This error occurs when the kubelet cannot properly manage container cgroups, typically due to incorrect driver configuration or cgroup issues.
Fixes Kubelet cgroup manager error
# Kubelet cgroup manager errorKubelet cgroup manager error
The "Kubelet cgroup manager error" indicates that the kubelet cannot configure cgroups for containers.
cat /etc/kubernetes/kubelet.conf | grep cgroupDriver
docker info | grep Cgroup || containerd config dump | grep cgroup
Edit /etc/kubernetes/kubelet.conf to set cgroupDriver
Update container runtime cgroup driver
sudo systemctl restart kubelet
Ensure kubelet and container runtime use same cgroup driver: systemd or cgroupfs.