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Dockerfile
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# Build Stage
FROM rust:1.68.0 as builder
RUN USER=root cargo new --bin axum-railway-template
WORKDIR ./axum-railway-template
ENV CARGO_REGISTRIES_CRATES_IO_PROTOCOL=sparse
COPY ./Cargo.toml ./Cargo.toml
# Build empty app with downloaded dependencies to produce a stable image layer for next build
RUN cargo build --release
# Build web app with own code
RUN rm src/*.rs
ADD . ./
RUN rm ./target/release/deps/axum_railway_template*
RUN cargo build --release
FROM debian:buster-slim
ARG APP=/usr/src/app
RUN apt-get update \
&& apt-get install -y ca-certificates tzdata \
&& rm -rf /var/lib/apt/lists/*
ENV TZ=Etc/UTC \
APP_USER=appuser
RUN groupadd $APP_USER \
&& useradd -g $APP_USER $APP_USER \
&& mkdir -p ${APP}
COPY --from=builder /axum-railway-template/target/release/axum-railway-template ${APP}/axum-railway-template
RUN chown -R $APP_USER:$APP_USER ${APP}
USER $APP_USER
WORKDIR ${APP}
EXPOSE 3000
ENV PORT 3000
CMD ["./axum-railway-template"]