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# vi: ts=4 expandtab
#
# Copyright (C) 2012 Yahoo! Inc.
#
# 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 base64
import os
from cloudinit import util
from cloudinit.settings import PER_INSTANCE
frequency = PER_INSTANCE
DEFAULT_PERMS = 0644
def handle(name, cfg, _cloud, log, _args):
files = cfg.get('files')
if not files:
log.debug(("Skipping module named %s,"
" no/empty 'files' key in configuration"), name)
return
write_files(name, files, log)
def write_files(name, files, log):
if not files:
return
for (i, f_info) in enumerate(files):
path = f_info.get('path')
if not path:
log.warn("No path provided to write for entry %s in module %s",
i + 1, name)
continue
path = os.path.abspath(path)
contents = decode_string(f_info.get('content', ''),
f_info.get('compression'))
(u, g) = util.extract_usergroup(f_info.get('owner'))
perms = safe_int(f_info.get('permissions'), DEFAULT_PERMS)
util.write_file(path, contents, mode=perms)
util.chownbyname(path, u, g)
def safe_int(text, default):
try:
return int(text)
except (TypeError, ValueError):
return default
def decode_string(contents, content_type):
if util.is_true(content_type, addons=['gzip', 'gz']):
contents_dec = base64.b64decode(contents)
contents = util.decomp_gzip(contents_dec, quiet=False)
return contents
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