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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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