Ansible ssh_known_hosts template

ansible_ssh_known_hosts

{% for host in groups['all'] %}
{% set hostnames_ips = hostvars[host]['ansible_fqdn'] + ',' + hostvars[host]['ansible_hostname'] + ',' + hostvars[host]['ansible_all_ipv4_addresses']|join(',') %}
{% if hostvars[host]['ansible_ssh_host_key_rsa_public'] %}
{{ hostnames_ips }} ssh-rsa {{ hostvars[host]['ansible_ssh_host_key_rsa_public'] }}
{% endif %}
{% if hostvars[host]['ansible_ssh_host_key_dsa_public'] %}
{{ hostname_ips }} ssh-dsa {{ hostvars[host]['ansible_ssh_host_key_dsa_public'] }}
{% endif %}
{% endfor %}