Invalid certificate: Error: Invalid certificate.

[ariqmbrilian]

I have single node k3s cluster version v1.28.4+k3s2. I want to connect it to Azure DevOps service connection but show error like the title. I have generated new kubeconfig with new public ip curl -sfL https://get.k3s.io | INSTALL_K3S_VERSION=v1.28.4+k3s2 INSTALL_K3S_EXEC="--tls-san public ip" sh -

[brandond]

I suspect you need to modify the k3s kubeconfig to point at the public IP of your node, as described at: https://docs.k3s.io/cluster-access#accessing-the-cluster-from-outside-with-kubectl

[ariqmbrilian]

i have change from 127.0.0.0 or localhost to my public ip. i also generate kubeconfig with SAN my public ip

[brandond]

Did you use the correct port as well?

[ariqmbrilian]

yes

[brandond]

Either that's the wrong kubeconfig or the URL is wrong. The CA certificates are embedded in the kubeconfig itself so I'm not sure how you would be getting a validation error.

[getangar]

I have the same issue and the kubeconfig is correct: I can interact with the cluster by using kubectl without issues. Just ADO won't work.

[brandond]

Maybe open an issue with them then?

[ariqmbrilian]

Have you try to create new service account? The problem is solved by myself