Dockerfile

# ============================================
# Stage 1: Dependencies
# Install Node.js dependencies
# ============================================
FROM node:20-slim AS deps

WORKDIR /app

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

# Install dependencies (including devDependencies for build)
# Use npm install because lockfile contains override-resolved entries that
# can fail strict npm ci validation across npm minor/runtime differences.
RUN npm install --no-audit --no-fund

# ============================================
# Stage 2: Builder
# Build Next.js application
# ============================================
FROM node:20-slim AS builder

WORKDIR /app

# Copy dependencies from deps stage
COPY --from=deps /app/node_modules ./node_modules

# Copy source files
COPY package.json package-lock.json ./
COPY next.config.mjs tsconfig.json postcss.config.mjs eslint.config.mjs ./
COPY src ./src
COPY public ./public

# Set production environment for build
ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

# Build Next.js application
RUN npm run build

# ============================================
# Stage 3: Runner
# Production image with Python + Next.js
# ============================================
FROM python:3.12-slim AS runner

WORKDIR /app

# Set environment variables
ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
ENV PYTHONPATH=/app
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
ENV HOSTNAME=0.0.0.0
ENV PORT=3000
ENV EXTRACTOR_PROFILE=full

# Install system dependencies
# - Node.js 20 for Next.js runtime
# - FFmpeg for video/audio processing
# - curl for health checks
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    gnupg \
    ffmpeg \
    && rm -rf /var/lib/apt/lists/*

# Install Node.js 20
RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash - \
    && apt-get install -y nodejs \
    && rm -rf /var/lib/apt/lists/*

# Install Python dependencies
COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

# Copy built Next.js application from builder stage
COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/.next/static ./.next/static
COPY --from=builder /app/public ./public

# Copy Python API
COPY api ./api

# Copy CHANGELOG.md for changelog page
COPY CHANGELOG.md ./

# Copy startup script
COPY start.sh /app/start.sh
RUN chmod +x /app/start.sh

# Expose Next.js and Python API ports
EXPOSE 3000 5000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
    CMD curl -f http://localhost:${PORT:-3000}/api/health || exit 1

# Start the application
CMD ["/app/start.sh"]