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# vi: ts=4 expandtab
#
# Copyright (C) 2011 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
from cloudinit.settings import PER_INSTANCE
from cloudinit import util
frequency = PER_INSTANCE
# This is a tool that cloud init provides
HELPER_TOOL_TPL = '%s/cloud-init/write-ssh-key-fingerprints'
def _get_helper_tool_path(distro):
try:
base_lib = distro.usr_lib_exec
except AttributeError:
base_lib = '/usr/lib'
return HELPER_TOOL_TPL % base_lib
def handle(name, cfg, cloud, log, _args):
helper_path = _get_helper_tool_path(cloud.distro)
if not os.path.exists(helper_path):
log.warn(("Unable to activate module %s,"
" helper tool not found at %s"), name, helper_path)
return
fp_blacklist = util.get_cfg_option_list(cfg,
"ssh_fp_console_blacklist", [])
key_blacklist = util.get_cfg_option_list(cfg,
"ssh_key_console_blacklist",
["ssh-dss"])
try:
cmd = [helper_path]
cmd.append(','.join(fp_blacklist))
cmd.append(','.join(key_blacklist))
(stdout, _stderr) = util.subp(cmd)
util.multi_log("%s\n" % (stdout.strip()),
stderr=False, console=True)
except Exception:
log.warn("Writing keys to the system console failed!")
raise
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