Control Plane Failure

  1. If kubeadm check pods in kube-system namespace.

  2. If deployed as service then check the service workings

  • service apiserver status
  • service kube-controller-manager status
  • service kube-scheduler status
  • service kubelet status
  • service kube-proxy status
  1. Check logs of control plane compnents

  • If kubeadm use logs

    kubectl logs <name> -n kube-system
  • If deployed as service use

    sudo journalctl -u <name>
  • If error with certificates, check volumes, volumeMounts & direct volumes

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