spreadsheet-mcp 0.8.0

An MCP server that lets LLM agents explore and edit spreadsheet workbooks
Documentation 
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# syntax=docker/dockerfile:1

FROM rust:1.91.1-bookworm AS builder

RUN apt-get update && apt-get install -y --no-install-recommends \
    pkg-config libssl-dev \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /build

# Copy manifests first for dependency caching
COPY Cargo.toml Cargo.lock ./

# Create dummy src to build deps
RUN mkdir src && echo "fn main() {}" > src/main.rs

# Build dependencies only (cached unless Cargo.toml/lock change)
RUN --mount=type=cache,target=/usr/local/cargo/registry \
    --mount=type=cache,target=/build/target \
    cargo build --release --locked --features recalc

# Copy actual source
COPY src ./src

# Build the real binary
RUN --mount=type=cache,target=/usr/local/cargo/registry \
    --mount=type=cache,target=/build/target \
    touch src/main.rs && \
    cargo build --release --locked --features recalc && \
    cp target/release/spreadsheet-mcp /usr/local/bin/spreadsheet-mcp

FROM debian:bookworm-slim

# LibreOffice layer (rarely changes, large)
RUN apt-get update && apt-get install -y --no-install-recommends \
    libreoffice-calc \
    poppler-utils \
    default-jre-headless \
    fonts-liberation \
    fonts-noto-core \
    fonts-noto-cjk \
    fontconfig \
    && fc-cache -f \
    && rm -rf /var/lib/apt/lists/*

RUN mkdir -p /etc/libreoffice/4/user/basic/Standard \
    && mkdir -p /root/.config/libreoffice/4/user/basic/Standard

# Pre-initialize profile
RUN soffice --headless --norestore --nodefault --nolockcheck --terminate_after_init || true

# Macro files (rarely change)
COPY docker/libreoffice/Module1.xba /etc/libreoffice/4/user/basic/Standard/
COPY docker/libreoffice/script.xlb /etc/libreoffice/4/user/basic/Standard/
COPY docker/libreoffice/registrymodifications.xcu /etc/libreoffice/4/user/
COPY docker/libreoffice/Module1.xba /root/.config/libreoffice/4/user/basic/Standard/
COPY docker/libreoffice/script.xlb /root/.config/libreoffice/4/user/basic/Standard/
COPY docker/libreoffice/registrymodifications.xcu /root/.config/libreoffice/4/user/

# Binary (changes with code)
COPY --from=builder /usr/local/bin/spreadsheet-mcp /usr/local/bin/spreadsheet-mcp

WORKDIR /data

# Defaults so override/stdio runs still see mounted workspace.
ENV SPREADSHEET_MCP_WORKSPACE=/data
ENV SPREADSHEET_MCP_RECALC_ENABLED=true

LABEL org.opencontainers.image.source="https://github.com/PSU3D0/spreadsheet-mcp"
LABEL org.opencontainers.image.description="MCP server for spreadsheet analysis and editing (full image with LibreOffice for write/recalc)"
LABEL org.opencontainers.image.licenses="Apache-2.0"
LABEL io.modelcontextprotocol.server.name="io.github.psu3d0/spreadsheet-mcp"

ENTRYPOINT ["spreadsheet-mcp"]
CMD ["--workspace-root", "/data", "--transport", "http", "--http-bind", "0.0.0.0:8079"]