Debugging a container with a sidecar using Gefyra
summary
Gefyra creates a local Docker container that sits in the cluster network and Gefyra bridge intercepts the app container so an OAuth2‑Proxy sidecar (upstream to port 8155) and Keycloak run in k3d while a FastAPI backend runs locally. The demo shows attachable debugpy on port 5678, inspects the JWT, finds a capitalization bug and repairs it — fixed bug: Email -> email — and the fix reloads and removes the HTTP 500.
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chapters (9)
- 0:00Gefyra and project goals
- 3:11Kubernetes from day one
- 7:26Demo environment setup
- 12:26OAuth2 sidecar pattern demo
- 14:57Debugging with Gefyra
- 17:27VS Code debugger connection
- 20:41Local and Kubernetes traffic
- 23:09Bug inspection and fix
- 25:18Summary and next steps
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