Dockerfile

# ── Stage 1: 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 . .

# Dummy DATABASE_URL for prisma generate (no real DB needed at build time)
ENV DATABASE_URL="postgresql://dummy:dummy@localhost:5432/dummy"

# Build (prisma generate + next build)
RUN npm run build

# ── Stage 3: Production ──
FROM node:20-alpine AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

# Create non-root user
RUN addgroup --system --gid 1001 nodejs && \
    adduser --system --uid 1001 nextjs

# Copy built Next.js standalone app
COPY --from=builder /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

# Copy Prisma schema, migrations, config for runtime migrate deploy
COPY --from=builder /app/prisma ./prisma
COPY --from=builder /app/prisma.config.ts ./prisma.config.ts

# Copy full node_modules (needed for prisma CLI + pg adapter at runtime)
COPY --from=builder /app/node_modules ./node_modules

# Entrypoint script
COPY --from=builder /app/entrypoint.sh ./entrypoint.sh
RUN chmod +x ./entrypoint.sh

USER nextjs

EXPOSE 3000
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

ENTRYPOINT ["./entrypoint.sh"]