kubelet fails to get cgroup stats for docker and kubelet services
Try to start kubelet with
--runtime-cgroups=/systemd/system.slice --kubelet-cgroups=/systemd/system.slice
I'm using this solution on RHEL7 with Kubelet 1.8.0 and Docker 1.12
The angeloxx's workaround works also on AWS default image for kops (k8s-1.8-debian-jessie-amd64-hvm-ebs-2017-12-02 (ami-bd229ec4))
sudo vim /etc/sysconfig/kubelet
add at the end of DAEMON_ARGS string:
--runtime-cgroups=/systemd/system.slice --kubelet-cgroups=/systemd/system.slice
finally:
sudo systemctl restart kubelet