Dockerfile

# Use Node.js 22 Alpine for smaller image size
FROM node:22-alpine

# Set working directory
WORKDIR /app

# Copy package files
COPY package*.json ./

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

# Copy source code
COPY src/ ./src/

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

# Change ownership to non-root user
RUN chown -R hellocoop:nodejs /app
USER hellocoop

# Expose port 3000
EXPOSE 3000

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://localhost:3000/health || exit 1

# Set environment variables
ENV NODE_ENV=production
ENV PORT=3000

# Start the HTTP server
CMD ["node", "src/http.js"]