dnscontrol/documentation/functions/global/DEFAULTS.md

name	parameters	parameter_types
DEFAULTS	modifiers...	modifiers... RecordModifier[]

DEFAULTS allows you to declare a set of default arguments to apply to all subsequent domains. Subsequent calls to D will have these arguments passed as if they were the first modifiers in the argument list.

Example

We want to create backup zone files for all domains, but not actually register them. Also create a DefaultTTL. The domain example.com will have the defaults set.

var COMMON = NewDnsProvider("foo");
DEFAULTS(
  DnsProvider(COMMON, 0),
  DefaultTTL('1d')
);

D("example.com",
  REGISTRAR,
  DnsProvider("R53"),
  A("@","1.2.3.4")
);

If you want to clear the defaults, you can do the following. The domain example2.com will not have the defaults set.

DEFAULTS();

D("example2.com",
  REGISTRAR,
  DnsProvider("R53"),
  A("@","1.2.3.4")
);