From 3c5678f8a86955e92e5d8414c96cbf56c65dcfc2 Mon Sep 17 00:00:00 2001
From: ahmza <hamza@ahmza.com>
Date: Mon, 3 Aug 2026 15:40:22 +0000
Subject: [PATCH] Run Hugo natively in build stage to skip QEMU emulation

Pin the build stage to $BUILDPLATFORM so Hugo runs once on the native
arch instead of once per target arch under QEMU. Hugo output is static
HTML and identical across arches, so the emulated arm64 Hugo run (~59s
vs ~12s native) plus emulated base-image extraction were pure waste.
The runtime stage stays on TARGETPLATFORM, so multi-arch amd64+arm64
images are still produced.
---
 Dockerfile | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Dockerfile b/Dockerfile
index 62c0cea..250d082 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,9 @@
-FROM ghcr.io/hugomods/hugo:0.157.0 AS build
+# syntax=docker/dockerfile:1
+# Pin the build stage to the native build platform so Hugo runs once (never
+# under QEMU emulation). Hugo output is static HTML — identical across arches —
+# so there's no reason to run it per target arch. The runtime stage below stays
+# on TARGETPLATFORM, so multi-arch (amd64 + arm64) runtime images are preserved.
+FROM --platform=$BUILDPLATFORM ghcr.io/hugomods/hugo:0.157.0 AS build
 WORKDIR /tmp/hugo
 COPY . .
 RUN hugo --gc --minify