mirror of
https://github.com/ansible-collections/community.general.git
synced 2024-09-14 20:13:21 +02:00
71 lines
2.5 KiB
Python
71 lines
2.5 KiB
Python
|
#!/usr/bin/env python
|
||
|
|
#
|
||
|
|
# (c) 2015-16 Florian Haas, hastexo Professional Services GmbH
|
||
|
|
# <florian@hastexo.com>
|
||
|
|
# Based in part on:
|
||
|
|
# libvirt_lxc.py, (c) 2013, Michael Scherer <misc@zarb.org>
|
||
|
|
#
|
||
|
|
# 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/>.
|
||
|
|
"""
|
||
|
|
Ansible inventory script for LXC containers. Requires Python
|
||
|
|
bindings for LXC API.
|
||
|
|
|
||
|
|
In LXC, containers can be grouped by setting the lxc.group option,
|
||
|
|
which may be found more than once in a container's
|
||
|
|
configuration. So, we enumerate all containers, fetch their list
|
||
|
|
of groups, and then build the dictionary in the way Ansible expects
|
||
|
|
it.
|
||
|
|
"""
|
||
|
|
from __future__ import print_function
|
||
|
|
|
||
|
|
import sys
|
||
|
|
import lxc
|
||
|
|
import json
|
||
|
|
|
||
|
|
|
||
|
|
def build_dict():
|
||
|
|
"""Returns a dictionary keyed to the defined LXC groups. All
|
||
|
|
containers, including the ones not in any group, are included in the
|
||
|
|
"all" group."""
|
||
|
|
# Enumerate all containers, and list the groups they are in. Also,
|
||
|
|
# implicitly add every container to the 'all' group.
|
||
|
|
containers = dict([(c,
|
||
|
|
['all'] +
|
||
|
|
(lxc.Container(c).get_config_item('lxc.group') or []))
|
||
|
|
for c in lxc.list_containers()])
|
||
|
|
|
||
|
|
# Extract the groups, flatten the list, and remove duplicates
|
||
|
|
groups = set(sum([g for g in containers.values()], []))
|
||
|
|
|
||
|
|
# Create a dictionary for each group (including the 'all' group
|
||
|
|
return dict([(g, {'hosts': [k for k, v in containers.items() if g in v],
|
||
|
|
'vars': {'ansible_connection': 'lxc'}}) for g in groups])
|
||
|
|
|
||
|
|
|
||
|
|
def main(argv):
|
||
|
|
"""Returns a JSON dictionary as expected by Ansible"""
|
||
|
|
result = build_dict()
|
||
|
|
if len(argv) == 2 and argv[1] == '--list':
|
||
|
|
json.dump(result, sys.stdout)
|
||
|
|
elif len(argv) == 3 and argv[1] == '--host':
|
||
|
|
json.dump({'ansible_connection': 'lxc'}, sys.stdout)
|
||
|
|
else:
|
||
|
|
print("Need an argument, either --list or --host <host>", file=sys.stderr)
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
main(sys.argv)
|