Deploy Workloads

Now, let's proceed with deploying a workload to test our service mesh.

Configure our project for the service mesh#

First, let's create a project (namespace) for us to deploy our workload into. To do so, run the following command:
```
oc new-project bookinfo
```
Next, let's label that project (namespace) to enable the service mesh injection for all applications in the project.
```
oc label namespace bookinfo istio-injection=enabled
```
Even though we've enabled service mesh injection in the project, we also need to add our project (namespace) to the ServiceMeshMemberRoll, which limits the scope of the service mesh control plane to only projects in the member roll. To add the project to the ServiceMeshMemberRoll, run the following command:
```
cat << EOF | oc apply -f -
apiVersion: maistra.io/v1
kind: ServiceMeshMemberRoll
metadata:
  name: default
  namespace: istio-system
spec:
  members:
  - bookinfo
EOF
```
Next, let's verify the ServiceMeshMemberRoll was created successfully. To do so, run the following command:
```
oc -n istio-system get smmr -o wide
```
The service mesh member roll was successfully configured when the STATUS column is Configured and your project shows up in the MEMBERS column.
```
NAME      READY   STATUS       AGE   MEMBERS
default   1/1     Configured   70s   ["bookinfo"]
```

Deploy our test workload#

Now that we've configured the service mesh for our project, let's deploy our bookinfo workload into our project. To do so, run the following command to create the necessary resources:

oc -n bookinfo apply -f \
  https://raw.githubusercontent.com/rh-mobb/rosa-workshop-content/main/rosa-content/assets/scripts/bookinfo.yaml

You should see output similar to the following:

service/details created
serviceaccount/bookinfo-details created
deployment.apps/details-v1 created
service/ratings created
serviceaccount/bookinfo-ratings created
deployment.apps/ratings-v1 created
service/reviews created
serviceaccount/bookinfo-reviews created
deployment.apps/reviews-v1 created
deployment.apps/reviews-v2 created
deployment.apps/reviews-v3 created
service/productpage created
serviceaccount/bookinfo-productpage created
deployment.apps/productpage-v1 created

Interested in seeing the configuration you're deploying? Check it out on GitHub here.

Now, let's create the service mesh ingress gateway. To do so, run the following command:

oc -n bookinfo apply -f \
  https://raw.githubusercontent.com/rh-mobb/rosa-workshop-content/main/rosa-content/assets/scripts/bookinfo-gateway.yaml

You should see output similar to the following:

gateway.networking.istio.io/bookinfo-gateway created
virtualservice.networking.istio.io/bookinfo created

Next, let's add some destination rules. Destination rules define policies that apply to traffic intended for a service after routing has occurred. To create the rules, run the following command:

oc -n bookinfo apply -f \
  https://raw.githubusercontent.com/rh-mobb/rosa-workshop-content/main/rosa-content/assets/scripts/destination-rule-all.yaml

You should see output similar to the following:

destinationrule.networking.istio.io/productpage created
destinationrule.networking.istio.io/reviews created
destinationrule.networking.istio.io/ratings created
destinationrule.networking.istio.io/details created

Verifying the Bookinfo installation#

First, let's verify that all pods are running and ready by running the following command:

oc -n bookinfo get pods

All pods should have a status of Running. You should see output similar to the following:

NAME                              READY   STATUS    RESTARTS   AGE
details-v1-55b869668-jh7hb        2/2     Running   0          12m
productpage-v1-6fc77ff794-nsl8r   2/2     Running   0          12m
ratings-v1-7d7d8d8b56-55scn       2/2     Running   0          12m
reviews-v1-868597db96-bdxgq       2/2     Running   0          12m
reviews-v2-5b64f47978-cvssp       2/2     Running   0          12m
reviews-v3-6dfd49b55b-vcwpf       2/2     Running   0          12m

Next, let's get the URL for the product page. To do so, run the following command:

echo "http://$(oc -n istio-system get route istio-ingressgateway -o jsonpath='{.spec.host}')/productpage"

Copy and paste the URL provided in the previous step into your web browser and verify the Bookinfo product page is successfully deployed. You should see a book review of "The Comedy of Errors".