playbook.yml

---
- gather_facts: false
  hosts: localhost
  tasks:
    - command:
        cmd: "docker-compose up -d"

    - add_host:
        name: web1
        ansible_connection: httpapi
        ansible_host: 127.0.0.1
        ansible_network_os: testing
        ansible_httpapi_port: 8001

    - add_host:
        name: web2
        ansible_connection: httpapi
        ansible_host: 127.0.0.1
        ansible_network_os: testing
        ansible_httpapi_port: 8002

    - add_host:
        name: web3
        ansible_connection: httpapi
        ansible_host: 127.0.0.1
        ansible_network_os: testing
        ansible_httpapi_port: 8003

- gather_facts: false
  hosts: all
  collections:
    - mynamespace.mycollection
  tasks:
    - debug:
        msg: "{{ ansible_httpapi_port }}"

    - my_module:
      register: output_value
    
    - debug:
        msg: "{{ output_value }}"