Dockerfile

# Use Node.js LTS version
FROM node:18-slim

# Create app directory
WORKDIR /usr/src/app

# Install dependencies directly
RUN npm init -y && \
    npm install express body-parser nodemailer

# Copy application code
COPY recharge.js .

# Expose the port the app runs on
EXPOSE 3000

# Command to run the application
CMD [ "node", "recharge.js" ]