Kubernetes NGINX Ingress Controller 404 Not found / Object not found-CodePudding

I am taking a course in Udemy and I am new to the world of Kubernetes and I am trying to configure ingress nginx controller in Kubernetes but it returns 404 not found when i send a request at specified URL, it has been 10 days that I am trying to fix it, i've looked at similar questions but none of their answers are working for me. I am also using Skaffold to do build/deploy image on docker hub automatically when i change something in files.

My express app server:

app.get('/api/users/currentuser', (req, res) => {
  res.send('Hi there');
});

app.listen(3000, () => {
  console.log('[Auth] - Listening on port 3000');
});

ingress-srv.yaml

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: ingress-srv
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/use-regex: 'true'
spec:
  rules:
    - host: ticketing.com
      http:
        paths:
          - path: /api/users/?(.*)
            pathType: Prefix
            backend:
              service:
                name: auth-srv
                port:
                  number: 3000

auth-depl.yaml (Auth deployment & srv)

apiVersion: apps/v1
kind: Deployment
metadata:
  name: auth-depl
spec:
  replicas: 1
  selector:
    matchLabels:
      app: auth
  template:
    metadata:
      labels:
        app: auth
    spec:
      containers:
        - name: auth
          image: myusername/auth:latest
---
apiVersion: v1
kind: Service
metadata:
  name: auth-srv
spec:
  type: ClusterIP
  selector:
    app: auth
  ports:
    - name: auth
      protocol: TCP
      port: 3000
      targetPort: 3000

skaffold.yaml file:

apiVersion: skaffold/v2beta25
kind: Config
deploy:
  kubectl:
    manifests:
      - ./infra/k8s/*
build:
  local:
    push: false
  artifacts:
    - image: egzonkrs/auth
      context: auth
      docker:
        dockerfile: Dockerfile
      sync:
        manual:
          - src: 'src/**/*.ts'
            dest: .

Dockerfile:

FROM node:alpine

WORKDIR /app
COPY package.json .
RUN npm install
COPY . . 

CMD ["npm", "start"]

I also executed command from NGINX Ingress Controller docs:

kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.0.5/deploy/static/provider/cloud/deploy.yaml

I also changed hosts.file in the system: 127.0.0.1 ticketing.com

Logs:

kubectl get pods

NAME                         READY   STATUS    RESTARTS   AGE
auth-depl-5f89899d9f-wtc94   1/1     Running   0          6h33m

kubectl get svc

NAME         TYPE        CLUSTER-IP    EXTERNAL-IP   PORT(S)    AGE
auth-srv     ClusterIP   10.96.23.71   <none>        3000/TCP   23h
kubernetes   ClusterIP   10.96.0.1     <none>        443/TCP    25h

kubectl get pods --namespace=ingress-nginx

NAME                                        READY   STATUS      RESTARTS   AGE
ingress-nginx-admission-create-7fm56        0/1     Completed   0          23h
ingress-nginx-admission-patch-5vflr         0/1     Completed   1          23h
ingress-nginx-controller-5c8d66c76d-89zhp   1/1     Running     0          23h

kubectl get ing

NAME          CLASS    HOSTS           ADDRESS     PORTS   AGE
ingress-srv   <none>   ticketing.com   localhost   80      23h

kubectl describe ing ingress-srv

Name:             ingress-srv
Namespace:        default
Address:          localhost
Default backend:  default-http-backend:80 (<error: endpoints "default-http-backend" not found>)
Rules:
  Host           Path  Backends
  ----           ----  --------
  ticketing.com
                 /api/users/?(.*)   auth-srv:3000 (10.1.0.10:3000)
Annotations:     kubernetes.io/ingress.class: nginx
                 nginx.ingress.kubernetes.io/use-regex: true
Events:
  Type    Reason  Age                 From                      Message
  ----    ------  ----                ----                      -------
  Normal  Sync    22m (x18 over 23h)  nginx-ingress-controller  Scheduled for sync

Could there be a problem with the Windows IIS web server? since I previously configured something for another project, and in the screenshot above I see:

Requested URL      http://ticketing.com:80/api/users/currentuser
Physical Path      C:\inetpub\wwwroot\api\users\currentuser

Also the screenshot shows the port :80 at the requested URL but I have the server port 3000? when i request at https it returns:

502 Bad Gateway
nginx

also C:\inetpub\wwwroot is strange to me.

Any ideas would help me a lot with continuing the course.

CodePudding user response：

After a few days of research I finally solved the problem, the problem was with IIS Web Server which I had enabled when I was working on a project in ASP.NET core, I uninstalled it and the problem was solved.

How to uninstall IIS from Windows 10:

Go to Control Panel > Programs and Features
Click Turn Windows features on or off
Scroll down to Internet Information Services
Click on the square next to Internet Information Services so it becomes empty
Click OK and restart the PC (required).