How to assign IP address to nginx Ingress resource in k8s? - nginx

Question

I want to install nginx-controller in my Kubernetes cluster. I setup my master node at one server, and worker node at another server. I am using Ubuntu 20.04.
I followed the link (https://github.com/kubernetes/ingress-nginx/blob/main/deploy/static/provider/cloud/1.23/deploy.yaml) and use 'kubectl apply -f file_name.yaml' to install the controller.
The controller pod is running:
NAME READY STATUS RESTARTS AGE
ingress-nginx-controller-c57bb9674-p2z9d 1/1 Running 0 70s
Now I want to create an Ingress resource. I used this yaml file:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ingress-hello
namespace: ingress-nginx
annotations:
kubernetes.io/ingress.class: nginx
spec:
rules:
- http:
paths:
- path: /hello
pathType: Exact
backend:
service:
name: ingress-hello
port:
number: 80
However, when I applied this yaml file, and use 'kubectl get ingress -n ingress-nginx', I saw:
NAME CLASS HOSTS ADDRESS PORTS AGE
ingress-hello <none> * 80 24s
I noticed that the address for this Ingress resource is empty.
I am just wondering is it possible to assign an IP address to it? Any method/ setting to assign the address?
Thanks.

Answer 1

You can access to your service by http://localhost:80/hello, and if you wanan specify a custom host you need to modify your ingnx file.
This is an example:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ingress-hello
namespace: ingress-nginx
annotations:
kubernetes.io/ingress.class: nginx
spec:
rules:
- host: your_host
http:
paths:
- path: /hello
pathType: Exact
backend:
service:
name: ingress-hello
port:
number: 80
and you need to open your hosts files in your /system32/etc/hosts directory and add your customized host, and then your service will be accessible through
http://your_host:80/hello