vh
99710c26a5
Build succeeded after the libcuda.so symlink fix, but the first /v1/tts request returned HTTP 500 with: s2 binary failed (rc=127): /usr/local/bin/s2: error while loading shared libraries: libgomp.so.1: cannot open shared object file CMake auto-enabled OpenMP during the build (gcc's -fopenmp flag), so the s2 binary dynamically links libgomp.so.1. The build-stage devel image had it; the slim cuda:runtime base doesn't ship it by default. Adding libgomp1 to the runtime image's apt install resolves it.
82 lines
3.6 KiB
Docker
82 lines
3.6 KiB
Docker
# fish-cpp — s2.cpp (pure C++/GGML inference for Fish s2-pro GGUFs) +
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# tiny FastAPI shim exposing Fish's /v1/tts contract.
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#
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# Two-stage build:
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# 1. builder — compiles s2.cpp with CUDA backend
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# 2. runtime — slim image with the s2 binary + Python shim
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#
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# The s2.cpp binary is the actual inference engine; the Python shim is
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# just an HTTP-to-CLI bridge so this stack drops into the same fleet
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# pattern as the other TTS (POST /v1/tts, Fish-shaped request body).
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# ── Stage 1: build s2.cpp with CUDA ────────────────────────────────────
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FROM nvidia/cuda:12.6.0-devel-ubuntu24.04 AS builder
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ARG S2_CPP_SHA=e48ce8e02d8335bd9a0ba94679f605724b31d123
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ENV DEBIAN_FRONTEND=noninteractive
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RUN apt-get update && apt-get install -y --no-install-recommends \
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git ca-certificates cmake ninja-build build-essential pkg-config \
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&& rm -rf /var/lib/apt/lists/*
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WORKDIR /src
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RUN git clone --recurse-submodules https://github.com/rodrigomatta/s2.cpp.git \
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&& cd s2.cpp \
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&& git checkout ${S2_CPP_SHA} \
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&& git submodule update --init --recursive
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WORKDIR /src/s2.cpp
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# CUDA Driver API symbols (cuMemSetAccess, cuDeviceGet, etc.) live in
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# libcuda.so which the NVIDIA driver provides at RUNTIME. Build-time
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# uses the stubs library at /usr/local/cuda/lib64/stubs/. CMake's
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# find_library doesn't reliably pick it up via CMAKE_LIBRARY_PATH for
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# nested ggml-cuda builds — the most robust fix is symlinking the stub
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# into /usr/local/lib (which ld checks unconditionally) AND providing
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# libcuda.so.1 (the SONAME ggml-cuda links against). The symlinks live
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# only in this build stage; the runtime image gets the real driver-
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# provided libcuda.so.1 via NVIDIA's container runtime.
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RUN ln -s /usr/local/cuda/lib64/stubs/libcuda.so /usr/local/lib/libcuda.so \
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&& ln -s /usr/local/cuda/lib64/stubs/libcuda.so /usr/local/lib/libcuda.so.1 \
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&& ldconfig
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RUN cmake -G Ninja -B build -DCMAKE_BUILD_TYPE=Release -DS2_CUDA=ON \
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&& cmake --build build --parallel $(nproc) --target s2
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# ── Stage 2: runtime — slim image with the binary + python shim ────────
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FROM nvidia/cuda:12.6.0-runtime-ubuntu24.04
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ENV DEBIAN_FRONTEND=noninteractive \
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PYTHONUNBUFFERED=1 \
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PYTHONDONTWRITEBYTECODE=1
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RUN apt-get update && apt-get install -y --no-install-recommends \
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python3 python3-pip python3-venv tini \
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libgomp1 \
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&& rm -rf /var/lib/apt/lists/*
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# libgomp1 = GNU OpenMP runtime — required by the s2 binary at runtime.
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# CMake auto-enabled OpenMP at build time (gcc has -fopenmp), so the
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# binary dynamically links libgomp.so.1; the slim cuda:runtime base
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# doesn't include it by default. Without this, s2 fails on first
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# invocation with "error while loading shared libraries: libgomp.so.1".
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# Pull the shim deps into an isolated venv so we don't fight system pip.
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RUN python3 -m venv /opt/venv
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ENV PATH="/opt/venv/bin:${PATH}"
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RUN pip install --no-cache-dir 'fastapi>=0.115' 'uvicorn[standard]>=0.30' 'pydantic>=2'
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# Copy the s2 binary + GGML runtime libs from the builder stage.
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COPY --from=builder /src/s2.cpp/build/s2 /usr/local/bin/s2
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COPY --from=builder /src/s2.cpp/build/ggml/src/libggml*.so /usr/local/lib/
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COPY --from=builder /src/s2.cpp/build/ggml/src/ggml-cuda/libggml-cuda.so /usr/local/lib/
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RUN ldconfig
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WORKDIR /app
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COPY server.py /app/server.py
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# Bind-mounted at runtime: weights at /weights, references at /references.
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VOLUME /weights
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VOLUME /references
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EXPOSE 8000
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ENTRYPOINT ["/usr/bin/tini", "--"]
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CMD ["uvicorn", "server:app", "--host", "0.0.0.0", "--port", "8000", "--no-access-log"]
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