Dockerfile

# ── Stage 1: Install dependencies ──
FROM node:24-alpine AS deps
WORKDIR /app

COPY package.json package-lock.json ./
COPY prisma ./prisma/

RUN npm ci

# ── Stage 2: Build the application ──
FROM node:24-alpine AS builder
WORKDIR /app

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

ENV NEXT_TELEMETRY_DISABLED=1

# Dummy build-time env vars (overridden at runtime via .env)
ENV NEXTAUTH_SECRET="build-placeholder"
ENV NEXTAUTH_URL="http://localhost:3000"
ENV DATABASE_URL="postgresql://placeholder:placeholder@localhost:5432/placeholder"

RUN npx prisma generate
RUN npm run build

# ── Stage 3: Production runner ──
FROM node:24-alpine AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

# Copy built standalone 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

# Copy Prisma CLI, engine, and migrations for runtime migrate
COPY --from=builder /app/prisma ./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/@prisma ./node_modules/@prisma

USER nextjs

EXPOSE 3000

ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

CMD ["sh", "-c", "node node_modules/prisma/build/index.js migrate deploy && node server.js"]