Kubernetes in Practice/

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Defining Rules per Host

Defining Rules per Host

Learn how we can serve our services in different hosts.

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Serving services in different hosts

So that’s nice! Now we can direct requests to the service we want based on the path we receive, such as / to nginx, /hello to hellok8s.

In practice, though, we usually will want to serve our services in different hosts. For example, we could want to serve nginx in http://nginx.example.com and hellok8s in http://hello.example.com.

Let’s see how we can change this Ingress to do that.

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: hello-ingress
  annotations:
    # We are defining this annotation to prevent nginx
    # from redirecting requests to `https` for now
    nginx.ingress.kubernetes.io/ssl-redirect: "false"
spec:
  rules:
    - host: nginx.local.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: nginx-svc
                port:
                  number: 1234
    - host: hello.local.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: hellok8s-svc
                port:
                  number: 4567

It’s pretty much the same manifest with two changes:

  • Instead of
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