Trouble running code-server on Digital Ocean kubernetes

[aleleba]

• code-server version:
  v2
• OS Version:
  Kubernetes DO 1.16.6-do.0

Description

I'm having trouble running code-server on Digital Ocean kubernetes. The problem seems to be with websokets. In the Javasript console I get this error: ERR [remote-connection] [Management] [ee9c0…] [initial] [p-lao.tk:80] socketFactory.connect () failed. Error: Error: WebSocket close with status code 1006

ERR Assertion Failed: argument is undefined or null: Error: Assertion Failed: argument is undefined or null

Please help me solve this error.

First of all, Thanks

My YAML File

apiVersion: v1
kind: Namespace
metadata:
  name: code-server
---
apiVersion: v1
kind: Service
metadata:
 name: code-server
 namespace: code-server
spec:
 ports:
 - name: code-server-main
   port: 80
   targetPort: 8080
   name: https
   protocol: TCP
 selector:
   app: code-server
 type: ClusterIP
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: code-server
  name: code-server
  namespace: code-server
spec:
  selector:
    matchLabels:
      app: code-server
  replicas: 1
  template:
    metadata:
      labels:
        app: code-server
    spec:
      containers:
      - image: codercom/code-server:v2
        imagePullPolicy: Always
        name: code-server
        env:
        - name: PASSWORD
          value: "password"
        ports:
        - containerPort: 8080
          name: https
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: ingress
  namespace: code-server
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - host: p-lao.tk
    http:
      paths:
      - path: /
        backend:
          serviceName: code-server
          servicePort: 80

[nhooyr]

1006 means the websocket cannot connect. Are you using some sort of proxy that doesn't allow WebSockets to go through?

[aleleba]

Thank to respond @nhooyr, I am using Ingress Controller for proxy the trafic. And Cert-Manager to get SSL Certificate

[aleleba]

My YAML File

apiVersion: v1
kind: Namespace
metadata:
  name: code-server
---
apiVersion: v1
kind: Service
metadata:
 name: code-server
 namespace: code-server
spec:
 ports:
 - name: code-server-main
   port: 80
   targetPort: 8080
   name: https
   protocol: TCP
 selector:
   app: code-server
 type: ClusterIP
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: code-server
  name: code-server
  namespace: code-server
spec:
  selector:
    matchLabels:
      app: code-server
  replicas: 1
  template:
    metadata:
      labels:
        app: code-server
    spec:
      containers:
      - image: codercom/code-server:v2
        imagePullPolicy: Always
        name: code-server
        env:
        - name: PASSWORD
          value: "password"
        ports:
        - containerPort: 8080
          name: https
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: ingress
  namespace: code-server
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - host: p-lao.tk
    http:
      paths:
      - path: /
        backend:
          serviceName: code-server
          servicePort: 80

[aleleba]

My YAML Exposes Ingress from a Load Balancer

apiVersion: v1
kind: Service
metadata:
  name: nginx-ingress
  namespace: nginx-ingress
spec:
  type: LoadBalancer
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
      name: http
    - protocol: TCP
      port: 443
      targetPort: 443
      name: https
  selector:
    app: nginx-ingress

[aleleba]

I have solved the problem. In case someone has the same problem. In my Ingress.yaml I had to add an annotation to allow connections to websockets.
The annotation I add to ingress.yaml:

annotations:
    nginx.org/websocket-services: "serviceName"

My YAML Ingress:

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: ingress
  namespace: code-server
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/rewrite-target: /
    nginx.org/websocket-services: "code-server"
spec:
  rules:
  - host: p-lao.tk
    http:
      paths:
      - path: /
        backend:
          serviceName: code-server
          servicePort: 80