DockerFile

# Use an official Node.js runtime as a parent image
FROM node:18-alpine AS builder

# Set the working directory in the container
WORKDIR /app

# Copy the package.json and package-lock.json (if available)
COPY package.json package-lock.json ./

# Install dependencies
RUN npm install

# Copy the rest of the application code
COPY . .

# Build the application
RUN npm run build

# Install serve to run the application in production
RUN npm install -g serve

# Use a smaller image for the final stage
FROM node:18-alpine AS runner

# Set the working directory in the container
WORKDIR /app

# Copy the build files and node_modules from the builder stage
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/public ./public
COPY --from=builder /app/package.json ./package.json

# Expose the port the app runs on
EXPOSE 3000

# Command to run the application
CMD ["npm", "run", "start"]