content: FROM rust:1.74-alpine3.17 AS chef
  USER root
  # remove the line below when switching to >=rust:1.70.0. sparse mode is planned to be the default in Rust 1.70.0
  ENV CARGO_REGISTRIES_CRATES_IO_PROTOCOL=sparse
  RUN apk add --no-cache musl-dev & cargo install cargo-chef
  WORKDIR /microservice-project
  
  FROM chef AS planner
  COPY . .
  RUN cargo chef prepare --recipe-path recipe.json
  
  FROM chef AS builder
  COPY --from=planner /microservice-project/recipe.json recipe.json
  # Build dependencies - this is the caching Docker layer!
  RUN cargo chef cook --release --recipe-path recipe.json
  # Build application
  RUN apk add --no-cache protoc
  COPY . .
  RUN cargo build --release --bin health-check
  
  # We do not need the Rust toolchain to run the binary!
  FROM debian:buster-slim AS runtime
  WORKDIR /microservice-project
  COPY --from=builder /microservice-project/target/release/health-check /usr/local/bin
  ENV AUTH_SERVICE_HOST_NAME=auth
  ENTRYPOINT ["/usr/local/bin/health-check"]