I do have a 4 node microk8s cluster running (Raspi Pi4, 4 GB, HA-Cluster: disabled v1.20/stable) but one node cannot launch containers, it always throws the following error:
Warning FailedCreatePodSandBox 26s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to setup network for sandbox “825089f6699e74a2a7bd76166a8088254faf3522fde4bc9b8b0e871d2459c745”: error getting ClusterInformation: Get https://[10.152.183.1]:443/apis/crd.projectcalico.org/v1/clusterinformations/default: x509: certificate signed by unknown authority (possibly because of “crypto/rsa: verification error” while trying to verify candidate authority certificate “10.152.183.1”)
I have tried to update my ~/.kube/config file already as I saw this was helping others, but no luck. I wiped microk8s via snap, rebuild the whole cluster but this issue keeps reocurring and always with the same node2. Thus, I suspect it is something related to node2.
Thx for help!