Dockerfile

# ─── 今彩539 AI 預測系統 — Dockerfile ───────────────────────────────────────
# Multi-stage is unnecessary here, keep it simple with Node 18 Alpine.
# The container:
#   1. On startup: runs scraper.js (+ backtest.js) if data doesn't exist yet
#   2. Schedules a daily cron at 21:30 (Asia/Taipei) to refresh data automatically
#   3. Runs serve.js (HTTP server on port 7860) in the foreground

FROM node:18-alpine

# Install timezone data so cron runs at correct Taiwan time
RUN apk add --no-cache tzdata

ENV TZ=Asia/Taipei

WORKDIR /app

# Copy application files
COPY . .

# Create logs directory
RUN mkdir -p /app/logs

# Register the cron job:
#   Every day at 21:30 Asia/Taipei → node scraper.js then node backtest.js
RUN echo "30 21 * * * cd /app && node scraper.js >> /app/logs/scraper.log 2>&1 && node backtest.js >> /app/logs/backtest.log 2>&1" \
    > /etc/crontabs/root

# Expose the web server port
EXPOSE 7860

# Entrypoint
CMD ["sh", "/app/start.sh"]