---
- hosts: all
  tasks:
    - name: delete /home/mg/.ssh/authorized_keys
      become: yes
      ansible.builtin.file:
        name: /home/mg/.ssh/authorized_keys
        state: absent
    - name: delete /home/ansible-user/.ssh/authorized_keys
      become: yes
      ansible.builtin.file:
        name: /home/ansible-user/.ssh/authorized_keys
        state: absent
    - name: prohibit ssh login with password
      become: yes
      ansible.builtin.lineinfile:
        path: /etc/ssh/sshd_config
        regexp: 'PasswordAuthentication no'
        line: 'PasswordAuthentication yes'
        state: present
    - name: restart_sshd
      become: yes
      systemd:
        name: sshd
        enabled: yes
        state: restarted