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# vi: ts=4 expandtab
#
# Copyright (C) 2008-2010 Canonical Ltd.
#
# Author: Chuck Short <chuck.short@canonical.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 yaml
import cloudinit
import cloudinit.util as util
import sys
import traceback
per_instance="once-per-instance"
per_always="always"
class CloudConfig():
cfgfile = None
cfg = None
def __init__(self,cfgfile):
self.cloud = cloudinit.CloudInit()
self.cfg = self.get_config_obj(cfgfile)
self.cloud.get_data_source()
def get_config_obj(self,cfgfile):
try:
cfg = util.read_conf(cfgfile)
except:
cloudinit.log.critical("Failed loading of cloud config '%s'. Continuing with empty config\n" % cfgfile)
cloudinit.log.debug(traceback.format_exc() + "\n")
cfg = None
if cfg is None: cfg = { }
return(util.mergedict(cfg,self.cloud.cfg))
def handle(self, name, args, freq=None):
try:
mod = __import__("cc_" + name.replace("-","_"),globals())
def_freq = getattr(mod, "frequency",per_instance)
handler = getattr(mod, "handle")
if not freq:
freq = def_freq
self.cloud.sem_and_run("config-" + name, freq, handler,
[ name, self.cfg, self.cloud, cloudinit.log, args ])
except:
raise
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