Incident Library

Organisation

ckck803

ckck803 · ckck803

1 case · 2026

Root cause Certificate or credential expiry
Component CalicoetcdKubernetes API serverkubelet
Contributing factor Unreviewed defaults
Symptom Control plane unresponsiveContainer crash loop

Cases

  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