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A Practical Guide to Kubernetes

Creating Ingress Resources Based on Paths

Explore how to create and manage Kubernetes Ingress resources that route requests based on URL paths. This lesson helps you understand annotations, path rules, and service configuration to enable external access through port 80, ensuring applications respond correctly via Ingress controllers.

We'll cover the following...

Defining an Ingress resource

We’ll try to make our go-demo-2-api Service available through port 80. We’ll do that by defining an Ingress resource with the rule to forward all requests with the path starting with /demo to the Service go-demo-2-api.

Looking into the definition

Let’s look at the Ingress’ YAML definition go-demo-2-ingress.yml:

YAML
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: go-demo-2
  annotations:
    kubernetes.io/ingress.class: "nginx"
    ingress.kubernetes.io/ssl-redirect: "false"
    nginx.ingress.kubernetes.io/ssl-redirect: "false"
spec:
  rules:
  - http:
      paths:
      - path: /demo
        pathType: ImplementationSpecific
        backend:
          service:
            name: go-demo-2-api
            port:
              number: 8080
  • Line 5: This time, metadata contains a field we haven’t used before. The annotations section allows us to provide additional information to the Ingress controller. As you’ll see soon, the Ingress API specification is concise and limited. That is done on
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