ls /etc/cni/net.d
查看CNI插件，可以得知使用的是flannel
cat /etc/cni/net.d/10-flannel.conflist
| Code Block |
|---|
{
"name": "cbr0",
"cniVersion": "0.3.1",
"plugins": [
{
"type": "flannel",
"delegate": {
"hairpinMode": true,
"isDefaultGateway": true
}
},
{
"type": "portmap",
"capabilities": {
"portMappings": true
}
}
]
} |
如果是calico则显示
cat /etc/cni/net.d/10-calico.conflist
| Code Block |
|---|
{
"name": "k8s-pod-network",
"cniVersion": "0.3.1",
"plugins": [
{
"type": "calico",
"log_level": "info",
"log_file_path": "/var/log/calico/cni/cni.log",
"datastore_type": "kubernetes",
"nodename": "k8s-develop-master-1",
"mtu": 1440,
"ipam": {
"type": "calico-ipam"
},
"policy": {
"type": "k8s"
},
"kubernetes": {
"kubeconfig": "/etc/cni/net.d/calico-kubeconfig"
}
},
{
"type": "portmap",
"snat": true,
"capabilities": {"portMappings": true}
},
{
"type": "bandwidth",
"capabilities": {"bandwidth": true}
}
]
} |
删除flannel的pod
使用一开始创建pod时同样的yaml文件
| Code Block |
|---|
kubectl delete -f https://zhengyu1992.cn/file/deployment/kubeadm/flannel-1.1.2.yaml |
在集群各节点清理flannel网络的残留文件
| Code Block |
|---|
ifconfig cni0 down
ip link delete cni0
ifconfig flannel.1 down
ip link delete flannel.1
rm -rf /var/lib/cni
rm -rf /etc/cni/net.d |
部署calico3.25
| Code Block |
|---|
wget --no-check-certificate https://projectcalico.docs.tigera.io/archive/v3.25/manifests/calico.yaml
##上面的镜像地址在国外拉去不到，我把一些镜像拉去下来传到了阿里云
kubectl create -f https://zhengyu1992.cn/file/deployment/kubeadm/calico-3.2.5.yaml |
官方最新版:
calico官方文档：
https://docs.tigera.io/calico/latest/getting-started/kubernetes/quickstart
利用operator部署3.26.3
| Code Block |
|---|
kubectl create -f https://raw.githubusercontent.com/projectcalico/calico/v3.26.3/manifests/tigera-operator.yaml
kubectl create -f https://raw.githubusercontent.com/projectcalico/calico/v3.26.3/manifests/custom-resources.yaml |