ansible-role-ssh_host_key/templates/ssh_host_key.j2

{% if hostvars[item].ssh_ip is defined %}
{{ item }},{{ ansible_host }},{{ hostvars[item].ssh_ip }} ssh-ed25519 {{ hostvars[item].ssh_host_key_ed25519_public }}
{% else %}
{{ item }},{{ ansible_host }} ssh-ed25519 {{ hostvars[item].ssh_host_key_ed25519_public }}
{% endif %}