Deployment & Production

// next.config.ts for different deployment targets

// Standalone output (Docker/self-hosted)
const config = {
  output: "standalone",  // minimal self-contained build
};

// Static export (no server needed)
const config = {
  output: "export",  // only works if no dynamic routes/server features
};

// package.json scripts
{
  "scripts": {
    "dev": "next dev",
    "build": "next build",        // creates .next/ folder
    "start": "next start",        // starts production server
    "lint": "next lint"
  }
}

// Dockerfile (standalone)
FROM node:20-alpine AS builder
WORKDIR /app
COPY . .
RUN npm ci && npm run build

FROM node:20-alpine AS runner
WORKDIR /app
COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/.next/static ./.next/static
COPY --from=builder /app/public ./public
CMD ["node", "server.js"]

// 1. Environment variables in production (Vercel)
// Set via Vercel dashboard or CLI:
// vercel env add DATABASE_URL production

// 2. Database migrations before deploy
// package.json
{
  "scripts": {
    "build": "prisma generate && prisma migrate deploy && next build"
  }
}

// 3. Health check endpoint
// app/api/health/route.ts
export async function GET() {
  try {
    await db.$queryRaw`SELECT 1`;  // check DB connection
    return Response.json({ status: "ok", timestamp: new Date().toISOString() });
  } catch {
    return Response.json({ status: "error" }, { status: 503 });
  }
}

// 4. Error monitoring (Sentry)
// next.config.ts
import { withSentryConfig } from "@sentry/nextjs";
export default withSentryConfig(config, { silent: true });