###################
### BUILD STAGE ###
###################
FROM rust:1.47 as build_stage

# Install build dependencies
RUN rustup target add x86_64-unknown-linux-musl

# Build project
WORKDIR /app
COPY . .
RUN cargo build --release --target x86_64-unknown-linux-musl
RUN strip target/x86_64-unknown-linux-musl/release/curl_sh

########################
### PRODUCTION STAGE ###
########################
FROM scratch

WORKDIR /

CMD mkdir /scripts
CMD echo "#!/bin/sh" >> /scripts/curl.sh
CMD echo "echo Hello there!" >> /scripts/curl.sh

# Copy application binary
COPY --from=build_stage /app/target/x86_64-unknown-linux-musl/release/curl_sh curl_sh

CMD ["/curl_sh", "--user-agent", "curl", "--file", "/scripts/curl.sh"]