ccdf959986
This copyright change reflects previous changes that Juerg made for pylint and pep8 cleanups. From: Juerg Haefliger <juerg.haefliger@hp.com> Date: Mon, 16 Jan 2012 10:45:12 +0100
107 lines
4.0 KiB
Python
107 lines
4.0 KiB
Python
# vi: ts=4 expandtab
|
|
#
|
|
# Copyright (C) 2009-2010 Canonical Ltd.
|
|
# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
|
|
#
|
|
# Author: Scott Moser <scott.moser@canonical.com>
|
|
# Author: Juerg Haefliger <juerg.haefliger@hp.com>
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License version 3, as
|
|
# published by the Free Software Foundation.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
import cloudinit.util as util
|
|
import cloudinit.SshUtil as sshutil
|
|
import os
|
|
import glob
|
|
import subprocess
|
|
|
|
DISABLE_ROOT_OPTS = "no-port-forwarding,no-agent-forwarding," \
|
|
"no-X11-forwarding,command=\"echo \'Please login as the user \\\"$USER\\\" " \
|
|
"rather than the user \\\"root\\\".\';echo;sleep 10\""
|
|
|
|
|
|
def handle(_name, cfg, cloud, log, _args):
|
|
|
|
# remove the static keys from the pristine image
|
|
if cfg.get("ssh_deletekeys", True):
|
|
for f in glob.glob("/etc/ssh/ssh_host_*key*"):
|
|
try:
|
|
os.unlink(f)
|
|
except:
|
|
pass
|
|
|
|
if "ssh_keys" in cfg:
|
|
# if there are keys in cloud-config, use them
|
|
key2file = {
|
|
"rsa_private": ("/etc/ssh/ssh_host_rsa_key", 0600),
|
|
"rsa_public": ("/etc/ssh/ssh_host_rsa_key.pub", 0644),
|
|
"dsa_private": ("/etc/ssh/ssh_host_dsa_key", 0600),
|
|
"dsa_public": ("/etc/ssh/ssh_host_dsa_key.pub", 0644),
|
|
"ecdsa_private": ("/etc/ssh/ssh_host_ecdsa_key", 0600),
|
|
"ecdsa_public": ("/etc/ssh/ssh_host_ecdsa_key.pub", 0644),
|
|
}
|
|
|
|
for key, val in cfg["ssh_keys"].items():
|
|
if key in key2file:
|
|
util.write_file(key2file[key][0], val, key2file[key][1])
|
|
|
|
priv2pub = {'rsa_private': 'rsa_public', 'dsa_private': 'dsa_public',
|
|
'ecdsa_private': 'ecdsa_public', }
|
|
|
|
cmd = 'o=$(ssh-keygen -yf "%s") && echo "$o" root@localhost > "%s"'
|
|
for priv, pub in priv2pub.iteritems():
|
|
if pub in cfg['ssh_keys'] or not priv in cfg['ssh_keys']:
|
|
continue
|
|
pair = (key2file[priv][0], key2file[pub][0])
|
|
subprocess.call(('sh', '-xc', cmd % pair))
|
|
log.debug("generated %s from %s" % pair)
|
|
else:
|
|
# if not, generate them
|
|
for keytype in util.get_cfg_option_list_or_str(cfg, 'ssh_genkeytypes',
|
|
['rsa', 'dsa', 'ecdsa']):
|
|
keyfile = '/etc/ssh/ssh_host_%s_key' % keytype
|
|
if not os.path.exists(keyfile):
|
|
subprocess.call(['ssh-keygen', '-t', keytype, '-N', '',
|
|
'-f', keyfile])
|
|
|
|
util.restorecon_if_possible('/etc/ssh', recursive=True)
|
|
|
|
try:
|
|
user = util.get_cfg_option_str(cfg, 'user')
|
|
disable_root = util.get_cfg_option_bool(cfg, "disable_root", True)
|
|
disable_root_opts = util.get_cfg_option_str(cfg, "disable_root_opts",
|
|
DISABLE_ROOT_OPTS)
|
|
keys = cloud.get_public_ssh_keys()
|
|
|
|
if "ssh_authorized_keys" in cfg:
|
|
cfgkeys = cfg["ssh_authorized_keys"]
|
|
keys.extend(cfgkeys)
|
|
|
|
apply_credentials(keys, user, disable_root, disable_root_opts, log)
|
|
except:
|
|
util.logexc(log)
|
|
log.warn("applying credentials failed!\n")
|
|
|
|
|
|
def apply_credentials(keys, user, disable_root,
|
|
disable_root_opts=DISABLE_ROOT_OPTS, log=None):
|
|
keys = set(keys)
|
|
if user:
|
|
sshutil.setup_user_keys(keys, user, '', log)
|
|
|
|
if disable_root:
|
|
key_prefix = disable_root_opts.replace('$USER', user)
|
|
else:
|
|
key_prefix = ''
|
|
|
|
sshutil.setup_user_keys(keys, 'root', key_prefix, log)
|