mirror docker/build-push-action@v4

test/go/Dockerfile

@@ -0,0 +1,19 @@
+# syntax=docker/dockerfile:1
+
+FROM golang:alpine AS base
+ENV CGO_ENABLED=0
+RUN apk add --no-cache file git
+WORKDIR /src
+
+FROM base AS build
+RUN --mount=type=bind,target=/src \
+    --mount=type=cache,target=/root/.cache/go-build \
+    go build -ldflags "-s -w" -o /usr/bin/app .
+
+FROM scratch AS binary
+COPY --from=build /usr/bin/app /bin/app
+
+FROM alpine AS image
+COPY --from=build /usr/bin/app /bin/app
+EXPOSE 8080
+ENTRYPOINT ["/bin/app"]