NetworkPlugin cni failed to set up pod "xxxxx" network: failed to set bridge addr: "cni0" already has an IP address different from10.x.x.x - Error

TL;DR - recreate network

$ ip link set cni0 down$ brctl delbr cni0  

Or, as @ws_ suggested in comments - remove interfaces and restart k8s services:

ip link set cni0 down && ip link set flannel.1 down ip link delete cni0 && ip link delete flannel.1systemctl restart containerd && systemctl restart kubelet

Community solutions

It is a known issue

And there are some solutions to fix it.

Solution by filipenv is:

on master and slaves:

$ kubeadm reset$ systemctl stop kubelet$ systemctl stop docker$ rm -rf /var/lib/cni/$ rm -rf /var/lib/kubelet/*$ rm -rf /etc/cni/$ ifconfig cni0 down$ ifconfig flannel.1 down$ ifconfig docker0 down

you may need to manually umount filesystems from /var/lib/kubelet before calling rm on that dir)After doing that I started docker and kubelet back again and restarted the kubeadm process

aysark: and kubernetes-handbook in a recipe for Pod stuck in Waiting or ContainerCreating both recommend

$ ip link set cni0 down$ brctl delbr cni0  

Flannel's KB article

And there is an article in Flannel's KB: PKS Flannel network gets out of sync with docker bridge network (cni0)

WA1

WA1 is just like yours:

    bosh ssh -d <deployment_name> worker -c "sudo /var/vcap/bosh/bin/monit stop flanneld"    bosh ssh -d <deployment_name> worker -c "sudo rm /var/vcap/store/docker/docker/network/files/local-kv.db"    bosh ssh -d <deployment_name> worker -c "sudo /var/vcap/bosh/bin/monit restart all"

WA2

If WA1 didn't help, KB recommends:

    bosh ssh -d <deployment_name> worker -c "sudo /var/vcap/bosh/bin/monit stop flanneld"    bosh ssh -d <> worker -c "ifconfig | grep -A 1 flannel"    On a master node get access to etcd using the following KB     On a master node run `etcdctlv2 ls /coreos.com/network/subnets/`    Remove all the worker subnet leases from etcd by running `etcdctlv2 rm /coreos.com/network/subnets/<worker_subnet>;` for each of the worker subnets from point 2 above.    bosh ssh -d <deployment_name> worker -c "sudo /var/vcap/bosh/bin/monit restart flanneld"