# Understanding ingress-nginx **URL:** \ **Category:** General Discussions\ **Created:** [July 21, 2025, 7:19am UTC](https://discuss.kubernetes.io/t/understanding-ingress-nginx/32771 "2025-07-21T07:19:01Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![philkube](https://avatars.discourse-cdn.com/v4/letter/p/ebca7d/32.png) [@philkube](https://discuss.kubernetes.io/u/philkube)\ **Post date:** [July 21, 2025, 7:19am UTC](https://discuss.kubernetes.io/t/understanding-ingress-nginx/32771/1 "2025-07-21T07:19:01Z")
### Cluster information: Kubernetes version: 1.33.2 Host OS: Debian (VM) CNI and version: 0.27.1 (flannel 1.7.1) CRI and version: 1.33.0 ############### Hi, Sorry for my english, I’m french. I’m new to Kubernetes, which I learned on my own by following tutorials. I installed a cluster with 1 master and 2 workers on VMs for some web applications and mariaDB. I created some deployments, cronjobs, jobs, configmaps, secrets and services and everything works. My applications are accessible using my personal domain with specifics ports (ex: [my-domain.fr:1234](http://my-domain.fr:1234)). But now I would like to use ingress-nginx. My goal is to access my applications using [my-domain.fr](http://my-domain.fr) without specifying a port (ex: [app1.my-domain.fr](http://app1.my-domain.fr) for application1 with port 1234, [app2.my-domain.fr](http://app2.my-domain.fr) for application2 with port 2345, etc…). For trying to understand and put in place ingress-nginx I’ve found a lot of tutorials, some with simple example, but nothing work even by following the tutorials to the letter. Thank’s for your help and advice. ---
**Author:** ![MilesWeb](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.kubernetes.io/milesweb/32/17394_2.png) [@MilesWeb](https://discuss.kubernetes.io/u/MilesWeb)\ **Post date:** [July 22, 2025, 11:20am UTC](https://discuss.kubernetes.io/t/understanding-ingress-nginx/32771/2 "2025-07-22T11:20:44Z")
You’re on the right track to using Ingress-Nginx! Great tool for managing external access to your Kubernetes services. Ingress-Nginx acts as an edge router or reverse proxy for your Kubernetes cluster. Instead of exposing individual service ports, you expose a single entry point (typically ports 80 for HTTP and 443 for HTTPS) through Ingress-Nginx. When a request comes in, Ingress-Nginx inspects the hostname (e.g., `app1.my-domain.fr`) and the path, then routes the request to the appropriate internal Kubernetes service. ---
**Author:** ![philkube](https://avatars.discourse-cdn.com/v4/letter/p/ebca7d/32.png) [@philkube](https://discuss.kubernetes.io/u/philkube)\ **Post date:** [July 22, 2025, 11:53am UTC](https://discuss.kubernetes.io/t/understanding-ingress-nginx/32771/3 "2025-07-22T11:53:42Z")
That’s what I understood. But when I try to put in place ingress-nginx using tutorials it doesn’t work. Actually I use a reverse proxy on one of my physical servers (Raspberry) to route the request. It works but I would prefer use ingress-nginx instead. I will try another time, perhaps I missed or forgot something. ---
**Author:** ![philkube](https://avatars.discourse-cdn.com/v4/letter/p/ebca7d/32.png) [@philkube](https://discuss.kubernetes.io/u/philkube)\ **Post date:** [July 22, 2025, 6:56pm UTC](https://discuss.kubernetes.io/t/understanding-ingress-nginx/32771/4 "2025-07-22T18:56:25Z")
Here are 2 tests that I performed. - Test A: 1 - Created 2 deployments with apache2 installed and working on HTTP (modified basic index.html page on both to know where I end up): test-ingress-app1 & test-ingress-app2 2 - Creation of 2 NodePort type services, 1 for each deployment ==\> Accessing http://\: on each of the 2 nodeports takes me to the right place - Test B: (use URL [test.my-domain.fr](http://test.my-domain.fr) created at my domain name provider) 1 - Modification of HTTP routing on the internet box (to the master instead of the physical reverse proxy) 2 - Creation of 2 ClusterIP type services for each deployment 3 - Creating an ingress with rules: > host: « [test.my-domain.fr](http://test.my-domain.fr) » > http: > paths: > path: / > pathType: Prefix > backend: > service: > name: test-ingress-app1 > port: > number: 80 ==\> Access [http://test.my-domain.fr](http://test.my-domain.fr) KO