Dockerfile

# ── Stage 1: Dependencies ──
FROM node:20-alpine AS deps
WORKDIR /app

COPY package.json package-lock.json .npmrc ./
RUN npm ci --legacy-peer-deps

# ── Stage 2: Build ──
FROM node:20-alpine AS builder
WORKDIR /app

COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Generate Prisma client if schema exists
RUN if [ -f prisma/schema.prisma ]; then npx prisma generate; fi

RUN npm run build

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

ENV NODE_ENV=production
ENV PORT=8080
ENV HOSTNAME="0.0.0.0"

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

# Copy standalone build output
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

USER nextjs

EXPOSE 8080

CMD ["node", "server.js"]