# =============================================================================
# DCTS Worker Node Dockerfile — Fortran (gfortran/BLAS/LAPACK) + Node Runner
# =============================================================================

# ─── Stage 1: Rust Node Worker 二进制编译 ────────────────────────────────────
FROM rust:1.94-alpine AS node-builder

# 国内（CN）网络构建时传 --build-arg USE_MIRRORS=1 切换 apk 源；默认关闭避免境外构建失败。
ARG USE_MIRRORS=0

RUN if [ "$USE_MIRRORS" = "1" ]; then \
      sed -i 's|dl-cdn.alpinelinux.org|mirrors.aliyun.com|g' /etc/apk/repositories; \
    fi

# 国内构建时传 --build-arg CARGO_MIRROR=1，将 crates.io 切换到 rsproxy 稀疏镜像。
ARG CARGO_MIRROR=0
RUN if [ "$CARGO_MIRROR" = "1" ]; then \
      mkdir -p /usr/local/cargo && \
      printf '[source.crates-io]\nreplace-with = "rsproxy-sparse"\n\n[source.rsproxy-sparse]\nregistry = "sparse+https://rsproxy.cn/index/"\n' \
        > /usr/local/cargo/config.toml; \
    fi

RUN apk add --no-cache musl-dev g++ make cmake pkgconfig sqlite-dev openssl-dev openssl-libs-static
WORKDIR /app
COPY Cargo.toml Cargo.lock ./
COPY crates/ ./crates/
COPY assets/tlusty_static assets/synspec_static ./assets/
RUN cargo build --release -p node && \
    cp /app/target/release/node /usr/local/bin/dcts-node

# ─── Stage 2: 精简 Debian 运行环境镜像 (包含完整 glibc + libmvec + libgfortran) ─
#
# ⚠️ 重要：运行镜像必须为 glibc 系（debian/ubuntu），不可换 alpine/musl。
# assets/tlusty_static 与 synspec_static 是 gfortran/glibc 动态链接的 ELF（依赖
# libgfortran.so.5 / libmvec.so.1 / ld-linux-x86-64.so.2），在 musl 上无法执行。
# 若误改为 alpine 基础镜像，嵌入的二进制会以 "No such file or directory" 失败。
FROM debian:bookworm-slim

RUN apt-get update && apt-get install -y --no-install-recommends \
    libgfortran5 \
    ca-certificates \
    && rm -rf /var/lib/apt/lists/* /var/cache/apt/*

# 创建非 root 账号管理运行
RUN groupadd -g 65532 dcts && useradd -u 65532 -g dcts -s /bin/bash dcts

WORKDIR /app

COPY --from=node-builder /usr/local/bin/dcts-node /app/

RUN mkdir -p /app/data /app/data/logs /app/data/runtime /app/data/work /app/data/result /app/assets && \
    chown -R dcts:dcts /app

USER dcts

ENV DCTS_SERVER_URL=http://dcts-server:8090
ENV DCTS_MAX_SLOTS=4
ENV DCTS_HEARTBEAT_SEC=15
ENV DCTS_RUNTIME_DIR=/app/data/runtime
ENV DCTS_WORK_DIR=/app/data/work
# node 完整计算结果归档目录（光谱/连续谱/各阶段产物）。旧名 DCTS_ARCHIVE_DIR 向后兼容回退。
ENV DCTS_RESULT_DIR=/app/data/result
ENV DCTS_ASSETS_DIR=/app/assets
ENV LOG_DIR=/app/data/logs

VOLUME ["/app/data"]

ENTRYPOINT ["/app/dcts-node"]