cloud-init/cloudinit/handlers/shell_script.py
Joshua Harlow 6cb35e9b0f Start allowing different merging types to be applied
After user data handling splits apart all the different
content types into there various mime messages it is
nice to be able to have each message specify how it should
be merged (mainly for cloud-config or cloud-archive) into
the single cloud config that is eventually used. This 
starts to add a plugable merging framework and the
needed components to activate said headers and merging.
2012-11-20 20:02:48 -08:00

53 lines
1.8 KiB
Python

# 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 ShellScriptPartHandler(handlers.Handler):
def __init__(self, paths, **_kwargs):
handlers.Handler.__init__(self, PER_ALWAYS)
self.script_dir = paths.get_ipath_cur('scripts')
def list_types(self):
return [
handlers.type_from_starts_with("#!"),
]
def handle_part(self, _data, ctype, filename, payload, _frequency):
if ctype in handlers.CONTENT_SIGNALS:
# TODO(harlowja): maybe delete existing things here
return
filename = util.clean_filename(filename)
payload = util.dos2unix(payload)
path = os.path.join(self.script_dir, filename)
util.write_file(path, payload, 0700)