From 2c80551fdc1ac409eb11dc8dd9e7fe90fb04d90c Mon Sep 17 00:00:00 2001
From: Miek Gieben <miek@miek.nl>
Date: Wed, 1 Nov 2017 10:11:34 +0000
Subject: plugin/{kubernetes/etcd}: dynamic SOA (#1188)

Add a dynamic SOA record (at least the serial and minttl). This create
another interface that should be implemented by the backends.

For now default to returning epoch in as a uint32 (no change from
before).

Lower the minTTL returned to 30s (from 60s)
---
 plugin/backend.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'plugin/backend.go')

diff --git a/plugin/backend.go b/plugin/backend.go
index b520ce390..7b5b2f467 100644
--- a/plugin/backend.go
+++ b/plugin/backend.go
@@ -26,6 +26,17 @@ type ServiceBackend interface {
 
 	// IsNameError return true if err indicated a record not found condition
 	IsNameError(err error) bool
+
+	Transferer
+}
+
+// Transferer defines an interface for backends that provide AXFR of all records.
+type Transferer interface {
+	// Serial returns a SOA serial number to construct a SOA record.
+	Serial(state request.Request) uint32
+
+	// MinTTL returns the minimum TTL to be used in the SOA record.
+	MinTTL(state request.Request) uint32
 }
 
 // Options are extra options that can be specified for a lookup.
-- 
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