Other components

In this lab exercise, we'll deploy the rest of the sample application efficiently using the power of Kustomize. The following kustomization file shows how you can reference other kustomizations and deploy multiple components together:

~/environment/eks-workshop/base-application/kustomization.yaml

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
resources:
- rabbitmq
- catalog
- carts
- checkout
- assets
- orders
- ui
- other

tip

Notice that the catalog API is in this kustomization, didn't we already deploy it?

Because Kubernetes uses a declarative mechanism we can apply the manifests for the catalog API again and expect that because all of the resources are already created Kubernetes will take no action.

Apply this kustomization to our cluster to deploy the rest of the components:

~$kubectl apply -k ~/environment/eks-workshop/base-application

After this is complete we can use kubectl wait to make sure all the components have started before we proceed:

~$kubectl wait --for=condition=Ready --timeout=180s pods \

-l app.kubernetes.io/created-by=eks-workshop -A

We'll now have a Namespace for each of our application components:

~$kubectl get namespaces -l app.kubernetes.io/created-by=eks-workshop

NAME       STATUS   AGE

assets     Active   62s

carts      Active   62s

catalog    Active   7m17s

checkout   Active   62s

orders     Active   62s

other      Active   62s

rabbitmq   Active   62s

ui         Active   62s

We can also see all of the Deployments created for the components:

~$kubectl get deployment -l app.kubernetes.io/created-by=eks-workshop -A

NAMESPACE   NAME             READY   UP-TO-DATE   AVAILABLE   AGE

assets      assets           1/1     1            1           90s

carts       carts            1/1     1            1           90s

carts       carts-dynamodb   1/1     1            1           90s

catalog     catalog          1/1     1            1           7m46s

checkout    checkout         1/1     1            1           90s

checkout    checkout-redis   1/1     1            1           90s

orders      orders           1/1     1            1           90s

orders      orders-mysql     1/1     1            1           90s

ui          ui               1/1     1            1           90s

The sample application is now deployed and ready to provide a foundation for us to use in the rest of the labs in this workshop!

tip

If you want to understand more about Kustomize take a look at the optional module provided in this workshop.