{{ ansible_header | comment(decoration='// ') }}

options {
	directory "/var/cache/bind";

	// If there is a firewall between you and nameservers you want
	// to talk to, you may need to fix the firewall to allow multiple
	// ports to talk.  See http://www.kb.cert.org/vuls/id/800113

	// If your ISP provided one or more IP addresses for stable 
	// nameservers, you probably want to use them as forwarders.  
	// Uncomment the following block, and insert the addresses replacing 
	// the all-0's placeholder.

	// forwarders {
	// 	0.0.0.0;
	// };

	//========================================================================
	// If BIND logs error messages about the root key being expired,
	// you will need to update your keys.  See https://www.isc.org/bind-keys
	//========================================================================
	dnssec-validation auto;

	listen-on-v6 { any; };

	// Disable recursion on authoritative DNS server
	recursion no;

	// Hide version from clients
	version "not currently available";

{% if is_master %}
	allow-transfer {
{% for host in bind.slaves %}
{% for ip in query('ldap', 'ip', host, 'adm') %}
		{{ ip }};
{% endfor %}
{% endfor %}
	};

	also-notify {
{% for host in bind.slaves %}
{% for ip in query('ldap', 'ip', host, 'adm') %}
		{{ ip }};
{% endfor %}
{% endfor %}
	};
{% else %}
	// Disallow zone transfert by default
	allow-transfer { none; };
{% endif %}
};