DockerFile

# Use an official Node.js image as the base
FROM node:18-alpine AS builder

# Set the working directory
WORKDIR /app

# Copy the package.json and package-lock.json
COPY package.json  ./

# Install dependencies
RUN npm install

# Copy the rest of the application code
COPY . .

# Build the Next.js application
RUN npm run build

# Use a lightweight Node.js image for the production environment
FROM node:18-alpine AS runner

# Set the working directory
WORKDIR /app

# Install production dependencies only
COPY package.json  ./
RUN npm install --only=production

# Copy the built application from the builder
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/public ./public
COPY --from=builder /app/next.config.ts ./next.config.ts

# Expose the port the app runs on
EXPOSE 3000

# Set the environment variable to indicate production
ENV NODE_ENV=production

# Start the Next.js application
CMD ["npm", "start"]