How to config kong ingress controller for proxy websoket request

[swift1911]

Summary

SUMMARY_GOES_HERE

Kong Ingress controller version
0.9.1

Kubernetes version

Client Version: version.Info{Major:"1", Minor:"13", GitVersion:"v1.13.1", GitCommit:"eec55b9ba98609a46fee712359c7b5b365bdd920", GitTreeState:"clean", BuildDate:"2018-12-13T10:39:04Z", GoVersion:"go1.11.2", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"11", GitVersion:"v1.11.10", GitCommit:"7a578febe155a7366767abce40d8a16795a96371", GitTreeState:"clean", BuildDate:"2019-05-01T04:05:01Z", GoVersion:"go1.10.8", Compiler:"gc", Platform:"linux/amd64"}
paste kubectl version output

What happened

I want to use kong to proxy websocket request to my backend service.But i don't find the solution from the document.The following is my config of Ingresss.

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: websocket-ingress
spec:
  rules:
  - host: xxx.xxx.org
    http:
      paths:
      - backend:
          serviceName: websocket
          servicePort: 8080
        path: /

But it's error for testing 'error: Unexpected server response: 101' , it seem that the header 'Connection: Upgrade' my not be applied to the proxy.
Is there any solution for websocket?

[hbagdi]

What is the version of Kong?

error: Unexpected server response: 101

And where do you get this error from?

[swift1911]

What is the version of Kong?
Kong community 2.1.2

error: Unexpected server response: 101

And where do you get this error from?
I have used wscat tool https://www.npmjs.com/package/wscat to make connection to the server

[hbagdi]

@gszr Any idea?

[phamquyhai]

Same me,
I need add a config to support web socket, but not found :(
nginx.conf

    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";

[hbagdi]

ping @bungle @gszr

[fuhrmannd]

Is there any update or solution here? I am struggling with the same problem :(
Help would be really appreciated! @hbagdi @phamquyhai @bungle @gszr
Best regards,
Daniel

[w564791]

Same me,
I need add a config to support web socket, but not found :(
nginx.conf

    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";

me too

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[myvodx]

It's related #995

It works for me. Just need to update the ingress annotations as bellow.

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  # ... other properties
  annotations:
    konghq.com/headers.Connection: "Upgrade"
    konghq.com/headers.Upgrade: "WebSocket"
   ...

See more information:

• https://docs.konghq.com/gateway-oss/2.2.x/proxy/#proxy-websocket-traffic
• https://docs.konghq.com/kubernetes-ingress-controller/latest/references/annotations/#konghqcomheaders