gistfile1.txt

FROM rust:1-alpine AS builder

RUN apk --no-cache add musl-dev g++

WORKDIR /usr/src/app
COPY . .

RUN --mount=type=cache,target=/usr/local/cargo/registry \
    --mount=type=cache,target=/usr/src/app/target \
    cargo build --release && \
    cp /usr/src/app/target/release/proxy ./proxy

FROM scratch
WORKDIR /app
COPY --link --from=builder /usr/src/app/proxy /app/proxy
CMD ["/app/proxy"]