Accessing Varnish Controller

Introduction

Accessing the Varnish Controller from outside the Kubernetes cluster can be achieved by port-forwarding or exposing the Varnish Controller UI via Ingress. Port forwarding is suitable for intermittent access to the Varnish Controller UI, while Ingress allows for more permanent access but requires an Ingress controller to be set up in the cluster.

Using Port Forwarding

To establish a port-forwarding, run the following command:

$ kubectl port-forward svc/varnish-controller-ui 8888:80

Once the port forwarding is set up, the Varnish Controller UI can be accessed at http://localhost:8888/

Using Ingress

To configure Varnish Controller with Ingress, apply the following configuration:

ui:
  enabled: true
  ingress:
    enabled: true
    hosts:
      - host: varnish-controller.example.com
        paths: []

By default, Kubernetes only exposes the service via an HTTP port (80). To enable HTTPS, install a TLS certificate as a secret and apply the following configuration:

ui:
  ingress:
    tls:
      - hosts:
          - varnish-controller.example.com
        secretName: varnish-controller-tls

It is also necessary to update the DNS server to point varnish-controller.example.com to the IP address of the cluster’s Ingress. The Ingress IP address can be retrieved by running the following command:

$ kubectl get ingress