.github/workflows/buildkit-5561.yml

@@ -0,0 +1,16 @@
+name: buildkit-5561
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+on:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4

test/multi-sudo.Dockerfile

@@ -1,6 +1,5 @@
 # syntax=docker/dockerfile:1
-
+FROM --platform=$BUILDPLATFORM golang:alpine AS build
-FROM --platform=$BUILDPLATFORM alpine AS build
 ARG TARGETPLATFORM
 ARG BUILDPLATFORM
 RUN echo "I am running on $BUILDPLATFORM, building for $TARGETPLATFORM" > /log
@@ -13,7 +12,7 @@ RUN apk --update --no-cache add \
   && rm -rf /tmp/* /var/cache/apk/*
 
 USER buildx
-RUN sudo chown buildx: /log
+RUN sudo chown buildx. /log
 USER root
 
 FROM alpine