Dockerfile

# Step 1: Set the base image
FROM node:14

# Step 2: Set working directory
WORKDIR /usr/src/app

# Step 3: Copy package.json files
COPY package*.json ./

# Step 4: Install dependencies
RUN npm install

# Step 5: Copy application files
COPY . .

# Step 6: Expose application port
EXPOSE 3000

# Step 7: Define command to run the application
CMD ["node", "index.js"]