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tiennm99 2bb5108151 feat(renderer): deploy the renderer next to the bot in compose

The bot now reaches the renderer at http://renderer:3000/api/gif on the
compose network instead of a separately deployed service. Both share
WHEELOFNAMES_API_TOKEN. CI runs the renderer's lint, typecheck, tests,
render smoke, and image build.

2026-10-03 11:16:54 +07:00

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Deployment

miti99bot compose

The root compose.yml builds this folder as the renderer service and points the bot at it over the compose network. Only WHEELOFNAMES_API_TOKEN needs a value there; it becomes API_TOKEN below. The rest of this page covers running the service on its own.

Recommendation

Use a self-hosted/container runtime for v1. Static-only hosts are not enough because /api/gif must render GIF bytes on the server with Remotion.

Good first targets:

Coolify Docker app
Fly.io
Railway
Render
VPS with Docker
Google Cloud Run generic container

Avoid for v1:

Cloudflare Workers/Pages
pure static Vercel/Netlify deploys

Runtime

Required env vars:

PORT=3000
HOST=0.0.0.0
MAX_CONCURRENT_RENDERS=1
RENDER_TIMEOUT_MS=15000
MAX_OPTIONS=32
MAX_OPTION_CHARS=40
API_TOKEN=change-me

The root compose.yml forwards the tuning values with ${VAR:-default} fallbacks, so unset or empty variables use the defaults above.

Start with 1-2 vCPU and 1-2 GB RAM. Increase only after render benchmarks show the service is CPU-bound or concurrency-limited.

Local non-Docker render smoke requires Chrome Headless Shell shared libraries, including libnspr4 and libnss3. Prefer Docker for consistent verification. The Docker image runs npm run browser:ensure during build so production requests do not need to download Chrome Headless Shell on first render.

RENDER_TIMEOUT_MS is a total render timeout. Values below 7000 are raised to 7000 because Remotion's browser timeout has that minimum.

Set API_TOKEN for every production deployment. The server refuses to start with NODE_ENV=production unless the token is configured.

Health

curl http://localhost:3000/api/healthz

Render Test

curl -X POST http://localhost:3000/api/gif \
  -H 'content-type: application/json' \
  -H 'authorization: Bearer change-me' \
  --output wheel.gif \
  --data '{"options":["alice","bob","carol"],"winnerIndex":1}'

1.9 KiB Raw Blame History