traefik suddenly not working - how to upgrade from the command line?

[TimHeckel]

Hey all - so I think k3 automatically was upgrading traefik when something failed during install. Typically I can do a helm "upgrade" command via lens to get traefik back, but it's unresponsive - is there a helm upgrade command that targets the traefik version that is being used? The app version is listed as 2.6.2. Would love any help here...thanks so much.

[mysticaltech]

@TimHeckel Please look in the Traefik template traefik_config.yaml.tpl; it should have a spec of failurePolicy: abort, which should protect the cluster against failed Traefik upgrades. But maybe the version of Kube-Hetzner you have does not have it.

So just apply the most recent traefik_config.yaml.tpl found in the repo, transfer it to a proper yaml format first manually, and if you want to read your current one via kubectl get helmchartconfig in the proper namespace.

[TimHeckel]

Thank you! That worked. I transferred the values manually to an install file and ran

kubectl apply -f traefik_install.yaml -n kube-system

My version of kube-hetzner does not have failurePolicy: abort set I think. I haven't had time to upgrade to the latest, but it's on my list.

Thanks again!

[mysticaltech]

Awesome to hear @TimHeckel, and to upgrade, the easiest path is just to deploy a new cluster and migrate everything with a sweet tool from VMWare called Velero; more about this here https://velero.io/docs/v1.9/migration-case/.