ansibe hosts using master control sockets

ansible_MCT.txt

- name: Add frontend host
  hosts: localhost
  tasks:
    - name: Create master control socket
      shell:
        cmd: "sshpass -p '{{ backend_password }}' ssh -fN -M -S /tmp/{{ backend_ip }} {{ backend_username }}@{{ backend_ip }}"
        executable: /bin/bash

    - name: Add frontend
      add_host:
        name: frontend
        ansible_host: "{{ frontend_ip }}"
        groups: "frontend_setup"
        ansible_user: "{{ frontend_username }}"
        ansible_password: "{{ frontend_password }}"
        ansible_become_password: "{{ frontend_password }}"
        ansible_python_interpreter: /usr/bin/python3
        ansible_ssh_common_args: "-o StrictHostKeyChecking=no -o ProxyCommand='ssh -S /tmp/{{ backend_ip }} -W %h:%p -q {{ backend_username }}@{{ backend_ip }}'"