# Use official Node.js runtime
FROM node:20-alpine

# Create app directory
WORKDIR /usr/src/app

# Copy package files first (better caching)
COPY package*.json ./

# Install dependencies
RUN npm ci --only=production

# Copy application source
COPY . .

# Expose the app port
# EXPOSE 3000

# Environment variable
ENV NODE_ENV=production

# Start the application
CMD ["node", "src/index.js"]