Dockerfile

# Build stage
FROM rust:1.72.1-bookworm AS cargo-build

RUN apt-get update
RUN apt-get install -y libgcc-12-dev libc6-dev pkg-config libssl-dev

WORKDIR /src/websocat
ENV RUSTFLAGS='-Ctarget-feature=-crt-static'

COPY Cargo.toml Cargo.toml
# ARG CARGO_OPTS="--features=workaround1,seqpacket,prometheus_peer,prometheus/process,crypto_peer"
ARG CARGO_OPTS="--features=ssl,workaround1,seqpacket,unix_stdio,prometheus_peer,prometheus/process,crypto_peer"

RUN mkdir src/ &&\
    echo "fn main() {println!(\"if you see this, the build broke\")}" > src/main.rs && \
    cargo build --release $CARGO_OPTS && \
    rm -f target/release/deps/websocat*

COPY src src
RUN cargo build --release $CARGO_OPTS && \
    strip target/release/websocat

# Final stage
FROM debian:bookworm

RUN apt-get update
RUN apt-get install -y libssl3
RUN apt-get clean && \
    rm -rf /var/lib/apt/lists/*

WORKDIR /
COPY --from=cargo-build /src/websocat/target/release/websocat /usr/local/bin/

ENTRYPOINT ["/usr/local/bin/websocat"]