Enable a single LightRAG server instance to serve multiple isolated workspaces
via HTTP header-based routing. This allows multi-tenant SaaS deployments where
each tenant's data is completely isolated.
Key features:
- Header-based workspace routing (LIGHTRAG-WORKSPACE, X-Workspace-ID fallback)
- Process-local pool of LightRAG instances with LRU eviction
- FastAPI dependency (get_rag) for workspace resolution per request
- Full backward compatibility - existing deployments work unchanged
- Strict multi-tenant mode option (LIGHTRAG_ALLOW_DEFAULT_WORKSPACE=false)
- Configurable pool size (LIGHTRAG_MAX_WORKSPACES_IN_POOL)
- Graceful shutdown with workspace finalization
Configuration:
- LIGHTRAG_DEFAULT_WORKSPACE: Default workspace (falls back to WORKSPACE)
- LIGHTRAG_ALLOW_DEFAULT_WORKSPACE: Require explicit header when false
- LIGHTRAG_MAX_WORKSPACES_IN_POOL: Max concurrent workspace instances (default: 50)
Files:
- New: lightrag/api/workspace_manager.py (core multi-workspace module)
- New: tests/test_multi_workspace_server.py (17 unit tests)
- New: render.yaml (Render deployment blueprint)
- Modified: All route files to use get_rag dependency
- Updated: README.md, env.example with documentation
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
