From 8ddb17b44b4c20f1caa755573451240a9862efe9 Mon Sep 17 00:00:00 2001
From: Sandhya Dasu <sdasu@redhat.com>
Date: Tue, 3 Mar 2026 10:04:12 -0500
Subject: [PATCH] Fine tune CoreDNS pod configuration to improve performance

Make updates to the Cloud platform CoreDNS Corefile to increase
buffersize from 512 to the default of 1232.
---
 .../common/cloud-platform-alt-dns/files/coredns-corefile.yaml   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/templates/common/cloud-platform-alt-dns/files/coredns-corefile.yaml b/templates/common/cloud-platform-alt-dns/files/coredns-corefile.yaml
index 2551b16537..5526885ce6 100644
--- a/templates/common/cloud-platform-alt-dns/files/coredns-corefile.yaml
+++ b/templates/common/cloud-platform-alt-dns/files/coredns-corefile.yaml
@@ -4,10 +4,10 @@ contents:
   inline: |
     . {
         errors
-        bufsize 512
         health :18080
         forward . {{`{{- range $upstream := .DNSUpstreams}} {{$upstream}}{{- end}}`}} {
             policy sequential
+            force_tcp
         }
         cache 30
         reload