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# Copyright (C) 2009-2011 Canonical Ltd. # Copyright (C) 2012 Hewlett-Packard Development Company, L.P. # # Author: Marc Cluet <marc.cluet@canonical.com> # Based on code by Scott Moser <scott.moser@canonical.com> # Author: Juerg Haefliger <juerg.haefliger@hp.com> # # This file is part of cloud-init. See LICENSE file for license information. """ Mcollective ----------- **Summary:** install, configure and start mcollective This module installs, configures and starts mcollective. If the ``mcollective`` key is present in config, then mcollective will be installed and started. Configuration for ``mcollective`` can be specified in the ``conf`` key under ``mcollective``. Each config value consists of a key value pair and will be written to ``/etc/mcollective/server.cfg``. The ``public-cert`` and ``private-cert`` keys, if present in conf may be used to specify the public and private certificates for mcollective. Their values will be written to ``/etc/mcollective/ssl/server-public.pem`` and ``/etc/mcollective/ssl/server-private.pem``. .. note:: The ec2 metadata service is readable by non-root users. If security is a concern, use include-once and ssl urls. **Internal name:** ``cc_mcollective`` **Module frequency:** per instance **Supported distros:** all **Config keys**:: mcollective: conf: <key>: <value> public-cert: | -------BEGIN CERTIFICATE-------- <cert data> -------END CERTIFICATE-------- private-cert: | -------BEGIN CERTIFICATE-------- <cert data> -------END CERTIFICATE-------- """ import errno import six from six import BytesIO # Used since this can maintain comments # and doesn't need a top level section from configobj import ConfigObj from cloudinit import log as logging from cloudinit import util PUBCERT_FILE = "/etc/mcollective/ssl/server-public.pem" PRICERT_FILE = "/etc/mcollective/ssl/server-private.pem" SERVER_CFG = '/etc/mcollective/server.cfg' LOG = logging.getLogger(__name__) def configure(config, server_cfg=SERVER_CFG, pubcert_file=PUBCERT_FILE, pricert_file=PRICERT_FILE): # Read server.cfg (if it exists) values from the # original file in order to be able to mix the rest up. try: old_contents = util.load_file(server_cfg, quiet=False, decode=False) mcollective_config = ConfigObj(BytesIO(old_contents)) except IOError as e: if e.errno != errno.ENOENT: raise else: LOG.debug("Did not find file %s (starting with an empty" " config)", server_cfg) mcollective_config = ConfigObj() for (cfg_name, cfg) in config.items(): if cfg_name == 'public-cert': util.write_file(pubcert_file, cfg, mode=0o644) mcollective_config[ 'plugin.ssl_server_public'] = pubcert_file mcollective_config['securityprovider'] = 'ssl' elif cfg_name == 'private-cert': util.write_file(pricert_file, cfg, mode=0o600) mcollective_config[ 'plugin.ssl_server_private'] = pricert_file mcollective_config['securityprovider'] = 'ssl' else: if isinstance(cfg, six.string_types): # Just set it in the 'main' section mcollective_config[cfg_name] = cfg elif isinstance(cfg, (dict)): # Iterate through the config items, create a section if # it is needed and then add/or create items as needed if cfg_name not in mcollective_config.sections: mcollective_config[cfg_name] = {} for (o, v) in cfg.items(): mcollective_config[cfg_name][o] = v else: # Otherwise just try to convert it to a string mcollective_config[cfg_name] = str(cfg) try: # We got all our config as wanted we'll copy # the previous server.cfg and overwrite the old with our new one util.copy(server_cfg, "%s.old" % (server_cfg)) except IOError as e: if e.errno == errno.ENOENT: # Doesn't exist to copy... pass else: raise # Now we got the whole (new) file, write to disk... contents = BytesIO() mcollective_config.write(contents) util.write_file(server_cfg, contents.getvalue(), mode=0o644) def handle(name, cfg, cloud, log, _args): # If there isn't a mcollective key in the configuration don't do anything if 'mcollective' not in cfg: log.debug(("Skipping module named %s, " "no 'mcollective' key in configuration"), name) return mcollective_cfg = cfg['mcollective'] # Start by installing the mcollective package ... cloud.distro.install_packages(("mcollective",)) # ... and then update the mcollective configuration if 'conf' in mcollective_cfg: configure(config=mcollective_cfg['conf']) # restart mcollective to handle updated config util.subp(['service', 'mcollective', 'restart'], capture=False) # vi: ts=4 expandtab
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