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ansible/library/setup

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#!/usr/bin/python
# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible 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 Ansible. If not, see <http://www.gnu.org/licenses/>.
DEFAULT_ANSIBLE_SETUP = "/etc/ansible/setup"
import sys
import os
import shlex
import subprocess
try:
import json
except ImportError:
import simplejson as json
# load config & template variables
if len(sys.argv) == 1:
sys.exit(1)
argfile = sys.argv[1]
if not os.path.exists(argfile):
sys.exit(1)
input_data = shlex.split(open(argfile, 'r').read())
# turn urlencoded k=v string (space delimited) to regular k=v directionary
splitted = [x.split('=',1) for x in input_data ]
splitted = [ (x[0], x[1].replace("~~~"," ")) for x in splitted ]
new_options = dict(splitted)
ansible_file = new_options.get('metadata', DEFAULT_ANSIBLE_SETUP)
ansible_dir = os.path.dirname(ansible_file)
# create the config dir if it doesn't exist
if not os.path.exists(ansible_dir):
os.makedirs(ansible_dir)
changed = False
md5sum = None
if not os.path.exists(ansible_file):
changed = True
else:
md5sum = os.popen("md5sum %s" % ansible_file).read().split()[0]
# if facter is installed, and we can use --json because
# ruby-json is ALSO installed, include facter data in the JSON
if os.path.exists("/usr/bin/facter"):
cmd = subprocess.Popen("/usr/bin/facter --json", shell=True,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = cmd.communicate()
facter = True
try:
facter_ds = json.loads(out)
except:
facter = False
if facter:
for (k,v) in facter_ds.items():
new_options["facter_%s" % k] = v
# ditto for ohai, but just top level string keys
# because it contains a lot of nested stuff we can't use for
# templating w/o making a nicer key for it (TODO)
if os.path.exists("/usr/bin/ohai"):
cmd = subprocess.Popen("/usr/bin/ohai", shell=True,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = cmd.communicate()
ohai = True
try:
ohai_ds = json.loads(out)
except:
ohai = False
if ohai:
for (k,v) in ohai_ds.items():
if type(v) == str or type(v) == unicode:
k2 = "ohai_%s" % k
new_options[k2] = v
# write the template/settings file using
# instructions from server
f = open(ansible_file, "w+")
reformat = json.dumps(new_options, sort_keys=True, indent=4)
f.write(reformat)
f.close()
md5sum2 = os.popen("md5sum %s" % ansible_file).read().split()[0]
if md5sum != md5sum2:
changed = True
new_options['written'] = ansible_file
new_options['changed'] = changed
new_options['md5sum'] = md5sum2
print json.dumps(new_options)