checkIfPortIsOpen.yml

---

# Executes a Python script which is embedded in YAML and
# check if the given port of the given host is open in the firewall.
#
# To pass the parameters host and port define in the AAP surveys
# with the host as type text and the port as type integer.
# Or execute it with
# ansible-playbook checkIfPortIsOpen.yml -e in_host=127.0.0.1 -e in_port=443
#
# @author Stefan Schnell <mail@stefan-schnell.de>
# @license MIT
# @version 0.2.0

- name: Executes inline Python script and check if port at host is open
  hosts: localhost
  gather_facts: false

  vars:

    in_host: "127.0.0.1"
    in_port: 443

    python_code: |
      #!/usr/bin/python
      # -*- coding: utf-8 -*-
      
      import socket
      
      def main():
      
          host: str = "{{ in_host }}"
          port: int = {{ in_port }}
      
          try:
              sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
              result = sock.connect_ex((host, port))
              if result == 0:
                  print("Port is open")
              else:
                  print("Port is not open")
          except Exception as err:
              print("Error:", repr(err))
          finally:
              sock.close()
      
      if __name__ == "__main__":
          main()

  tasks:

    - name: Create Python script
      ansible.builtin.copy:
        content: "{{ python_code }}"
        dest: /tmp/checkPort.py
        follow: true
        mode: "0777"

    - name: Execute Python script
      ansible.builtin.command:
        cmd: /usr/bin/python3 /tmp/checkPort.py
      changed_when: result.rc != 0
      register: result

    - name: Print result of the Python script
      ansible.builtin.debug:
        msg: "{{ result.stdout_lines }}"

    - name: Delete Python script
      ansible.builtin.file:
        path: /tmp/checkPort.py
        state: absent