How to configure an endpoint on AKS ingress controller (ngnix)?

Question

Attempting to configure a 'dummy' endpoint (in the future will be a valid endpoint but the dummy is just a placeholder for now), on the AKS ingress controller. What would be the ideal way to accomplish that? Thanks in advance.

Answer 1

@Be The Code , Thank you for your question. You can make use of the NGINX Ingress default backend. The default backend is a service which handles all URL paths and hosts the nginx controller doesn't understand (i.e., all the requests that are not mapped with an Ingress).

Basically a default backend exposes two URLs:

/healthz that returns 200  
/ that returns 404  

This blog post details how you can customize your NGINX Ingress default backend.

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However, if you want a specific dummy backend application to be available on a specific path using NGINX Ingress, you can simply create a Deployment with the dummy application's container image, expose it using a Service and mention the Service in spec.rules[].http.paths[].backend.service.name of your Ingress resource.

For example,

1. Create a Dockerfile with the following content:

   FROM nginx  
   

   EXPOSE 80
   RUN echo "This is a dummy website" > /usr/share/nginx/html/index.html
2. Build the container image using docker build -t <your-repository>/<image-name>:<tag> /path/to/folder/with/Dockerfile
3. Push the container image to your repository using docker push <your-repository>/<image-name>:<tag>
4. Create a Deployment using the image with kubectl create deploy $DeploymentName --image <your-repository>/<image-name>:<tag> -n <namespace>
5. Expose the Deployment using kubectl expose deploy $DeploymentName --name $ServiceName --port 80
6. Add the following under spec.rules of your Ingress resource.

       - http:  
        paths:  
        - path: <your-ingress-path>  
          pathType: Prefix  
          backend:  
            service:  
              name: $ServiceName  
              port:  
                number: 80  
   

   When you have your final Service later, you can simply change $ServiceName with the desired Service name and the port.number with the appropriate value, using kubectl edit ingress.

For more information Kubernetes Ingress please check here.

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Hope this helps.

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