kubespray/roles/bastion-ssh-config/tasks/main.yml

---
- set_fact:
    bastion_ip: "{{ hostvars[groups['bastion'][0]]['ansible_host'] | d(hostvars[groups['bastion'][0]]['ansible_ssh_host']) }}"
  delegate_to: localhost

# As we are actually running on localhost, the ansible_ssh_user is your local user when you try to use it directly
# To figure out the real ssh user, we delegate this task to the bastion and store the ansible_user in real_user
- set_fact:
    real_user: "{{ ansible_user }}"

- name: create ssh bastion conf
  become: false
  delegate_to: localhost
  template:
    src: ssh-bastion.conf
    dest: "{{ playbook_dir }}/ssh-bastion.conf"