mirror docker/build-push-action@v4

test/multi-sudo.Dockerfile

@@ -0,0 +1,20 @@
+# syntax=docker/dockerfile:1
+FROM --platform=$BUILDPLATFORM golang:alpine AS build
+ARG TARGETPLATFORM
+ARG BUILDPLATFORM
+RUN echo "I am running on $BUILDPLATFORM, building for $TARGETPLATFORM" > /log
+RUN apk --update --no-cache add \
+    shadow \
+    sudo \
+  && addgroup -g 1200 buildx \
+  && adduser -u 1200 -G buildx -s /sbin/nologin -D buildx \
+  && echo 'buildx ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers \
+  && rm -rf /tmp/* /var/cache/apk/*
+
+USER buildx
+RUN sudo chown buildx. /log
+USER root
+
+FROM alpine
+COPY --from=build /log /log
+RUN ls -al /log