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#!/usr/bin/python
#
# Fetch login credentials for EC2
# Copyright (C) 2008-2009 Canonical Ltd.
#
# Author: Soren Hansen <soren@canonical.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 pwd
import sys
import ec2init
def setup_user_keys(keys, user, key_prefix):
saved_umask = os.umask(077)
pwent = pwd.getpwnam(user)
ssh_dir = '%s/.ssh' % pwent.pw_dir
if not os.path.exists(ssh_dir):
os.mkdir(ssh_dir)
os.chown(ssh_dir, pwent.pw_uid, pwent.pw_gid)
authorized_keys = '%s/.ssh/authorized_keys' % pwent.pw_dir
fp = open(authorized_keys, 'a')
fp.write(''.join(['%s%s\n' % (key_prefix, key) for key in keys]))
fp.close()
os.chown(authorized_keys, pwent.pw_uid, pwent.pw_gid)
os.umask(saved_umask)
def main():
ec2 = ec2init.EC2Init()
user = ec2.get_cfg_option_str('user')
disable_root = ec2.get_cfg_option_bool('disable_root', True)
try:
keys = ec2.get_ssh_keys()
except Exception, e:
sys.exit(1)
if user:
setup_user_keys(keys, user, '')
if disable_root:
key_prefix = 'command="echo \'Please login as the ubuntu user rather than root user.\';echo;sleep 10" '
else:
key_prefix = ''
setup_user_keys(keys, 'root', key_prefix)
if __name__ == '__main__':
main()
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