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# Stage 1: Build the Next.js application
FROM node:20-alpine AS builder
RUN apk add --no-cache libc6-compat
WORKDIR /app

# Install dependencies
COPY frontend/package.json frontend/package-lock.json ./
RUN npm install

# Copy source files and build the Next.js application
COPY frontend ./
RUN npm run build

# Install PM2 globally
RUN npm install -g pm2

# Stage 2: Run the Next.js application with PM2
FROM node:20-alpine

WORKDIR /app

# Copy the Next.js build and node_modules from the builder stage
COPY --from=builder /app /app

# Install PM2 globally
RUN npm install -g pm2

# Expose port 7860
EXPOSE 7860

# Set the PORT environment variable
ENV PORT=7860

# Start Next.js with PM2
CMD ["pm2-runtime", "start", "npm", "--", "start"]