homeserver/roles/mgrote_munin_server/templates/munin.conf

includedir /etc/munin/munin-conf.d

# Munin hosts.
{% for host in munin_hosts %}
[{{ host.name }}]
{% if host.address is defined %}
    address {{ host.address }}
{% endif %}
{% if host.extra is defined %}
{% for extra in host.extra %}
    {{ extra }}
{% endfor %}
{% endif %}

{% endfor %}