Use Nginx Ingress Controller

After installing the nginx Ingress Controller, create an Ingress object that defines how incoming requests are routed to a Service.

1. Create a file named ingress.yaml with the following content:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: example-ingress
  namespace: default
spec:
  ingressClassName: nginx
  rules:
    - http:
        paths:
          - pathType: Prefix
            path: /
            backend:
              service:
                name: example-service
                port:
                  number: 80

The manifest defines a single routing rule for one Service. Replace the example values with values for the target service:

Field	Description
name	Name of the Ingress object
namespace	Namespace where the target Service runs
ingressClassName	Name of the IngressClass — nginx for the nginx controller
path	URL path prefix to match incoming requests
service.name	Name of the Service to route traffic to
service.port.number	Port exposed by the target Service that receives incoming requests

2. Apply the manifest:

kubectl apply -f ingress.yaml

Expected output:

ingress.networking.k8s.io/example-ingress created

The Ingress object is now active and the nginx Ingress Controller begins routing requests according to the configured rules.