From 31b3aca8f94de562c34e2e36112c24ed3f132c54 Mon Sep 17 00:00:00 2001
From: Noste <83548733+Noooste@users.noreply.github.com>
Date: Sun, 21 Dec 2025 23:48:03 +0100
Subject: [PATCH] feat: enable multi-platform builds in Dockerfile

Signed-off-by: Noste <83548733+Noooste@users.noreply.github.com>
---
 Dockerfile | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 06e5593..3289609 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:25-alpine3.22 AS frontend-builder
+FROM --platform=$BUILDPLATFORM node:25-alpine3.22 AS frontend-builder
 
 WORKDIR /app/frontend
 
@@ -11,7 +11,10 @@ COPY frontend/ .
 
 RUN npm run build
 
-FROM golang:1.25.4-alpine3.22 AS backend-builder
+FROM --platform=$BUILDPLATFORM golang:1.25.4-alpine3.22 AS backend-builder
+
+ARG TARGETOS
+ARG TARGETARCH
 
 WORKDIR /app
 
@@ -31,7 +34,7 @@ RUN --mount=type=cache,target=/root/.cache/go-build \
 
 RUN --mount=type=cache,target=/go/pkg/mod \
     --mount=type=cache,target=/root/.cache/go-build \
-    CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o garage-ui .
+    CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -a -installsuffix cgo -o garage-ui .
 
 FROM alpine:3.22