cannot create an external load balancer with mix protocols

[Aditya Patawari]

Hello,

I am working on a SIP app that uses TCP and UDP ports. I create a cluster in GKE and the use expose to open the ports to outside world. Once I do that, I notice that the even the UDP ports are coming up as TCP ports. 

$ kubectl expose rc restcomm-core-controller --type=LoadBalancer

service "restcomm-core-controller" exposed

aditya@21:42:57:~/git-repos/restcomm/Restcomm-Docker/kubernetes$ kubectl get svc

NAME                       CLUSTER-IP    EXTERNAL-IP       PORT(S)                                                                                                                  AGE

kubernetes                 10.23.240.1   <none>            443/TCP                                                                                                                  1h

restcomm-core-controller   10.23.251.4   104.199.142.192   80/TCP,443/TCP,9990/TCP,5060/TCP,5060/TCP,5061/TCP,5062/TCP,5063/TCP,65000/TCP,65001/TCP,65002/TCP,65003/TCP,65004/TCP   1m

I tried manually creating a service and using a yml file but it resulted in an error which says "cannot create an external load balancer with mix protocols". Is there any way I can create a load balancer with some tcp and some udp ports?

The relevant kubernetes replication controller is present at https://github.com/adimania/Restcomm-Docker/tree/master/kubernetes

[Prashanth B]

On Tuesday, April 5, 2016 at 4:20:33 AM UTC-7, Aditya Patawari wrote:

Hello,

I am working on a SIP app that uses TCP and UDP ports. I create a cluster in GKE and the use expose to open the ports to outside world. Once I do that, I notice that the even the UDP ports are coming up as TCP ports. 

$ kubectl expose rc restcomm-core-controller --type=LoadBalancer

service "restcomm-core-controller" exposed

aditya@21:42:57:~/git-repos/restcomm/Restcomm-Docker/kubernetes$ kubectl get svc

NAME                       CLUSTER-IP    EXTERNAL-IP       PORT(S)                                                                                                                  AGE

kubernetes                 10.23.240.1   <none>            443/TCP                                                                                                                  1h

restcomm-core-controller   10.23.251.4   104.199.142.192   80/TCP,443/TCP,9990/TCP,5060/TCP,5060/TCP,5061/TCP,5062/TCP,5063/TCP,65000/TCP,65001/TCP,65002/TCP,65003/TCP,65004/TCP   1m

 

This is a bug https://github.com/kubernetes/kubernetes/issues/23882

 

I tried manually creating a service and using a yml file but it resulted in an error which says "cannot create an external load balancer with mix protocols". Is there any way I can create a load balancer with some tcp and some udp ports?

The relevant kubernetes replication controller is present at https://github.com/adimania/Restcomm-Docker/tree/master/kubernetes

This is more like a feature request: https://github.com/kubernetes/kubernetes/issues/23880, it should be possible to support mixed protocols on a single static ip. I think it's just one of those things we never got to because not enough people asked for it.