FROM alpine:3.19 AS builder RUN echo "Building..." > /build.log FROM alpine:3.19 LABEL org.opencontainers.image.title="stack-test-demo-multi" LABEL org.opencontainers.image.version="1.0.0" COPY --from=builder /build.log /build.log RUN echo "Stack.Gallery Multi-Layer Demo" > /README.txt CMD ["cat", "/README.txt"]