Ansible - Listen module

con_check.yml

---
- hosts: servera.example.com
  tasks:
    - name: serverB listen on port 8888
      listen:
        port: "8888"
      async: 5
      poll: 0
      delegate_to: serverb.example.com

    - name: connect from serverA to port 8888 of serverB
      wait_for:
        host: serverb.example.com
        port: 8888
        state: started
        delay: 0
        timeout: 5
      ignore_errors: true

listen.py

#!/usr/bin/python
DOCUMENTATION = '''
---
module: listen
short_description: create socket to listen on custom port
description: create socket to listen on custom port
'''

EXAMPLES = '''
- name: listen on port 8888
  listen:
    port: 8888
  async: 10
  poll: 0
'''
import socket
import sys
import time

from ansible.module_utils.basic import *

def main():
  fields = {
        "port": {"required": True, "type": "str"},
        }

  module = AnsibleModule(argument_spec=fields)
  response = {"socket": "listen on " + module.params['port']}

  sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

  server_address = ('', int(module.params['port']))
  sock.bind(server_address)
  sock.listen(1)

  while True:
    connection, client_address = sock.accept()
    time.sleep(5)
    connection.close()
    break

  module.exit_json(changed=False, meta=response)

if __name__ == '__main__':
  main()