FROM docker.io/library/rust:1-alpine AS chef 
RUN apk add --no-cache musl-dev
RUN cargo install cargo-chef 
WORKDIR /app

FROM chef AS planner
COPY . .
RUN cargo chef prepare  --recipe-path recipe.json

FROM chef AS builder
COPY --from=planner /app/recipe.json recipe.json
# Build dependencies - this is the caching Docker layer!
RUN cargo chef cook --release --recipe-path recipe.json
# Build application
COPY . .
RUN cargo build --release

FROM scratch AS runtime
WORKDIR /
COPY --from=builder /app/target/release/cr-web-test /
ENV ROCKET_ADDRESS 0.0.0.0
ENV ROCKET_PORT 80
ENTRYPOINT ["/cr-web-test"]