Dockerfile

# Use Node.js 18 LTS as base image
FROM node:18-alpine

# Set working directory
WORKDIR /app

# Install system dependencies
RUN apk add --no-cache \
    curl \
    git \
    && rm -rf /var/cache/apk/*

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci --only=production && npm cache clean --force

# Copy application code
COPY . .

# Create non-root user
RUN addgroup -g 1001 -S nodejs && \
    adduser -S langforge -u 1001

# Create necessary directories
RUN mkdir -p /app/logs /app/dist && \
    chown -R langforge:nodejs /app

# Build the application
RUN npm run build

# Switch to non-root user
USER langforge

# Expose port
EXPOSE 3000

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:3000/api/health || exit 1

# Start the application
CMD ["npm", "start"]