Dockerfile

FROM node:22-alpine AS base

# Install dependencies only when needed
FROM base AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app

COPY package.json package-lock.json ./
RUN npm install --frozen-lockfile 2>/dev/null || npm install

# Rebuild the source code only when needed
FROM base AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Generate Prisma client
RUN npx prisma generate

# Build Next.js (no DB needed at build time — migrations run at startup)
ENV NEXT_TELEMETRY_DISABLED=1
RUN npm run build

# Prune dev dependencies for smaller production image
RUN npm prune --production 2>/dev/null || true

# Production image
FROM base 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 public assets
COPY --from=builder /app/public ./public

# Copy standalone output
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

# Copy startup script
COPY --from=builder --chown=nextjs:nodejs /app/start.sh ./start.sh
RUN chmod +x ./start.sh

# Copy prisma schema + migrations for runtime migrate deploy
COPY --from=builder /app/prisma ./prisma
COPY --from=builder /app/prisma.config.ts ./prisma.config.ts
COPY --from=builder /app/src/generated ./src/generated

# Copy production node_modules (pg, @prisma/adapter-pg, prisma CLI, dotenv, etc.)
COPY --from=builder /app/node_modules ./node_modules

USER nextjs

EXPOSE 8080

ENV PORT=8080
ENV HOSTNAME="0.0.0.0"

CMD ["./start.sh"]