"cni0" already has an IP address different from 10.244.2.1/24。 Error while adding to cni network: failed to allocate for range 0: no IP addresses available in range set: 10.244.2.1-10.244.2.254

"cni0" already has an IP address different from 10.244.2.1/24。 

Error while adding to cni network: failed to allocate for range 0: no IP addresses available in range set: 10.244.2.1-10.244.2.254


解决:

干掉cni-flannel,停运集群.清理环境.
    1. rm -rf /var/lib/cni/flannel/* && rm -rf /var/lib/cni/networks/cbr0/* && ip link delete cni0  
    2. rm -rf /var/lib/cni/networks/cni0/*
    3. kubeadm reset
    4. kubeadm join
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原文地址：https://www.cnblogs.com/jiuchongxiao/p/8942080.html