From 8b00144b2f2bf9d86e95572d4ad79c26c0b7e248 Mon Sep 17 00:00:00 2001
From: Siavash Sameni <manwe@MacBook-Air.local>
Date: Mon, 30 Mar 2026 10:56:53 +0400
Subject: [PATCH] fix: force IPv4 in Caddy build (Docker lacks IPv6 during
 build)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 warzone/deploy/docker/Dockerfile.caddy | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/warzone/deploy/docker/Dockerfile.caddy b/warzone/deploy/docker/Dockerfile.caddy
index 97d3e5a..da333f8 100644
--- a/warzone/deploy/docker/Dockerfile.caddy
+++ b/warzone/deploy/docker/Dockerfile.caddy
@@ -1,7 +1,10 @@
 # Caddy with Cloudflare DNS plugin — builds for any arch
 FROM caddy:2-builder AS builder
 
-RUN xcaddy build \
+# Force IPv4-only for Go module downloads (Docker build may lack IPv6)
+ENV GOFLAGS="-mod=mod"
+RUN echo 'precedence ::ffff:0:0/96 100' > /etc/gai.conf && \
+    xcaddy build \
     --with github.com/caddy-dns/cloudflare
 
 FROM caddy:2