1. Edit the Kubelet Configuration File

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vim /etc/systemd/system/kubelet.service.d/10-kubeadm.conf

Modify the relevant Kubelet parameters

ExecStart=/usr/local/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_KUBEADM_ARGS $KUBELET_EXTRA_ARGS

You can list the available parameters with the following command:

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kubelet --help

For example, if you need to change --sync-frequency in KUBELET_KUBECONFIG_ARGS, the period for syncing container configuration, the default value is 1 min. What it means is that a container only notices an update to the configuration file it has mounted 1 min after the change.

2. Restart the Kubelet Service

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systemctl stop kubelet
systemctl daemon-reload
systemctl start kubelet

3. Check the Kubelet Process

Use the following command to see the relevant startup parameters

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ps -ef | grep kubelet