flannel完全卸载

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# k8s部署的
kubectl delete daemonset -n kube-system kube-flannel

# 二进制部署的
systemctl stop flanneld
rm -f /etc/systemd/system/flanneld.service
rm -f /usr/local/bin/flanneld

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# cni
ifconfig cni0 down
ip link delete cni0
rm -rf /var/lib/cni/
rm -f /etc/cni/net.d/*

# flannel
ifconfig flannel.1 down
ip link delete flannel.1
rm -fr /var/run/flannel/
rm -fr /etc/kube-flannel

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route del -net 10.244.x.x/24 gw xxx.xxx.xxx.xxx

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systemctl restart kubelet