3794f4cf36
Use printf instead of heredoc for cargo config — heredoc inside a conditional RUN block confuses Docker's parser (fi becomes an unknown instruction). The config is always written; unused linker entries are harmless on native builds.
78 lines
3 KiB
Text
78 lines
3 KiB
Text
# syntax=docker/dockerfile:1
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# ── Build stage ───────────────────────────────────────────────────────────────
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# Run the compiler on the *build* host; cross-compile to target when needed.
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FROM --platform=$BUILDPLATFORM rust:1.86-slim-bookworm AS builder
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ARG BUILDPLATFORM
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ARG TARGETPLATFORM
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ARG TARGETARCH
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ARG TARGETVARIANT
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# Install cross-compilation toolchains only when actually cross-compiling.
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RUN apt-get update && apt-get install -y pkg-config && \
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if [ "${BUILDPLATFORM}" != "${TARGETPLATFORM}" ]; then \
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case "${TARGETARCH}:${TARGETVARIANT}" in \
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"arm64:") apt-get install -y gcc-aarch64-linux-gnu ;; \
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"arm:v7") apt-get install -y gcc-arm-linux-gnueabihf ;; \
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"arm:v6") apt-get install -y gcc-arm-linux-gnueabi ;; \
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esac; \
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fi && \
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rm -rf /var/lib/apt/lists/*
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# Map TARGETARCH + TARGETVARIANT → Rust target triple, then install it.
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RUN case "${TARGETARCH}:${TARGETVARIANT}" in \
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"amd64:") echo x86_64-unknown-linux-gnu ;; \
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"arm64:") echo aarch64-unknown-linux-gnu ;; \
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"arm:v7") echo armv7-unknown-linux-gnueabihf ;; \
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"arm:v6") echo arm-unknown-linux-gnueabi ;; \
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*) echo x86_64-unknown-linux-gnu ;; \
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esac > /rust_target && \
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rustup target add "$(cat /rust_target)"
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# Tell Cargo which cross-linker to use (ignored on native builds).
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RUN mkdir -p /root/.cargo && printf '\
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[target.aarch64-unknown-linux-gnu]\n\
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linker = "aarch64-linux-gnu-gcc"\n\
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\n\
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[target.armv7-unknown-linux-gnueabihf]\n\
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linker = "arm-linux-gnueabihf-gcc"\n\
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\n\
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[target.arm-unknown-linux-gnueabi]\n\
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linker = "arm-linux-gnueabi-gcc"\n' >> /root/.cargo/config.toml
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WORKDIR /build
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# Cache dependencies separately from source.
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COPY Cargo.toml Cargo.lock* ./
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COPY server/Cargo.toml ./server/
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RUN mkdir -p server/src && echo 'fn main(){}' > server/src/main.rs
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RUN TARGET=$(cat /rust_target) && \
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cargo build --release --target "$TARGET" -p hiy-server 2>/dev/null || true
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RUN rm -f server/src/main.rs
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# Build actual source.
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COPY server/src ./server/src
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RUN TARGET=$(cat /rust_target) && \
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touch server/src/main.rs && \
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cargo build --release --target "$TARGET" -p hiy-server
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# Normalise binary location so the runtime stage doesn't need to know the target.
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RUN cp /build/target/"$(cat /rust_target)"/release/hiy-server /usr/local/bin/hiy-server
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# ── Runtime stage ─────────────────────────────────────────────────────────────
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FROM debian:bookworm-slim
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RUN apt-get update && apt-get install -y \
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ca-certificates \
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git \
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curl \
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bash \
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python3 \
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docker.io \
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&& rm -rf /var/lib/apt/lists/*
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COPY --from=builder /usr/local/bin/hiy-server /usr/local/bin/hiy-server
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WORKDIR /app
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CMD ["hiy-server"]
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