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# vi: ts=4 expandtab
#
# Copyright (C) 2012 Canonical Ltd.
# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
# Copyright (C) 2012 Yahoo! Inc.
#
# Author: Scott Moser <scott.moser@canonical.com>
# Author: Juerg Haefliger <juerg.haefliger@hp.com>
# Author: Joshua Harlow <harlowja@yahoo-inc.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 import handlers
from cloudinit import log as logging
from cloudinit import util
from cloudinit.settings import (PER_ALWAYS)
LOG = logging.getLogger(__name__)
class BootHookPartHandler(handlers.Handler):
def __init__(self, paths, datasource, **_kwargs):
handlers.Handler.__init__(self, PER_ALWAYS)
self.boothook_dir = paths.get_ipath("boothooks")
self.instance_id = None
if datasource:
self.instance_id = datasource.get_instance_id()
def list_types(self):
return [
handlers.type_from_starts_with("#cloud-boothook"),
]
def _write_part(self, payload, filename):
filename = util.clean_filename(filename)
payload = util.dos2unix(payload)
prefix = "#cloud-boothook"
start = 0
if payload.startswith(prefix):
start = len(prefix) + 1
filepath = os.path.join(self.boothook_dir, filename)
contents = payload[start:]
util.write_file(filepath, contents, 0700)
return filepath
def handle_part(self, _data, ctype, filename, payload, _frequency):
if ctype in handlers.CONTENT_SIGNALS:
return
filepath = self._write_part(payload, filename)
try:
env = os.environ.copy()
if self.instance_id is not None:
env['INSTANCE_ID'] = str(self.instance_id)
util.subp([filepath], env=env)
except util.ProcessExecutionError:
util.logexc(LOG, "Boothooks script %s execution error", filepath)
except Exception:
util.logexc(LOG, ("Boothooks unknown "
"error when running %s"), filepath)
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