Kubernetes Dashboard & Ingress on Docker Desktop - kubernetes

Question

I am trying to access kubernetes dashboard on my local PC through Ingress. The steps I've done so far are:
Install Nginx Ingress by:
kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.44.0/deploy/static/provider/cloud/deploy.yaml
PS D:\dev\kubernetes-dashboard-ingress> kubectl get all -n ingress-nginx
NAME READY STATUS RESTARTS AGE
pod/ingress-nginx-admission-create-7rzdl 0/1 Completed 0 148m
pod/ingress-nginx-admission-patch-295pf 0/1 Completed 0 148m
pod/ingress-nginx-controller-7fc74cf778-jz6ts 1/1 Running 0 148m
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/ingress-nginx-controller LoadBalancer 10.106.183.115 localhost 80:30673/TCP,443:32591/TCP 148m
service/ingress-nginx-controller-admission ClusterIP 10.103.188.122 <none> 443/TCP 148m
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/ingress-nginx-controller 1/1 1 1 148m
NAME DESIRED CURRENT READY AGE
replicaset.apps/ingress-nginx-controller-7fc74cf778 1 1 1 148m
NAME COMPLETIONS DURATION AGE
job.batch/ingress-nginx-admission-create 1/1 16s 148m
job.batch/ingress-nginx-admission-patch 1/1 16s 148m
Install kubernetes dashboard:
kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.0/aio/deploy/recommended.yaml
When I inspect kubernetes dashboard namespace, I notice that the service is running on port 443:
PS D:\dev\kubernetes-dashboard-ingress> kubectl get service -n kubernetes-dashboard -o wide
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
dashboard-metrics-scraper ClusterIP 10.110.109.6 <none> 8000/TCP 135m k8s-app=dashboard-metrics-scraper
kubernetes-dashboard ClusterIP 10.110.230.166 <none> 443/TCP 135m k8s-app=kubernetes-dashboard
So I created Ingress rule:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: dashboard-ingress
namespace: kubernetes-dashboard
annotations:
kubernetes.io/ingress.class: "nginx"
nginx.ingress.kubernetes.io/ssl-passthrough: "true"
nginx.ingress.kubernetes.io/backend-protocol: "HTTPS"
spec:
rules:
- host: "my-dashboard.com"
http:
paths:
- pathType: Prefix
path: "/"
backend:
service:
name: kubernetes-dashboard
port:
number: 443
and after applying this rule:
PS D:\dev\kubernetes-dashboard-ingress> kubectl get ingress -n kubernetes-dashboard -o wide
Warning: extensions/v1beta1 Ingress is deprecated in v1.14+, unavailable in v1.22+; use networking.k8s.io/v1 Ingress
NAME CLASS HOSTS ADDRESS PORTS AGE
dashboard-ingress <none> my-dashboard.com localhost 80 121m
I just add the following entry in my windows host file:
127.0.0.1 my-dashboard.com
However, I am getting nothing when I tried to access the dashboard through my browser (http://my-dashboard.com). Have I missed anything?
I was following the tutorial here: https://www.youtube.com/watch?v=X48VuDVv0do. The tutorial was done using minikube - so the dashboard there was available on port 80. Whereas the one i installed directly from github above was available on port 443. Do I need to configure some certificate / secret? I noticed that a few stuffs were created in the Secret by kubernetes-dashboard:
PS D:\dev\kubernetes-dashboard-ingress> kubectl get secret -n kubernetes-dashboard -o wide
NAME TYPE DATA AGE
default-token-97skl kubernetes.io/service-account-token 3 140m
kubernetes-dashboard-certs Opaque 0 140m
kubernetes-dashboard-csrf Opaque 1 140m
kubernetes-dashboard-key-holder Opaque 2 140m
kubernetes-dashboard-token-rwgs4 kubernetes.io/service-account-token 3 140m
and if i tried to describe Ingress:
PS D:\dev\kubernetes-dashboard-ingress> kubectl describe ingress dashboard-ingress -n kubernetes-dashboard
Warning: extensions/v1beta1 Ingress is deprecated in v1.14+, unavailable in v1.22+; use networking.k8s.io/v1 Ingress
Name: dashboard-ingress
Namespace: kubernetes-dashboard
Address: localhost
Default backend: default-http-backend:80 (<error: endpoints "default-http-backend" not found>)
Rules:
Host Path Backends
---- ---- --------
my-dashboard.com
/ kubernetes-dashboard:443 (10.1.0.106:8443)
Annotations: kubernetes.io/ingress.class: nginx
nginx.ingress.kubernetes.io/backend-protocol: HTTPS
nginx.ingress.kubernetes.io/ssl-passthrough: true
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Sync 7m4s (x10 over 144m) nginx-ingress-controller Scheduled for sync
I know I can access the dashboard using kubectl proxy - but I would like to test out Ingress (learning it). Thank you in advance!
I'm running the following:
Docker Desktop 3.2.2 (61853)
Engine: 20.10.5
Compose: 1.28.5
Kubernetes: v1.19.7

Answer 1

Your service name seems to be wrong:
You listed your services:
PS D:\dev\kubernetes-dashboard-ingress> kubectl get service -n kubernetes-dashboard -o wide
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
dashboard-metrics-scraper ClusterIP 10.110.109.6 <none> 8000/TCP 135m k8s-app=dashboard-metrics-scraper
kubernetes-dashboard ClusterIP 10.110.230.166 <none> 443/TCP 135m k8s-app=kubernetes-dashboard
In your ingress:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: dashboard-ingress
namespace: kubernetes-dashboard
annotations:
nginx.ingress.kubernetes.io/ssl-passthrough: "true"
nginx.ingress.kubernetes.io/backend-protocol: "HTTPS"
spec:
rules:
- host: "my-dashboard.com"
http:
paths:
- pathType: Prefix
path: "/"
backend:
service:
name: my-dashboard # <<< This line should be kubernetes-dashboard
port:
number: 443

Answer 2

Ok. Figured out the issue. My request (in chrome) went through the corporate proxy, and that did not forward the request further to my kubernetes cluster. After adding 'my-dashboard.com' to the no proxy list, I can access it through browser.
Thank you thomas for the pointer !