ssh disconnect does not work if ansible_user is not passed

Summary

ssh disconnect does not work if ansible_user is not passed

since we are using local action (part of disconnect.yml action):

- name: "disconnect the local SSH connection to the host"
  local_action:
    module: >-
      shell
      ssh
      -O stop
      -S "{{ ssh_control_path }}"
      "{{ _ssh_host }}"
  register: "_result_ssh_stop"
  when: "_result_ssh_check.stat.exists"
  failed_when:
    - "_result_ssh_stop | failed"
    - "'No such file or directory' in _result_ssh_stop.stderr"

If host does not have ansible_user set, ansible will use ansible_user of localhost which default to currently logged in user.

Steps to reproduce

• use ssh connection without specifying ansible_user
• call disconnect action of ssh role

Expected behavior

• host should disconnect

Actual behavior

• host does not disconnect

Relevant logs and/or screenshots

N/A

Possible fixes

modify:

_ssh_port: "{{ ansible_port | default('None') }}"
_ssh_user: "{{ ansible_user | default('None') }}"

to:

_ssh_port: "{{ hostvars[inventory_hostname].ansible_port | default('None') }}"
_ssh_user: "{{ hostvars[inventory_hostname].ansible_user | default('None') }}"