ansible/library/wait_for
Jeroen Hoekx 5ba34572d9 Add a state parameter to the wait_for module.
This takes started, stopped and restarted.

Started returns when connecting is possible.
Stopped when connecting is not possible.
Restarted first waits for connecting to be impossible and returns when it is
possible again.
2012-08-24 19:08:45 +02:00

79 lines
2.4 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# (c) 2012, Jeroen Hoekx <jeroen@hoekx.be>
#
# 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 socket
import datetime
import time
import sys
def main():
module = AnsibleModule(
argument_spec = dict(
name=dict(required=True),
timeout=dict(default=300),
port=dict(default=22),
state=dict(default='started', choices=['started', 'stopped', 'restarted']),
),
)
params = module.params
host = params['name']
timeout = int(params['timeout'])
port = int(params['port'])
state = params['state']
if state in [ 'stopped', 'restarted']:
### first wait for the host to go down
end = datetime.datetime.now() + datetime.timedelta(seconds=timeout)
while datetime.datetime.now() < end:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.settimeout(5)
try:
s.connect( (host, port) )
s.close()
time.sleep(1)
except:
break
else:
module.fail_json(msg="Timeout when waiting for %s to stop."%(host))
if state in [ 'started', 'restarted' ]:
### wait for the host to come up
end = datetime.datetime.now() + datetime.timedelta(seconds=timeout)
while datetime.datetime.now() < end:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
s.connect( (host, port) )
s.close()
break
except:
time.sleep(1)
else:
module.fail_json(msg="Timeout when waiting for %s"%(host))
module.exit_json(msg="State of %s on %s is %s."%(host, port, state))
# this is magic, see lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()