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# 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 os
import sys
import base64
import ast
from cloudinit import util
from cloudinit.distros import ug_util
from cloudinit.settings import PER_INSTANCE
from vyos.configtree import ConfigTree
frequency = PER_INSTANCE
class VyosError(Exception):
"""Raised when the distro runs into an exception when setting vyos config.
This may happen when the ssh pub key format is wrong.
"""
pass
def set_pass_login(config, user, password, encrypted_pass):
if encrypted_pass:
config.set(['system', 'login', 'user', user, 'authentication', 'encrypted-password'], value=password, replace=True)
else:
config.set(['system', 'login', 'user', user, 'authentication', 'plaintext-password'], value=password, replace=True)
config.set_tag(['system', 'login', 'user'])
config.set(['system', 'login', 'user', user, 'level'], value='admin', replace=True)
def set_ssh_login(config, user, key_string, key_x):
key_type = None
key_data = None
key_name = None
key_parts = key_string.split(None)
for key in key_parts:
if 'ssh-dss' in key or 'ssh-rsa' in key:
key_type = key
try:
if base64.b64decode(key):
key_data = key
except:
pass
if not key_type:
util.logexc(log, 'Key type not defined, wrong ssh key format.')
raise VyosError('Key type not defined, wrong ssh key format.')
if not key_data:
util.logexc(log, 'Key base64 not defined, wrong ssh key format.')
raise VyosError('Key base64 not defined, wrong ssh key format.')
if len(key_parts) > 2:
if key_parts[2] != key_type or key_parts[2] != key_data:
key_name = key_parts[2]
else:
key_name = "cloud-init-%s" % key_x
else:
key_name = "cloud-init-%s" % key_x
config.set(['system', 'login', 'user', user, 'authentication', 'public-keys', key_name , 'key'], value=key_data, replace=True)
config.set(['system', 'login', 'user', user, 'authentication', 'public-keys', key_name , 'type'], value=key_type, replace=True)
config.set_tag(['system', 'login', 'user'])
config.set_tag(['system', 'login', 'user', user, 'authentication', 'public-keys'])
config.set(['system', 'login', 'user', user, 'level'], value='admin', replace=True)
def handle(name, cfg, cloud, log, _args):
cfg_file_name = '/opt/vyatta/etc/config/config.boot'
bak_file_name = '/opt/vyatta/etc/config.boot.default'
metadata = cloud.datasource.metadata
(users, groups) = ug_util.normalize_users_groups(cfg, cloud.distro)
(hostname, fqdn) = util.get_hostname_fqdn(cfg, cloud)
encrypted_pass = False
key_x = 1
if not os.path.exists(cfg_file_name):
file_name = bak_file_name
else:
file_name = cfg_file_name
with open(file_name, 'r') as f:
config_file = f.read()
config = ConfigTree(config_file)
if 'DataSourceAzure' in str(cloud.datasource):
encrypted_pass = True
for key, val in users.items():
user = key
if 'passwd' in val:
password = val.get('passwd')
set_pass_login(config, user, password, encrypted_pass)
vyos_keys = metadata['public-keys']
for ssh_key in vyos_keys:
set_ssh_login(config, user, ssh_key, key_x)
key_x = key_x + 1
else:
for user in users:
password = util.get_cfg_option_str(cfg, "passwd", None)
if password:
set_pass_login(config, user, password, encrypted_pass)
vyos_keys = cloud.get_public_ssh_keys() or []
if "ssh_authorized_keys" in cfg:
cfgkeys = cfg["ssh_authorized_keys"]
vyos_keys.extend(cfgkeys)
for ssh_key in vyos_keys:
set_ssh_login(config, user, ssh_key, key_x)
key_x = key_x + 1
config.set(['service', 'ssh'], replace=True)
config.set(['service', 'ssh', 'port'], value='22', replace=True)
config.set(['service', 'ssh', 'client-keepalive-interval'], value='180', replace=True)
config.set(['interfaces', 'ethernet', 'eth0', 'address'], value='dhcp', replace=True)
config.set_tag(['interfaces', 'ethernet'])
config.set(['system', 'host-name'], value=hostname, replace=True)
try:
with open(cfg_file_name, 'w') as f:
f.write(config.to_string())
except:
util.logexc(log, "Failed to write configs into file %s", file_name)
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