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#!/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 hmac
import os
import random
import stat
import string
import sys
from ansible.utils.encrypt import random_salt
from cryptography import fernet
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives.asymmetric import rsa
from cryptography.hazmat.primitives import serialization
from hashlib import md5
from oslo_utils import uuidutils
import yaml
# NOTE(SamYaple): Update the search path to prefer PROJECT_ROOT as the source
# of packages to import if we are using local tools instead of
# pip installed kolla tools
PROJECT_ROOT = os.path.abspath(os.path.join(
os.path.dirname(os.path.realpath(__file__)), '../..'))
if PROJECT_ROOT not in sys.path:
sys.path.insert(0, PROJECT_ROOT)
def generate_RSA(bits=4096):
new_key = rsa.generate_private_key(
public_exponent=65537,
key_size=bits,
backend=default_backend()
)
private_key = new_key.private_bytes(
encoding=serialization.Encoding.PEM,
format=serialization.PrivateFormat.PKCS8,
encryption_algorithm=serialization.NoEncryption()
).decode()
public_key = new_key.public_key().public_bytes(
encoding=serialization.Encoding.OpenSSH,
format=serialization.PublicFormat.OpenSSH
).decode()
return private_key, public_key
def genpwd(passwords_file, length, uuid_keys, ssh_keys, blank_keys,
fernet_keys, hmac_md5_keys, bcrypt_keys):
try:
with open(passwords_file, 'r') as f:
passwords = yaml.safe_load(f.read())
except FileNotFoundError:
print(f"ERROR: Passwords file \"{passwords_file}\" is missing")
sys.exit(1)
if os.stat(passwords_file).st_mode & stat.S_IROTH:
print(f"WARNING: Passwords file \"{passwords_file}\" is"
" world-readable. The permissions will be changed.")
if os.stat(passwords_file).st_mode & stat.S_IWOTH:
print(f"WARNING: Passwords file \"{passwords_file}\" is"
" world-writeable. The permissions will be changed.")
if not isinstance(passwords, dict):
print("ERROR: Passwords file not in expected key/value format")
sys.exit(1)
for k, v in passwords.items():
if (k in ssh_keys and
(v is None or
v.get('public_key') is None and
v.get('private_key') is None)):
private_key, public_key = generate_RSA()
passwords[k] = {
'private_key': private_key,
'public_key': public_key
}
continue
if v is None:
if k in blank_keys and v is None:
continue
if k in uuid_keys:
passwords[k] = uuidutils.generate_uuid()
elif k in hmac_md5_keys:
passwords[k] = (hmac.new(
uuidutils.generate_uuid().encode(), ''.encode(), md5)
.hexdigest())
elif k in fernet_keys:
passwords[k] = fernet.Fernet.generate_key().decode()
elif k in bcrypt_keys:
# NOTE(wszusmki) To be compatible with the ansible
# password_hash filter, we use the utility function from the
# ansible library.
passwords[k] = random_salt(22)
else:
passwords[k] = ''.join([
random.SystemRandom().choice(
string.ascii_letters + string.digits)
for n in range(length)
])
try:
os.remove(passwords_file)
except OSError:
pass
flags = os.O_WRONLY | os.O_CREAT | os.O_TRUNC
mode = 0o640
with os.fdopen(os.open(passwords_file, flags, mode=mode), 'w') as f:
f.write(yaml.safe_dump(passwords, default_flow_style=False))
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'))
args = parser.parse_args()
passwords_file = os.path.expanduser(args.passwords)
# These keys should be random uuids
uuid_keys = ['rbd_secret_uuid',
'cinder_rbd_secret_uuid',
'gnocchi_project_id',
'gnocchi_resource_id',
'gnocchi_user_id',
'designate_pool_id']
# SSH key pair
ssh_keys = ['kolla_ssh_key', 'nova_ssh_key',
'keystone_ssh_key', 'bifrost_ssh_key',
'octavia_amp_ssh_key', 'neutron_ssh_key',
'haproxy_ssh_key']
# If these keys are None, leave them as None
blank_keys = ['docker_registry_password']
# HMAC-MD5 keys
hmac_md5_keys = ['designate_rndc_key',
'osprofiler_secret']
# Fernet keys
fernet_keys = ['barbican_crypto_key']
# bcrypt salts
bcrypt_keys = ['prometheus_bcrypt_salt']
# length of password
length = 40
genpwd(passwords_file, length, uuid_keys, ssh_keys, blank_keys,
fernet_keys, hmac_md5_keys, bcrypt_keys)
if __name__ == '__main__':
main()
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