List the services first
systemctl list-units --type=service
UNIT LOAD ACTIVE SUB DESCRIPTION
containerd.service loaded active running containerd container runtime
dbus.service loaded active running D-Bus System Message Bus
kmod-static-nodes.service loaded active exited Create List of Static Device Nodes
kubelet.service loaded active running kubelet: The Kubernetes Node Agent
Then use the service name with journalctl
journalctl -u kubelet.service
Nov 24 11:18:24 cluster1-controlplane kubelet[920]: E1124 11:18:24.403271 920 run.go:72] "command failed" err="failed to load kubelet config file, path: /var/lib/kubelet/confi>
Nov 24 11:18:34 cluster1-controlplane kubelet[1643]: E1124 11:18:34.588708 1643 run.go:72] "command failed" err="failed to load kubelet config file, path: /var/lib/kubelet/conf>
Nov 24 11:18:37 cluster1-controlplane kubelet[2255]: Flag --container-runtime-endpoint has been deprecated, This parameter should be set via the config file specified by the Kubel>
Nov 24 11:18:37 cluster1-controlplane kubelet[2255]: Flag --pod-i