Calico

Cases, by severity

1. IL-0183 kubeadm's one-year leaf certificates expired, so kube-apiserver could not reach etcd, restarted in a loop and left the cluster unreachableckck803 · 2026

   Root cause Certificate or credential expiry

2. IL-0087 After a cold reboot of RKE2 nodes, pods could not get IP addresses because Multus could not reach the Kubernetes API, and further reboots spread the failure to every nodeFyra Labs · 2023

   Root cause unknown

3. IL-0060 Kubernetes 1.24 upgrade removed the master node label that Calico route reflectors selected on, dropping all pod routes and taking Reddit down for 314 minutes