# Development Dockerfile for Express.js
FROM node:18-alpine

# Set working directory
WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies (including dev dependencies)
RUN npm install

# Install nodemon globally for hot-reloading
RUN npm install -g nodemon

# Copy project files
COPY . .

# Expose port for Express server
EXPOSE 3000

# Start Express server with nodemon
CMD ["nodemon", "server.js"]