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Previously each API replica generated a random Ed25519 signing key at startup (unless DEBUG_SIGNING_KEY_SEED was set). In multi-replica deployments this caused "Invalid JWT signature" rejections in the multiplayer server: the browser could sign a token on pod A while `windmill-extra` had cached the JWKS public key from pod B. Derive the seed deterministically from the DB-backed JWT_SECRET using SHA-256 with a domain-separation tag so all pods agree without coordination. Re-derive on JWT_SECRET rotation. The DEBUG_SIGNING_KEY_SEED env var is still honored as an override. Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Windmill Backend
This folder holds all backend components, the src/ folder only contains files used to build the "root" binary.
Components
| name | description |
|---|---|
| windmill-api | The API server, exposing functionality to other components and the frontend |
| windmill-audit | Contains audit functionality, allowing different components to record important actions |
| windmill-common | Common code shared by all crates |
| windmill-queue | Contains job & flow queuing functionality, commonly written to by the API server and read from by workers |
| windmill-worker | The worker. Used to process and execute flows & jobs. |
| parsers | Contains code to parse signatures in different langauges. |
Compile sqlx for offline ci
cargo sqlx prepare --workspace -- --bin windmill --features enterprise