Run the following command to Deploy guestbook using Knative.
$ knctl deploy \
--service guestbook \
--image svennam92/guestbook:v1
After a few seconds, it should say Succeeded. You can now access the application directly using the External IP address. First, get the external IP address with:
kubectl get svc -n istio-system istio-ingressgateway
You also need to know the domain name that Knative assigned to the Service we just deployed. Run the following command, and note the value for domain.
kubectl get ksvc guestbook
If this command doesn't work, wait a few seconds and try again.
You'll notice that the domain name is guestbook.default.example.com, but we don't actually own anything at example.com. You'll see how to update this to your own domain name later, but for now we can directly curl the external IP address for our cluster, and pass in a Host header:
curl -H 'Host: guestbook.default.example.com' {EXTERNAL_IP}
You should see some HTML output!
That's really all it takes to deploy an application with Knative! With one command, we get running pods, a service, a deployment, and a route. Next, let's fix our ingress so that we can actually use that route and access the application properly.