# 可以看到node4的INTERNAL-IP不正确
[root@master ~]# kubectl get nodes -owide
NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
master Ready control-plane 17m v1.27.1 172.16.0.2 <none> Rocky Linux 8.6 (Green Obsidian) 4.18.0-372.9.1.el8.x86_64 containerd://1.6.20
node4 Ready <none> 15m v1.27.1 10.0.40.7 <none> CentOS Stream 8 4.18.0-358.el8.x86_64 containerd://1.6.21
#查看kubelet配置文件,可以看到额外参数是配置在/etc/sysconfig/kubelet这里
[root@node4 ~]# cat /usr/lib/systemd/system/kubelet.service.d/10-kubeadm.conf
# Note: This dropin only works with kubeadm and kubelet v1.11+
[Service]
Environment="KUBELET_KUBECONFIG_ARGS=--bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf --kubeconfig=/etc/kubernetes/kubelet.conf"
Environment="KUBELET_CONFIG_ARGS=--config=/var/lib/kubelet/config.yaml"
# This is a file that "kubeadm init" and "kubeadm join" generates at runtime, populating the KUBELET_KUBEADM_ARGS variable dynamically
EnvironmentFile=-/var/lib/kubelet/kubeadm-flags.env
# This is a file that the user can use for overrides of the kubelet args as a last resort. Preferably, the user should use
# the .NodeRegistration.KubeletExtraArgs object in the configuration files instead. KUBELET_EXTRA_ARGS should be sourced from this file.
# 在下面的文件中指定ip
EnvironmentFile=-/etc/sysconfig/kubelet
ExecStart=
ExecStart=/usr/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_KUBEADM_ARGS $KUBELET_EXTRA_ARGS
修改/etc/sysconfig/kubelet文件，内容如下
# 修改INTERNAL-IP为本机指定ip
KUBELET_EXTRA_ARGS="--node-ip=172.16.0.3"
# 重启kubelet
systemctl restart kubelet
