06 - Knative

Let's use a local cluster provisioned with kind and the Knative quickstart to set up Knative.

kn quickstart kind

Basic

Navigate to the basic folder.

cd basic/book-service

Then, you can containerize and publish the application image to a container registry. I have already done that and the image is available on my GitHub Container Registry: ghcr.io/thomasvitale/devex/book-service-arm64. You can use it to deploy the application on Knative from a YAML manifest. Update config/knative.yml with your own image, then run the following command.

kubectl apply -f config

You can retrieve information about the deployment, including the URL where to access the application, with the following command.

kubectl get ksvc

The result is something like the following.

NAME           URL                                              LATESTCREATED        LATESTREADY          READY
book-service   http://book-service.default.127.0.0.1.sslip.io   book-service-00001   book-service-00001   True

Finally, call the application as follows.

http book-service.default.127.0.0.1.sslip.io

Clean-up

When you're done, delete the cluster as follows.

kind delete cluster --name knative