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# vi: ts=4 expandtab
#
# Copyright (C) 2009-2011 Canonical Ltd.
#
# Author: Marc Cluet <marc.cluet@canonical.com>
# Based on code by Scott Moser <scott.moser@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 os
import pwd
import socket
import subprocess
import fileinput
import StringIO
import ConfigParser
import cloudinit.CloudConfig as cc
# Our fake header section
class FakeSecHead(object):
def __init__(self, fp):
self.fp = fp
self.sechead = '[nullsection]\n'
def readline(self):
if self.sechead:
try: return self.sechead
finally: self.sechead = None
else: return self.fp.readline()
def handle(name,cfg,cloud,log,args):
# If there isn't a mcollective key in the configuration don't do anything
if not cfg.has_key('mcollective'): return
mcollective_cfg = cfg['mcollective']
# Start by installing the mcollective package ...
cc.install_packages(("mcollective",))
# ... and then update the mcollective configuration
if mcollective_cfg.has_key('conf'):
# Create object for reading server.cfg values
mcollective_config = ConfigParser.ConfigParser()
# Read server.cfg values from original file in order to be able to mix the rest up
mcollective_config.readfp(FakeSecHead(open('/etc/mcollective/server.cfg')))
for cfg_name, cfg in mcollective_cfg['conf'].iteritems():
# Iterate throug the config items, we'll use ConfigParser.set
# to overwrite or create new items as needed
for o, v in cfg.iteritems():
mcollective_config.set(cfg_name,o,v)
# We got all our config as wanted we'll rename
# the previous server.cfg and create our new one
os.rename('/etc/mcollective/server.cfg','/etc/mcollective/server.cfg.old')
outputfile = StringIO.StringIO()
mcollective_config.write(outputfile)
# Now we got the whole file, write to disk except first line
final_configfile = open('/etc/mcollective/server.cfg', 'wb')
# Note below, that we've just used ConfigParser because it generally
# works. Below, we remove the initial 'nullsection' header
# and then change 'key = value' to 'key: value'. The global
# search and replace of '=' with ':' could be problematic though.
# this most likely needs fixing.
final_configfile.write(outputfile.getvalue().replace('[nullsection]\n','').replace(' =',':'))
final_configfile.close()
# Start mcollective
subprocess.check_call(['service', 'mcollective', 'start'])
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