Dockerfile

# Use an official Node.js runtime as a parent image
FROM node:14

# Set the working directory in the container
WORKDIR /node-ui

# Copy the package.json and package-lock.json to the working directory
COPY package*.json ./

# Install the dependencies
RUN npm install

# Copy the rest of the application code to the working directory
COPY . .

# Build the React application
RUN node create-env.js && npm run build

# Serve the built React application using a simple HTTP server
RUN npm install -g serve

# Expose port 3000 to the outside world
EXPOSE 7860

# Start the server
CMD ["serve", "-s", "build", "-l", "7860"]