getting not found: NGINX Ingress - docker

Question

I am trying to learn .NET Microservice. I have been following a great tutorial on Youtube (Time: 4:44:55, Adding An API Gateway). Everything worked well until NGINX Ingress came into the picture. I pasted the same YAML file from the GitHub account of the trainer I doubled checked all the things but couldn't find anything:
I can see all the pods and services are working fine:
I updated my host file.
What did I miss?
URL, I am using: http://acme.com/api/platforms/
Error: HTTP Error 404. The requested resource is not found.
The output of the Ingress YAML:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
annotations:
kubectl.kubernetes.io/last-applied-configuration: |
{"apiVersion":"networking.k8s.io/v1","kind":"Ingress","metadata":{"annotations":{"kubernetes.io/ingress.class":"nginx","nginx.ingress.kubernetes.io/use-regex":"true"},"name":"ingress-srv","namespace":"default"},"spec":{"rules":[{"host":"acme.com","http":{"paths":[{"backend":{"service":{"name":"platforms-clusterip-srv","port":{"number":80}}},"path":"/api/platforms","pathType":"Prefix"},{"backend":{"service":{"name":"commands-clusterip-srv","port":{"number":80}}},"path":"/api/c/platforms","pathType":"Prefix"}]}}]}}
kubernetes.io/ingress.class: nginx
nginx.ingress.kubernetes.io/use-regex: "true"
creationTimestamp: "2021-09-18T00:12:41Z"
generation: 1
name: ingress-srv
namespace: default
resourceVersion: "2274742"
uid: a7376202-8b1b-4f1a-a42f-08de5f602192
spec:
rules:
- host: acme.com
http:
paths:
- backend:
service:
name: platforms-clusterip-srv
port:
number: 80
path: /api/platforms
pathType: Prefix
- backend:
service:
name: commands-clusterip-srv
port:
number: 80
path: /api/c/platforms
pathType: Prefix
status:
loadBalancer:
ingress:
- hostname: localhost
Services:
UPDATE: Tried below commands and got some new information:
UPDATE: Result of
Kubectl get pods --namespace=ingress-nginx

Answer 1

Try removing the regex annotation from th ingress
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
annotations:
kubernetes.io/ingress.class: nginx
name: ingress-srv
namespace: default
spec:
rules:
- host: acme.com
http:
paths:
- backend:
service:
name: platforms-clusterip-srv
port:
number: 80
path: /api/platforms
pathType: Prefix
- backend:
service:
name: commands-clusterip-srv
port:
number: 80
path: /api/c/platforms
pathType: Prefix
or just try this nginx.ingress.kubernetes.io/rewrite-target: /
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: minimal-ingress
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /
spec:
rules:
- host: acme.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: commands-clusterip-srv
port:
number: 80
in above ingress, all requests will go to service commands-clusterip-srv so from browser side you pass anything either /api or /api/c ingress will route the traffic to that service if your host is acme.com
Error 404 clearly means there is some issue with your Nginx configuration path is not matching or host issue, Nginx not able to find upstream or target so it throws 404.
Update
Try adding IP and entry into the host file for
192.168.1.28 acme.com
i am not sure you have used the IP POD to curl ideally you should me using the acme.com as you can to access the data.
also hope you service, deployment and ingress are in same namespace.

Answer 2

First of all, Thank you Harsh for your precious time. I tried all the things but no error was found.
It was really a miracle that I am able to resolve it issue on HTTPS. I am able to access "https://acme.com/api/platforms". But still, HTTP is giving me the same error. However, I am fine with HTTPS