Set up Kubernetes Ingress Rules

Updated 6 months ago by Michael Cretzman

Route traffic using the Ingress rules defined in your Harness Kubernetes Service.

In this topic:

Before You Begin

A Harness Service is different from a Kubernetes service. A Harness Service includes the manifests and container used for deployment. A Kubernetes service enables applications running in a Kubernetes cluster to find and communicate with each other, and the outside world. To avoid confusion, a Harness Service is always capitalized in Harness documentation. A Kubernetes service is not.

Step 1: Add a Service Manifest

For Ingress Rules, you simply add your Kubernetes service and Ingress manifests to your Harness Service, and then refer to the service name in the Ingress manifest.

Here is the Kubernetes service manifest. Note the service name my-svc:

apiVersion: v1
kind: Service
metadata:
name: my-svc
spec:
ports:
- name: my-port
port: 8080
protocol: TCP
targetPort: my-container-port
selector:
app: my-deployment
type: ClusterIP

The service name my-svc will be referred to in the Ingress manifest.

Step 2: Add an Ingress Manifest

Add an Ingress manifest that refers to the service name. In our example, the service name is my-svc:

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: my-ingress
annotations:
kubernetes.io/ingress.class: "nginx"
spec:
rules:
- http:
paths:
- path: /my/path
backend:
serviceName: my-svc
servicePort: 8080

Notes

  • Using the values.yaml file and Go templating, you would simply add the service name and any other key values to the values.yaml file and then replace them in both manifests with the variable. For examples of using Go templating, see Use Go Templating in Kubernetes Manifests.


How did we do?