/usr/lib/python2.7/dist-packages/cloudinit/cloud.py is in cloud-init 0.7.6~bzr976-2.
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#
# 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 copy
import os
from cloudinit import log as logging
LOG = logging.getLogger(__name__)
# This class is the high level wrapper that provides
# access to cloud-init objects without exposing the stage objects
# to handler and or module manipulation. It allows for cloud
# init to restrict what those types of user facing code may see
# and or adjust (which helps avoid code messing with each other)
#
# It also provides util functions that avoid having to know
# how to get a certain member from this submembers as well
# as providing a backwards compatible object that can be maintained
# while the stages/other objects can be worked on independently...
class Cloud(object):
def __init__(self, datasource, paths, cfg, distro, runners):
self.datasource = datasource
self.paths = paths
self.distro = distro
self._cfg = cfg
self._runners = runners
# If a 'user' manipulates logging or logging services
# it is typically useful to cause the logging to be
# setup again.
def cycle_logging(self):
logging.resetLogging()
logging.setupLogging(self.cfg)
@property
def cfg(self):
# Ensure that not indirectly modified
return copy.deepcopy(self._cfg)
def run(self, name, functor, args, freq=None, clear_on_fail=False):
return self._runners.run(name, functor, args, freq, clear_on_fail)
def get_template_filename(self, name):
fn = self.paths.template_tpl % (name)
if not os.path.isfile(fn):
LOG.warn("No template found at %s for template named %s", fn, name)
return None
return fn
# The rest of thes are just useful proxies
def get_userdata(self, apply_filter=True):
return self.datasource.get_userdata(apply_filter)
def get_instance_id(self):
return self.datasource.get_instance_id()
@property
def launch_index(self):
return self.datasource.launch_index
def get_public_ssh_keys(self):
return self.datasource.get_public_ssh_keys()
def get_locale(self):
return self.datasource.get_locale()
def get_hostname(self, fqdn=False):
return self.datasource.get_hostname(fqdn=fqdn)
def device_name_to_device(self, name):
return self.datasource.device_name_to_device(name)
def get_ipath_cur(self, name=None):
return self.paths.get_ipath_cur(name)
def get_cpath(self, name=None):
return self.paths.get_cpath(name)
def get_ipath(self, name=None):
return self.paths.get_ipath(name)
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