ssh-key-rotation-role/tasks/generate_key.yaml

# tasks file for ssh-key-rotation
- name: Generate a new ssh Key
  command:
    ssh-keygen
      -t {{ ssh_key_algorithm }}
      -N "{{ passphrase }}" -q
      -f /home/{{ ssh_host_user }}/{{ ssh_key_path }}
      -C {{ ssh_key_comment }}
  when: inventory_hostname == play_hosts[0]
  args:
    creates: "/home/{{ ssh_host_user }}/{{ ssh_key_path }}"
  delegate_to: localhost

- name: Store then value of the ssh key path
  set_fact:
    ssh_connection_key: "{{ lookup('file', '/' + 'home' + '/' + ssh_host_user + '/' + ssh_key_path + '.pub') }}"