kubernetes服务分配给节点辅助接口的外部IP

Question

I have a two node kubernetes cluster deployed on ec2. One of the nodes is attached with a secondary network interface as below.

NODE 1 --> eth0 (ip1).  
NODE 2 --> eth0 (ip2), eth1 (ip3)

We are creating a Load Balancer service with externalIPs as ip3 ,

apiVersion: v1
kind: Service
metadata:
  name: test-service
  namespace: test-namespace
spec:
  type: LoadBalancer
  selector:
    app: test-service
  ports:
  - protocol: TCP
    port: 12222
    targetPort: 12222
    name: media-dev
  - protocol: TCP
    port: 12223
    targetPort: 12223
    name: dev-test
  externalIPs:
  - ip3

But this doesn't work and we will not able to access ip3.
Please let me know if there is any what that I can stream traffic from secondary interface (ip3) to the pod.

Answer 1

Try to set kubelet on Node2 to use ip3 from eth1 by setting following flag:

--node-ip <ip3>

in

/etc/systemd/system/kubelet.service.d/10-kubeadm.conf

and then

systemctl daemon-reload
systemctl restart kubelet

More info about kubelet: https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/