Add production Docker setup

- Dockerfile: multi-stage build (deps → builder → standalone runner)
- docker-compose.prod.yml: app on port 3010 + PostgreSQL 16
- entrypoint.sh: runs prisma migrate deploy then starts node server
- next.config.ts: standalone output for minimal Docker image
- .dockerignore: exclude dev files from build context

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.dockerignore

@@ -0,0 +1,14 @@
+.git
+.gitignore
+.env
+.env.local
+.env.production
+node_modules
+.next
+src/generated
+prisma/migrations
+*.md
+docker-compose.yml
+docker-compose.prod.yml
+Dockerfile
+.dockerignore

Dockerfile

@@ -0,0 +1,49 @@
+# Stage 1: Install all dependencies
+FROM node:20-alpine AS deps
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci
+
+# Stage 2: Build
+FROM node:20-alpine AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+# Generate Prisma client before build
+RUN npx prisma generate
+RUN npm run build
+
+# Stage 3: Production runner (standalone)
+FROM node:20-alpine AS runner
+WORKDIR /app
+ENV NODE_ENV=production
+
+RUN addgroup --system --gid 1001 nodejs \
+ && adduser --system --uid 1001 nextjs
+
+# Standalone output
+COPY --from=builder /app/.next/standalone ./
+COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
+COPY --from=builder /app/public ./public
+
+# Prisma: migrations + generated client
+COPY --from=builder /app/prisma ./prisma
+COPY --from=builder /app/src/generated ./src/generated
+COPY --from=builder /app/prisma.config.ts ./prisma.config.ts
+COPY --from=builder /app/tsconfig.json ./tsconfig.json
+
+# Copy prisma CLI + dotenv for migrate deploy in entrypoint
+COPY --from=builder /app/node_modules/.bin/prisma /usr/local/bin/prisma
+COPY --from=builder /app/node_modules/prisma ./node_modules/prisma
+COPY --from=builder /app/node_modules/@prisma ./node_modules/@prisma
+COPY --from=builder /app/node_modules/dotenv ./node_modules/dotenv
+
+COPY entrypoint.sh ./entrypoint.sh
+RUN chmod +x entrypoint.sh
+
+USER nextjs
+EXPOSE 3000
+ENV PORT=3000
+ENV HOSTNAME="0.0.0.0"
+
+CMD ["./entrypoint.sh"]

docker-compose.prod.yml

@@ -0,0 +1,36 @@
+services:
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    restart: unless-stopped
+    ports:
+      - "3010:3000"
+    environment:
+      DATABASE_URL: "postgresql://lms_user:${DB_PASSWORD}@db:5432/lms_db"
+      BETTER_AUTH_SECRET: "${BETTER_AUTH_SECRET}"
+      BETTER_AUTH_URL: "https://school.second-brain.ru"
+      NEXT_PUBLIC_APP_URL: "https://school.second-brain.ru"
+      RESEND_API_KEY: "${RESEND_API_KEY}"
+      EMAIL_FROM: "${EMAIL_FROM}"
+    depends_on:
+      db:
+        condition: service_healthy
+
+  db:
+    image: postgres:16-alpine
+    restart: unless-stopped
+    environment:
+      POSTGRES_USER: lms_user
+      POSTGRES_PASSWORD: "${DB_PASSWORD}"
+      POSTGRES_DB: lms_db
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U lms_user -d lms_db"]
+      interval: 5s
+      timeout: 5s
+      retries: 10
+
+volumes:
+  postgres_data:

entrypoint.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+set -e
+
+echo "Running database migrations..."
+npx prisma migrate deploy
+
+echo "Starting Next.js..."
+exec node server.js

next.config.ts

@@ -1,7 +1,7 @@
 import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
-  /* config options here */
+  output: "standalone",
 };
 
 export default nextConfig;