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131 lines
4 KiB
Python
Executable file
131 lines
4 KiB
Python
Executable file
#!/usr/bin/env python
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"""
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Vagrant external inventory script. Automatically finds the IP of the booted vagrant vm(s), and
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returns it under the host group 'vagrant'
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Example Vagrant configuration using this script:
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config.vm.provision :ansible do |ansible|
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ansible.playbook = "./provision/your_playbook.yml"
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ansible.inventory_path = "./provision/inventory/vagrant.py"
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ansible.verbose = true
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end
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"""
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# Copyright (C) 2013 Mark Mandel <mark@compoundtheory.com>
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# 2015 Igor Khomyakov <homyakov@gmail.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Thanks to the spacewalk.py inventory script for giving me the basic structure
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# of this.
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#
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import sys
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import os.path
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import subprocess
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import re
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from paramiko import SSHConfig
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from optparse import OptionParser
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from collections import defaultdict
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import json
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from ansible.module_utils._text import to_text
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from ansible.module_utils.six.moves import StringIO
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_group = 'vagrant' # a default group
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_ssh_to_ansible = [('user', 'ansible_user'),
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('hostname', 'ansible_host'),
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('identityfile', 'ansible_ssh_private_key_file'),
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('port', 'ansible_port')]
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# Options
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# ------------------------------
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parser = OptionParser(usage="%prog [options] --list | --host <machine>")
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parser.add_option('--list', default=False, dest="list", action="store_true",
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help="Produce a JSON consumable grouping of Vagrant servers for Ansible")
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parser.add_option('--host', default=None, dest="host",
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help="Generate additional host specific details for given host for Ansible")
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(options, args) = parser.parse_args()
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#
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# helper functions
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#
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# get all the ssh configs for all boxes in an array of dictionaries.
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def get_ssh_config():
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return dict((k, get_a_ssh_config(k)) for k in list_running_boxes())
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# list all the running boxes
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def list_running_boxes():
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output = to_text(subprocess.check_output(["vagrant", "status"]), errors='surrogate_or_strict').split('\n')
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boxes = []
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for line in output:
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matcher = re.search(r"([^\s]+)[\s]+running \(.+", line)
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if matcher:
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boxes.append(matcher.group(1))
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return boxes
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# get the ssh config for a single box
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def get_a_ssh_config(box_name):
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"""Gives back a map of all the machine's ssh configurations"""
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output = to_text(subprocess.check_output(["vagrant", "ssh-config", box_name]), errors='surrogate_or_strict')
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config = SSHConfig()
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config.parse(StringIO(output))
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host_config = config.lookup(box_name)
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# man 5 ssh_config:
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# > It is possible to have multiple identity files ...
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# > all these identities will be tried in sequence.
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for id in host_config['identityfile']:
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if os.path.isfile(id):
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host_config['identityfile'] = id
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return dict((v, host_config[k]) for k, v in _ssh_to_ansible)
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# List out servers that vagrant has running
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# ------------------------------
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if options.list:
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ssh_config = get_ssh_config()
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meta = defaultdict(dict)
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for host in ssh_config:
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meta['hostvars'][host] = ssh_config[host]
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print(json.dumps({_group: list(ssh_config.keys()), '_meta': meta}))
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sys.exit(0)
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# Get out the host details
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# ------------------------------
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elif options.host:
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print(json.dumps(get_a_ssh_config(options.host)))
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sys.exit(0)
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# Print out help
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# ------------------------------
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else:
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parser.print_help()
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sys.exit(0)
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