LetterFeed/frontend/Dockerfile

# Dockerfile for Next.js frontend

# 1. Build Stage
FROM node:24-alpine AS builder
WORKDIR /app

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

# Install dependencies
RUN npm install

# Copy the rest of the application
COPY . .

# Set the API URL for the build
ARG NEXT_PUBLIC_API_URL=/api
ENV NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL}

# Build the Next.js application
RUN npm run build

# 2. Production Stage
FROM node:24-alpine
WORKDIR /app

# Copy the built application from the builder stage
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/public ./public
COPY --from=builder /app/package.json ./package.json
COPY --from=builder /app/node_modules ./node_modules

# Expose the port the app runs on
EXPOSE 3000

# Start the application
CMD ["npm", "start"]