Spaces:
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| # Flux Studio — Zero GPU | |
| # Hugging Face Docker Space · free CPU tier · no GPU needed. | |
| # All image generation is proxied to the Black Forest Labs FLUX API. | |
| # Pinned Node LTS (as required: explicit Node major, reproducible builds). | |
| FROM node:20-slim | |
| # Hugging Face Spaces runs containers as user 1000. | |
| RUN useradd -m -u 1000 user \ | |
| && mkdir -p /app && chown -R user:user /app | |
| USER user | |
| WORKDIR /app | |
| # Install dependencies first for better layer caching. | |
| # package-lock.json is committed, so `npm ci` is fully reproducible. | |
| COPY --chown=user:user package.json package-lock.json ./ | |
| RUN npm ci --omit=dev && npm cache clean --force | |
| # App code. | |
| COPY --chown=user:user . . | |
| # Build-time verification (fails the image build if the app is broken). | |
| RUN npm run build | |
| ENV NODE_ENV=production \ | |
| PORT=7860 \ | |
| HOST=0.0.0.0 | |
| EXPOSE 7860 | |
| # BFL_API_KEY is injected by Hugging Face at runtime (Space Secrets): | |
| # BFL_API_KEY (required for generation; app refuses generation without it) | |
| # BFL_MODEL_ID (default: flux-2-pro-preview) | |
| # BFL_FALLBACK_MODEL_ID (default: flux-2-klein-9b) | |
| # BFL_API_BASE_URL (default: https://api.bfl.ai) | |
| CMD ["node", "server.mjs"] | |