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Diffstat (limited to 'examples/scripts')
-rwxr-xr-x | examples/scripts/cobbler_external_inventory.py | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/examples/scripts/cobbler_external_inventory.py b/examples/scripts/cobbler_external_inventory.py new file mode 100755 index 0000000000..6e2369123c --- /dev/null +++ b/examples/scripts/cobbler_external_inventory.py @@ -0,0 +1,123 @@ +#!/usr/bin/python + +""" +Cobbler external inventory script +================================= + +Ansible has a feature where instead of reading from /etc/ansible/hosts +as a text file, it can query external programs to obtain the list +of hosts, groups the hosts are in, and even variables to assign to each host. + +To use this, copy this file over /etc/ansible/hosts and chmod +x the file. +This, more or less, allows you to keep one central database containing +info about all of your managed instances. + +This script is an example of sourcing that data from Cobbler +(http://cobbler.github.com). With cobbler each --mgmt-class in cobbler +will correspond to a group in Ansible, and --ks-meta variables will be +passed down for use in templates or even in argument lines. + +NOTE: The cobbler system names will not be used. Make sure a +cobbler --dns-name is set for each cobbler system. If a system +appears with two DNS names we do not add it twice because we don't want +ansible talking to it twice. The first one found will be used. If no +--dns-name is set the system will NOT be visible to ansible. We do +not add cobbler system names because there is no requirement in cobbler +that those correspond to addresses. + +See http://ansible.github.com/api.html for more info + +Tested with Cobbler 2.0.11. +""" + +# (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/>. + +###################################################################### + + +import sys +import xmlrpclib +import shlex + +try: + import json +except: + import simplejson as json + +conn = xmlrpclib.Server("http://127.0.0.1/cobbler_api", allow_none=True) + +################################################### +# executed with no parameters, return the list of +# all groups and hosts + +if len(sys.argv) == 1: + + systems = conn.get_item_names('system') + groups = { 'ungrouped' : [] } + + for system in systems: + + data = conn.get_blended_data(None, system) + + dns_name = None + interfaces = data['interfaces'] + for (iname, ivalue) in interfaces.iteritems(): + this_dns_name = ivalue.get('dns_name', None) + if this_dns_name is not None: + dns_name = this_dns_name + + if dns_name is None: + continue + + classes = data['mgmt_classes'] + for cls in classes: + if cls not in groups: + groups[cls] = [] + # hostname is not really what we want to insert, really insert the + # first DNS name but no further DNS names + groups[cls].append(dns_name) + + print json.dumps(groups) + sys.exit(0) + +##################################################### +# executed with a hostname as a parameter, return the +# variables for that host + +if len(sys.argv) == 2: + + # look up the system record for the given DNS name + result = conn.find_system_by_dns_name(sys.argv[1]) + system = result.get('name', None) + data = {} + if system is None: + print json.dumps({}) + sys.exit(1) + data = conn.get_system_for_koan(system) + + # return the ksmeta data for that system + metadata = data['ks_meta'] + tokens = shlex.split(metadata) + results = {} + for t in tokens: + if t.find("=") != -1: + (k,v) = t.split("=",1) + results[k]=v + print json.dumps(results) + sys.exit(0) + |