FROM node:20-alpine

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install production dependencies
RUN npm install --production

# Copy application files
COPY . .

# Set production environment
ENV NODE_ENV=production

# Expose port
EXPOSE 8545

# Run as non-root user
RUN addgroup -g 1001 -S nodejs
RUN adduser -S nodejs -u 1001
USER nodejs

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