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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 StringIO import StringIO
try:
from configobj import ConfigObj
except ImportError:
ConfigObj = None
from cloudinit import util
from cloudinit.settings import PER_INSTANCE
frequency = PER_INSTANCE
LSC_CLIENT_CFG_FILE = "/etc/landscape/client.conf"
distros = ['ubuntu']
# defaults taken from stock client.conf in landscape-client 11.07.1.1-0ubuntu2
LSC_BUILTIN_CFG = {
'client': {
'log_level': "info",
'url': "https://landscape.canonical.com/message-system",
'ping_url': "http://landscape.canonical.com/ping",
'data_path': "/var/lib/landscape/client",
}
}
def handle(name, cfg, cloud, log, _args):
"""
Basically turn a top level 'landscape' entry with a 'client' dict
and render it to ConfigObj format under '[client]' section in
/etc/landscape/client.conf
"""
if not ConfigObj:
log.warn(("'ConfigObj' support not available,"
" running module %s disabled"), name)
return
ls_cloudcfg = cfg.get("landscape", {})
if not isinstance(ls_cloudcfg, dict):
raise Exception(("'landscape' key existed in config,"
" but not a dictionary type,"
" is a %s instead"), util.obj_name(ls_cloudcfg))
merge_data = [
LSC_BUILTIN_CFG,
cloud.paths.join(True, LSC_CLIENT_CFG_FILE),
ls_cloudcfg,
]
merged = merge_together(merge_data)
lsc_client_fn = cloud.paths.join(False, LSC_CLIENT_CFG_FILE)
lsc_dir = cloud.paths.join(False, os.path.dirname(lsc_client_fn))
if not os.path.isdir(lsc_dir):
util.ensure_dir(lsc_dir)
contents = StringIO()
merged.write(contents)
contents.flush()
util.write_file(lsc_client_fn, contents.getvalue())
log.debug("Wrote landscape config file to %s", lsc_client_fn)
def merge_together(objs):
"""
merge together ConfigObj objects or things that ConfigObj() will take in
later entries override earlier
"""
cfg = ConfigObj({})
for obj in objs:
if not obj:
continue
if isinstance(obj, ConfigObj):
cfg.merge(obj)
else:
cfg.merge(ConfigObj(obj))
return cfg
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