a configured Hashicorp Vault
KV.

Change-Id: Icf0eaf7544fcbdf7b83f697cc711446f47118a4d
2021-06-30 15:16:12 +01:00

121 lines
4.1 KiB
Python
Executable File

#!/usr/bin/env python3
# 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 argparse
import os
import sys
import hvac
import yaml
from kolla_ansible.hashi_vault import hashicorp_vault_client
def writepwd(passwords_file, vault_kv_path, vault_mount_point, vault_namespace,
vault_addr, vault_role_id, vault_secret_id, vault_token,
vault_cacert):
with open(passwords_file, 'r') as f:
passwords = yaml.safe_load(f.read())
if not isinstance(passwords, dict):
print("ERROR: Passwords file not in expected key/value format")
sys.exit(1)
client = hashicorp_vault_client(vault_namespace, vault_addr, vault_role_id,
vault_secret_id, vault_token, vault_cacert)
for key, value in passwords.items():
# Ignore empty values
if not value:
continue
if isinstance(value, str):
value = dict(password=value)
try:
remote_value = client.secrets.kv.v2.read_secret_version(
mount_point=vault_mount_point,
path="{}/{}".format(vault_kv_path, key))
except hvac.exceptions.InvalidPath:
# Add to KV if value does not exists
remote_value = None
# Update KV is value has changed or it does not exist
if not remote_value or remote_value['data']['data'] != value:
client.secrets.kv.v2.create_or_update_secret(
mount_point=vault_mount_point,
path="{}/{}".format(vault_kv_path, key),
secret=value)
def main():
parser = argparse.ArgumentParser()
parser.add_argument(
'-p', '--passwords', type=str,
default=os.path.abspath('/etc/kolla/passwords.yml'),
help='Path to the passwords.yml file')
parser.add_argument(
'-kv', '--vault-mount-point', type=str,
default='kv',
help='Path to the KV mount point')
parser.add_argument(
'-kvp', '--vault-kv-path', type=str,
default='kolla_passwords',
help='Path to store passwords within your configured KV mount point')
parser.add_argument(
'-n', '--vault-namespace', type=str,
default='',
help='Vault namespace (enterprise only)')
parser.add_argument(
'-v', '--vault-addr', type=str,
required=True,
help='Address to connect to an existing Hashicorp Vault')
parser.add_argument(
'-r', '--vault-role-id', type=str,
default='',
help='Role-ID to authenticate to Vault. This must be used in '
'conjunction with --secret-id')
parser.add_argument(
'-s', '--vault-secret-id', type=str,
default='',
help='Secret-ID to authenticate to Vault. This must be used in '
'conjunction with --role-id')
parser.add_argument(
'-t', '--vault-token', type=str,
default='',
help='Vault token to authenticate to Vault')
parser.add_argument(
'-c', '--vault-cacert', type=str,
default='',
help='Path to CA certificate file')
args = parser.parse_args()
passwords_file = os.path.expanduser(args.passwords)
vault_kv_path = args.vault_kv_path
vault_mount_point = args.vault_mount_point
vault_namespace = args.vault_namespace
vault_addr = args.vault_addr
vault_role_id = args.vault_role_id
vault_secret_id = args.vault_secret_id
vault_token = args.vault_token
vault_cacert = os.path.expanduser(args.vault_cacert)
writepwd(passwords_file, vault_kv_path, vault_mount_point, vault_namespace,
vault_addr, vault_role_id, vault_secret_id, vault_token,
vault_cacert)
if __name__ == '__main__':
main()