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# 1. 停止 kubelet
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systemctl stop kubelet
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# 2. 拷贝数据到新路径（以下文件必须保留在原路径，不要移动）
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#    - /var/lib/kubelet/config.yaml
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#    - /var/lib/kubelet/kubeadm-flags.env
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#    - /var/lib/kubelet/pki
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#    - /var/lib/kubelet/device-plugins
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mkdir -p /app/kubelet
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cp -rf /var/lib/kubelet/pods /app/kubelet/
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cp -rf /var/lib/kubelet/pod-resources /app/kubelet/
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mv /var/lib/kubelet/pods{,.old}
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mv /var/lib/kubelet/pod-resources{,.old}
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# 3. 添加 root-dir 参数
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# CentOS/RHEL: /etc/sysconfig/kubelet
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# Ubuntu/Debian: /etc/default/kubelet
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echo 'KUBELET_EXTRA_ARGS="--root-dir=/app/kubelet"' >> /etc/default/kubelet
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# 4. 重启 kubelet
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systemctl daemon-reload && systemctl restart kubelet
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systemctl status kubelet
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# 5. 确认工作目录已生效
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ps -aux | grep kubelet | grep root-dir
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# 6. 清理旧目录（可选）
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rm -rf /var/lib/kubelet/pods.old /var/lib/kubelet/pod-resources.old

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# 1. 停止 kubelet
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systemctl stop kubelet
3

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# 2. 拷贝数据到新路径
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mkdir -p /data/kubelet
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cp -rf /var/lib/kubelet/. /data/kubelet
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mv /var/lib/kubelet /var/lib/kubelet.old
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# 3. 创建软链
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ln -s /data/kubelet /var/lib/kubelet
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# 4. 启动 kubelet
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systemctl daemon-reload && systemctl restart kubelet
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# 5. 清理旧目录（可选）
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rm -rf /var/lib/kubelet.old

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apiVersion: kubeadm.k8s.io/v1beta3
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kind: InitConfiguration
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nodeRegistration:
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  kubeletExtraArgs:
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    root-dir: "/data/kubelet"