BIND9 Integration

How Bindy integrates with BIND9 DNS server.

Configuration Generation

Bindy generates BIND9 configuration from Bind9Instance specs:

named.conf

options {
    directory "/var/lib/bind";
    recursion no;
    allow-query { 0.0.0.0/0; };
};

zone "example.com" {
    type master;
    file "/var/lib/bind/zones/example.com.zone";
};

Zone Files

$TTL 3600
@   IN  SOA ns1.example.com. admin.example.com. (
        2024010101  ; serial
        3600        ; refresh
        600         ; retry
        604800      ; expire
        86400 )     ; negative TTL
    IN  NS  ns1.example.com.
www IN  A   192.0.2.1

Zone File Management

Operations:

• Create new zones
• Add/update records
• Increment serial numbers
• Reload BIND9 configuration

BIND9 Lifecycle

1. ConfigMap - Contains configuration files
2. Volume Mount - Mount ConfigMap to BIND9 pod
3. Init - BIND9 starts with configuration
4. Reload - rndc reload when configuration changes

Future Enhancements

• Dynamic DNS updates (nsupdate)
• TSIG key management
• Zone transfer monitoring
• Query statistics collection