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Optimize: switch to output:'standalone' + slim runner image

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Vorher: 1.22 GB Image (volle node_modules im Container).
Nachher: ~150 MB (Next.js erzeugt unter .next/standalone einen
selbst-enthaltenden Server-Tree mit nur den Runtime-Dependencies).
Dockerfile kopiert standalone-Output + .next/static + public,
entfernt node_modules/package.json/src-Copy, startet mit 'node server.js'.
This commit is contained in:
Jan Wagner
2026-08-31 20:11:22 +02:00
parent f717144922
commit 318efe45c6
2 changed files with 12 additions and 11 deletions
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Dockerfile
+8 -11
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@@ -18,20 +18,17 @@ RUN npm run build
FROM node:22.13-bookworm-slim AS runner
WORKDIR /app
ENV NODE_ENV=production NEXT_TELEMETRY_DISABLED=1 PORT=3000
ENV NODE_ENV=production NEXT_TELEMETRY_DISABLED=1 PORT=3000 HOSTNAME=0.0.0.0
# Non-Root
RUN groupadd --system --gid 1001 nodejs \
&& useradd --system --uid 1001 --gid nodejs eldov
# Standalone-Output kopieren (Next.js legt ihn unter .next/standalone an,
# wenn output: 'standalone' gesetzt ist; hier vorerst klassischer next start).
COPY --from=build /app/.next ./.next
COPY --from=build /app/public ./public
COPY --from=build /app/src ./src
COPY --from=build /app/package.json ./package.json
COPY --from=build /app/next.config.ts ./next.config.ts
COPY --from=build /app/proxy.ts ./proxy.ts
COPY --from=build /app/node_modules ./node_modules
# Standalone-Output (Next.js legt ihn unter .next/standalone an). Wir kopieren
# den selbst-enthaltenden Server-Tree und die zwei statischen Ordner, die
# Next nicht mit reinpackt (public + .next/static).
COPY --from=build --chown=eldov:nodejs /app/.next/standalone ./
COPY --from=build --chown=eldov:nodejs /app/.next/static ./.next/static
COPY --from=build --chown=eldov:nodejs /app/public ./public
RUN mkdir -p /app/data && chown -R eldov:nodejs /app
USER eldov
EXPOSE 3000
CMD ["npm", "run", "start"]
CMD ["node", "server.js"]