07. October 2022 1 min read

Cannot recreate IngressRoute Traefik Hub

I was trying to refresh an existing certificate with Traefik and Traefik Hub-agent installed, but I was getting this unrelated webhook internal error. It did not allow me to delete IngressRoute, or even modify it. So when you cannot recreate the IngressRoute using Traefik or Traefik Hub agent with a cryptic error.

error: ingressroutes.traefik.containo.us "app-external" could not be patched: Internal error occurred: failed calling webhook "hub-agent.hub-agent.svc": Post "https://hub-agent-controller.hub-agent.svc:443/?timeout=10s": service "hub-agent-controller" not found

then you should really just delete all certificates and delete Traefik along with hub-agent. The trick is however, that hub-agent does not get completely removed by

helm uninstall hub-agent -n hub-agent

But you need to run also completely remove the webhook configurations by

kubectl delete mutatingwebhookconfigurations hub
kubectl delete validatingwebhookconfigurations hub