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#!/usr/bin/env python
"""
Vagrant external inventory script. Automatically finds the IP of the booted vagrant vm(s), and
returns it under the host group 'vagrant'
Example Vagrant configuration using this script:
config.vm.provision :ansible do |ansible|
ansible.playbook = "./provision/your_playbook.yml"
ansible.inventory_file = "./provision/inventory/vagrant.py"
ansible.verbose = true
end
"""
# Copyright (C) 2013 Mark Mandel <mark@compoundtheory.com>
# 2015 Igor Khomyakov <homyakov@gmail.com>
#
# This program 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.
#
# 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/>.
#
# Thanks to the spacewalk.py inventory script for giving me the basic structure
# of this.
#
import sys
import os.path
import subprocess
import re
from paramiko import SSHConfig
from cStringIO import StringIO
from optparse import OptionParser
from collections import defaultdict
try:
import json
except:
import simplejson as json
_group = 'vagrant' # a default group
_ssh_to_ansible = [('user', 'ansible_ssh_user'),
('hostname', 'ansible_ssh_host'),
('identityfile', 'ansible_ssh_private_key_file'),
('port', 'ansible_ssh_port')]
# Options
# ------------------------------
parser = OptionParser(usage="%prog [options] --list | --host <machine>")
parser.add_option('--list', default=False, dest="list", action="store_true",
help="Produce a JSON consumable grouping of Vagrant servers for Ansible")
parser.add_option('--host', default=None, dest="host",
help="Generate additional host specific details for given host for Ansible")
(options, args) = parser.parse_args()
#
# helper functions
#
# get all the ssh configs for all boxes in an array of dictionaries.
def get_ssh_config():
return dict((k, get_a_ssh_config(k)) for k in list_running_boxes())
# list all the running boxes
def list_running_boxes():
output = subprocess.check_output(["vagrant", "status"]).split('\n')
boxes = []
for line in output:
matcher = re.search(r"([^\s]+)[\s]+running \(.+", line)
if matcher:
boxes.append(matcher.group(1))
return boxes
# get the ssh config for a single box
def get_a_ssh_config(box_name):
"""Gives back a map of all the machine's ssh configurations"""
output = subprocess.check_output(["vagrant", "ssh-config", box_name])
config = SSHConfig()
config.parse(StringIO(output))
host_config = config.lookup(box_name)
# man 5 ssh_config:
# > It is possible to have multiple identity files ...
# > all these identities will be tried in sequence.
for id in host_config['identityfile']:
if os.path.isfile(id):
host_config['identityfile'] = id
return dict((v, host_config[k]) for k, v in _ssh_to_ansible)
# List out servers that vagrant has running
# ------------------------------
if options.list:
ssh_config = get_ssh_config()
meta = defaultdict(dict)
for host in ssh_config:
meta['hostvars'][host] = ssh_config[host]
print(json.dumps({_group: list(ssh_config.keys()), '_meta': meta}))
sys.exit(0)
# Get out the host details
# ------------------------------
elif options.host:
print(json.dumps(get_a_ssh_config(options.host)))
sys.exit(0)
# Print out help
# ------------------------------
else:
parser.print_help()
sys.exit(0)
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