calico/node is not ready: BIRD is not ready: BGP not established with xxxxx

问题如图

[root@k8s-master01 ~]# kubectl  get po -n kube-system
NAME                                       READY   STATUS     RESTARTS   AGE
calico-kube-controllers-5f6d4b864b-5wxb9   1/1     Running    18         6d23h
calico-node-2zllx                          0/1     Error      9          6d23h
calico-node-766vt                          0/1     Running    10         6d23h
calico-node-cqhzv                          1/1     Running    13         6d23h
calico-node-k88xw                          0/1     Init:0/2   0          6d23h
calico-node-xz5m2                          0/1     Error      7          6d23h

2.查看日志

[root@k8s-master01 ~]# kubectl describe pod calico-node-2zllx  --namespace kube-system
···
···
umber of node(s) with BGP peering established = 1
calico/node is not ready: BIRD is not ready: BGP not established with 192.168.0.109,192.168.0.110,192.168.0.111

3.Calico 问题排障

估计是没用发现实际真正的网卡

4.解决方法

调整calicao 网络插件的网卡发现机制，修改IP_AUTODETECTION_METHOD对应的value值。官方提供的yaml文件中，ip识别策略（IPDETECTMETHOD）没有配置，即默认为first-found，这会导致一个网络异常的ip作为nodeIP被注册，从而影响node-to-node mesh。我们可以修改成can-reach或者interface的策略，尝试连接某一个Ready的node的IP，以此选择出正确的IP。
*/

// calico.yaml 文件添加以下二行
            - name: IP_AUTODETECTION_METHOD
              value: "interface=eth.*"  # ens 根据实际网卡开头配置
 
 // 配置如下             
            - name: CLUSTER_TYPE
              value: "k8s,bgp"
            - name: IP_AUTODETECTION_METHOD
              value: "interface=eth.*"
              #或者 value: "interface=eth0" # 我选用的这个
            # Auto-detect the BGP IP address.
            - name: IP
              value: "autodetect"
            # Enable IPIP
            - name: CALICO_IPV4POOL_IPIP
              value: "Always"

6.重新在master上部署

[root@k8s-master01 calico]# kubectl apply -f calico-etcd.yaml # 根据自己的实际文件名

[root@k8s-master01 calico]# kubectl  get po -n kube-system
NAME                                       READY   STATUS    RESTARTS   AGE
calico-kube-controllers-5f6d4b864b-5wxb9   1/1     Running   18         7d
calico-node-ctkd7                          1/1     Running   0          15m
calico-node-q9gzv                          1/1     Running   0          15m
calico-node-rgqnj                          1/1     Running   0          15m
calico-node-sfwlh                          1/1     Running   0          15m
calico-node-tmq7l                          1/1     Running   0          15m