478e00a997
variable has a little more meaning and by default look in metadata for 'launch-index' and have ec2 instead look for a different variable (thus allowing more datasources to just work).
103 lines
3.4 KiB
Python
103 lines
3.4 KiB
Python
# vi: ts=4 expandtab
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#
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# Copyright (C) 2012 Canonical Ltd.
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# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
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# Copyright (C) 2012 Yahoo! Inc.
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#
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# Author: Scott Moser <scott.moser@canonical.com>
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# Author: Juerg Haefliger <juerg.haefliger@hp.com>
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# Author: Joshua Harlow <harlowja@yahoo-inc.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 3, as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import copy
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import os
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from cloudinit import log as logging
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LOG = logging.getLogger(__name__)
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# This class is the high level wrapper that provides
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# access to cloud-init objects without exposing the stage objects
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# to handler and or module manipulation. It allows for cloud
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# init to restrict what those types of user facing code may see
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# and or adjust (which helps avoid code messing with each other)
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#
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# It also provides util functions that avoid having to know
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# how to get a certain member from this submembers as well
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# as providing a backwards compatible object that can be maintained
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# while the stages/other objects can be worked on independently...
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class Cloud(object):
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def __init__(self, datasource, paths, cfg, distro, runners):
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self.datasource = datasource
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self.paths = paths
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self.distro = distro
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self._cfg = cfg
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self._runners = runners
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# If a 'user' manipulates logging or logging services
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# it is typically useful to cause the logging to be
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# setup again.
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def cycle_logging(self):
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logging.resetLogging()
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logging.setupLogging(self.cfg)
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@property
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def cfg(self):
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# Ensure that not indirectly modified
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return copy.deepcopy(self._cfg)
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def run(self, name, functor, args, freq=None, clear_on_fail=False):
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return self._runners.run(name, functor, args, freq, clear_on_fail)
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def get_template_filename(self, name):
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fn = self.paths.template_tpl % (name)
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if not os.path.isfile(fn):
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LOG.warn("No template found at %s for template named %s", fn, name)
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return None
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return fn
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# The rest of thes are just useful proxies
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def get_userdata(self, apply_filter=True):
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return self.datasource.get_userdata(apply_filter)
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def get_instance_id(self):
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return self.datasource.get_instance_id()
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@property
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def launch_index(self):
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return self.datasource.launch_index
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def get_public_ssh_keys(self):
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return self.datasource.get_public_ssh_keys()
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def get_locale(self):
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return self.datasource.get_locale()
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def get_hostname(self, fqdn=False):
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return self.datasource.get_hostname(fqdn=fqdn)
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def device_name_to_device(self, name):
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return self.datasource.device_name_to_device(name)
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def get_ipath_cur(self, name=None):
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return self.paths.get_ipath_cur(name)
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def get_cpath(self, name=None):
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return self.paths.get_cpath(name)
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def get_ipath(self, name=None):
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return self.paths.get_ipath(name)
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