2341faf8bc
This is breaking nova keypair creation and seems to be a regression in nova (https://bugs.launchpad.net/nova/+bug/1481084) According to the sshd man page the optional key comment field should be ignored. Change-Id: I5e6f03c7a7848b049766a57e2a30d0819b58904f
59 lines
1.9 KiB
Python
59 lines
1.9 KiB
Python
# Copyright (c) 2013 Mirantis Inc.
|
|
#
|
|
# 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 os
|
|
|
|
from oslo_concurrency import processutils
|
|
import paramiko
|
|
import six
|
|
|
|
from sahara import exceptions as ex
|
|
from sahara.i18n import _
|
|
from sahara.utils import tempfiles
|
|
|
|
|
|
def to_paramiko_private_key(pkey):
|
|
"""Convert private key (str) to paramiko-specific RSAKey object."""
|
|
return paramiko.RSAKey(file_obj=six.StringIO(pkey))
|
|
|
|
|
|
def generate_key_pair(key_length=2048):
|
|
"""Create RSA key pair with specified number of bits in key.
|
|
|
|
Returns tuple of private and public keys.
|
|
"""
|
|
with tempfiles.tempdir() as tmpdir:
|
|
keyfile = os.path.join(tmpdir, 'tempkey')
|
|
args = [
|
|
'ssh-keygen',
|
|
'-q', # quiet
|
|
'-N', '', # w/o passphrase
|
|
'-t', 'rsa', # create key of rsa type
|
|
'-f', keyfile, # filename of the key file
|
|
'-C', 'Generated-by-Sahara' # key comment
|
|
]
|
|
if key_length is not None:
|
|
args.extend(['-b', key_length])
|
|
processutils.execute(*args)
|
|
if not os.path.exists(keyfile):
|
|
raise ex.SystemError(_("Private key file hasn't been created"))
|
|
private_key = open(keyfile).read()
|
|
public_key_path = keyfile + '.pub'
|
|
if not os.path.exists(public_key_path):
|
|
raise ex.SystemError(_("Public key file hasn't been created"))
|
|
public_key = open(public_key_path).read()
|
|
|
|
return private_key, public_key
|