Applying our learnings to a sample application

In this section, we will apply the learnings of the book – specifically, the knowledge from Chapters 4 to 6 – to our Online Boutique application. Let’s dive right in!

Enabling Service Mesh for the sample application

Now that OPA Gatekeeper is in place with all the constraints we want it to enforce on deployments, it’s time to deploy a sample application. We will first start with un-deploying the online-boutique application and redeploying with istio-injection enabled at the namespace level.

Undeploy the Online Boutique application by deleting the online-boutique namespace:

% kubectl delete ns online-boutique
namespace " online-boutique " deleted

Once undeployed, let’s modify the namespace and add an istio-injection:enabled label and redeploy the application. The updated namespace configuration will be as follows:

apiVersion: v1
kind: Namespace
metadata:
  name: online...