FROM node:20-slim
# Zelin Cluster Worker — RigoChat-7B-v2 inference node

# System deps
RUN apt-get update && apt-get install -y --no-install-recommends \
    python3 make g++ git curl wget ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# CPU Performance
ENV NODE_OPTIONS="--max-old-space-size=6144"
ENV UV_THREADPOOL_SIZE=16

WORKDIR /app

# Copy package files first
COPY package.json package-lock.json* ./

# Install dependencies
RUN npm install --production 2>&1 | tail -5 || \
    npm install --legacy-peer-deps 2>&1 | tail -5 || true

# Copy application code
COPY . .

# Setup
RUN mkdir -p /app/models /tmp/zelin-cache

ENV PORT=7860
ENV NODE_ENV=production
ENV MODEL_DIR=/app/models

EXPOSE 7860

HEALTHCHECK --interval=30s --timeout=10s --start-period=180s --retries=5 \
    CMD curl -f http://localhost:7860/health || exit 1

CMD ["node", "worker.js"]