66 lines
3.0 KiB
Docker
66 lines
3.0 KiB
Docker
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# =============================================================================
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# Alpine-based builder for musl-linked FFI shared library.
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#
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# Usage:
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# docker build -f docker/Dockerfile.musl-ffi \
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# --output type=local,dest=./dist .
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#
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# Produces libkreuzberg_ffi.so at dist/libkreuzberg_ffi.so
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# =============================================================================
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FROM alpine:3.21 AS builder
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ARG RUST_TOOLCHAIN=nightly-2026-03-10
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WORKDIR /build
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# Install build dependencies — Alpine's g++ and libstdc++ are musl-native,
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# so tesseract C++ compilation works without glibc conflicts.
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RUN apk add --no-cache \
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curl gcc g++ musl-dev cmake make pkgconf \
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openssl-dev openssl-libs-static \
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perl linux-headers git file && \
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apk add --no-cache onnxruntime-dev \
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--repository=https://dl-cdn.alpinelinux.org/alpine/edge/community \
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--repository=https://dl-cdn.alpinelinux.org/alpine/edge/main
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# Install Rust via rustup (Alpine's packaged Rust may be too old / not nightly)
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RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
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| sh -s -- -y --default-toolchain "${RUST_TOOLCHAIN}" --component rust-src && \
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echo "Rust host: $(~/.cargo/bin/rustc -vV | grep host)" && \
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echo "Default target: $(~/.cargo/bin/rustc --print cfg | grep target)"
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ENV PATH="/root/.cargo/bin:${PATH}"
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# Point ort-sys to Alpine's system ORT library instead of downloading prebuilt binaries.
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ENV ORT_LIB_LOCATION=/usr/lib
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ENV ORT_PREFER_DYNAMIC_LINK=1
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ENV ORT_SKIP_DOWNLOAD=1
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ENV ORT_STRATEGY=system
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# Allow cdylib output on musl targets (default is +crt-static which blocks shared libs)
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ENV RUSTFLAGS="-C target-feature=-crt-static"
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# Copy workspace manifests and crates
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COPY Cargo.toml Cargo.lock ./
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COPY crates/kreuzberg/ crates/kreuzberg/
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COPY crates/kreuzberg-ffi/ crates/kreuzberg-ffi/
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COPY crates/kreuzberg-tesseract/ crates/kreuzberg-tesseract/
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COPY crates/kreuzberg-paddle-ocr/ crates/kreuzberg-paddle-ocr/
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# Remove workspace members that aren't included
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RUN sed -i '/kreuzberg-py/d; /kreuzberg_rb/d; /kreuzberg-node/d; /kreuzberg-cli/d; /kreuzberg-php/d; /kreuzberg_rustler/d; /kreuzberg_nif/d; /packages\/dart\/rust/d; /packages\/swift\/rust/d; /"crates\/kreuzberg-wasm"/d; /^\[profile\.release\.package\.kreuzberg-wasm\]$/,$d; /benchmark-harness/d; /e2e-generator/d; /snippet-runner/d; /e2e\/rust/d' Cargo.toml
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# Build the FFI shared library
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RUN cargo build --release --package kreuzberg-ffi && \
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cp target/release/libkreuzberg_ffi.so /build/libkreuzberg_ffi.so && \
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strip /build/libkreuzberg_ffi.so
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# Verify the library
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RUN file /build/libkreuzberg_ffi.so && \
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echo "=== Dynamic dependencies ===" && \
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readelf -d /build/libkreuzberg_ffi.so 2>/dev/null | grep NEEDED || echo "No dynamic dependencies (fully static)"
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# =============================================================================
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# Output stage — just the shared library
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# =============================================================================
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FROM scratch
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COPY --from=builder /build/libkreuzberg_ffi.so /libkreuzberg_ffi.so
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