Do not generate unnecessary nameserver A records

roles/float-infra-dns/templates/dns/infra.yml

@@ -42,6 +42,8 @@
 {% endif %}
 {% endfor %}
 
+{% if d == mx_ns_domain %}
+{# Only generate the nameservers' A records on the chosen zone #}
 {% for h in services['dns'].hosts | sort %}
 {% set host_ip4 = hostvars[h]['public_ips'] | ansible.netcommon.ipv4 %}
 {% set host_ip6 = hostvars[h]['public_ips'] | ansible.netcommon.ipv6 %}
@@ -55,6 +57,8 @@
 {% endfor %}
 {% endif %}
 
+{% endif %}
+
 {% for service_name, s in services|dictsort %}
 {# Iterate over the HTTP endpoints #}
 {% for pe in s.get('public_endpoints', []) if pe.get('name') and not pe.get('skip_dns', False) %}