k8s卸载calico的cni - Wed, Dec 16, 2020

k8s卸载calico的cni

1. 安装cni

1.1. Calico

ubeadm init --apiserver-advertise-address=192.168.1.118 --pod-network-cidr=192.168.0.0/16 --image-repository registry.cn-hangzhou.aliyuncs.com/google_containers

### deployment
kubectl create -f https://docs.projectcalico.org/manifests/tigera-operator.yaml
kubectl create -f https://docs.projectcalico.org/manifests/custom-resources.yaml

1.2. canal

ubeadm init --apiserver-advertise-address=192.168.1.118 --pod-network-cidr=192.168.0.0/16 --image-repository registry.cn-hangzhou.aliyuncs.com/google_containers

### deployment
kubectl apply -f https://docs.projectcalico.org/manifests/canal.yaml

2. 卸载calico

2.1. Calico

kubectl delete -f https://docs.projectcalico.org/manifests/tigera-operator.yaml
kubectl delete -f https://docs.projectcalico.org/manifests/custom-resources.yaml

2.2 canal

kubectl delete -f https://docs.projectcalico.org/manifests/canal.yaml

3. 系统配置修复

每个node下都会被配置系统文件，会导致奇怪的错误 清理/etc/cni/net.d/

# flannel
ifconfig flannel.1 down
ip link delete flannel.1
# calico
ifconfig vxlan.calico down
ip link delete vxlan.calico
# canal
ifconfig tunl0 down
ip link delete tunl0
rm -rf /var/lib/cni/
rm -f /etc/cni/net.d/*