First I start Kubernetes using Flannel with 10.244.0.0.
Then I reset all and restart with 10.84.0.0.
However, the interface flannel.1 still is 10.244.1.0
That's how I clean up:
kubeadm reset
systemctl stop kubelet
systemctl stop docker
rm -rf /var/lib/cni/
rm -rf /var/lib/kubelet/*
rm -rf /run/flannel
rm -rf /etc/cni/
ifconfig cni0 down
brctl delbr cni0
ifconfig flannel.1 down
systemctl start docker
Am I missing something in the reset?
In the original commands:
brctl delbr cni0
# deletes the cni0 interfaceBut the ifconfig flannel.1 down did not remove the interface. Thus:
ip link delete flannel.1
# deletes the flannel.1 interface
# also, 'ip link delete cni0' was unnecessary since the brctl command deleted the linkBecause your ip link have the old record
look by
ip link you can see the record, and if you want to clean the record of old flannel and cni
please try
ip link delete cni0 ip link delete flannel.1