App fails to start: Cannot add middleware after an application has started
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mmwinther commented
│ dapla-start-api-cont File "/root/.cache/pypoetry/virtualenvs/dapla-start-api-9TtSrW0h-py3.9/lib/python3.9/site-packages/starlette/routing.py", line 677, in lifespan │
│ dapla-start-api-cont async with self.lifespan_context(app) as maybe_state: │
│ dapla-start-api-cont File "/root/.cache/pypoetry/virtualenvs/dapla-start-api-9TtSrW0h-py3.9/lib/python3.9/site-packages/starlette/routing.py", line 566, in __aenter__ │
│ dapla-start-api-cont await self._router.startup() │
│ dapla-start-api-cont File "/root/.cache/pypoetry/virtualenvs/dapla-start-api-9TtSrW0h-py3.9/lib/python3.9/site-packages/starlette/routing.py", line 654, in startup │
│ dapla-start-api-cont await handler() │
│ dapla-start-api-cont File "/app/server/api.py", line 26, in startup_event │
│ dapla-start-api-cont Instrumentator(excluded_handlers=["/health/.*", "/metrics"]).instrument(app).expose( │
│ dapla-start-api-cont File "/root/.cache/pypoetry/virtualenvs/dapla-start-api-9TtSrW0h-py3.9/lib/python3.9/site-packages/prometheus_fastapi_instrumentator/instrumentation.py", line 198, in instrument │
│ dapla-start-api-cont app.add_middleware( │
│ dapla-start-api-cont File "/root/.cache/pypoetry/virtualenvs/dapla-start-api-9TtSrW0h-py3.9/lib/python3.9/site-packages/starlette/applications.py", line 139, in add_middleware │
│ dapla-start-api-cont raise RuntimeError("Cannot add middleware after an application has started") │
│ dapla-start-api-cont RuntimeError: Cannot add middleware after an application has started │
│ dapla-start-api-cont │
│ dapla-start-api-cont ERROR: Application startup failed. Exiting.
Seen on staging.