Error to connect websocket Kong Kubernetes

Kubernetes
#1

Hi all,
I am using kong and kubernetes and connect websocket outside cluster does’nt works.
I have problem to connect websocket: Socket.js:65 WebSocket connection to ‘wss://kstaging.admooh.com/companion/api/4259514d-5b53-4aa3-95c6-6a17f817dbdc’ failed:

I got connect directly in kubernetes service without use kong.

Kubernetes service yaml:

apiVersion: v1
kind: Service
metadata:
  name: companion-service
  namespace: services
spec:
  ports:
    - port: 443
      protocol: TCP
      targetPort: 3020
  selector:
    app.kubernetes.io/instance: companion
    app.kubernetes.io/name: companion

Kubernetes ingress:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  annotations:
    konghq.com/protocols: 'https'
    konghq.com/strip-path: 'false'
    kubernetes.io/ingress.class: kong
  name: companion-service
  namespace: services
spec:
  rules:
    - host: kstaging.admooh.com
      http:
        paths:
          - backend:
              service:
                name: companion-service
                port:
                  number: 443
            path: /companion
            pathType: ImplementationSpecific

Somebody can help me to configure kong in kubernetes to work websockets?

#2

Does it work if you send that request through the Kong proxy service inside the cluster? Normally nothing special is needed to handle WSS in the proxy configuration; it’s just like any other HTTPS route.

If it does work internally, is there an HTTP/L7 load balancer in front of the proxy service for external inbound traffic? That could interfere depending on what it supports and how it’s configured, so we usually recommend using a TCP/L4 load balancer (e.g. an NLB instead of an ALB).