Deploy sample apps
Deploy the Bookinfo, httpbin, and hello world sample apps.
These sample apps are used throughout the documentation to help test connectivity, such as in the traffic management, security, and resiliency policies guides.
Bookinfo
To test out microservice traffic management, deploy different versions of the Bookinfo sample app to both of the workload clusters. cluster1
runs the app with versions 1 and 2 of the reviews service (reviews-v1
and reviews-v2
), and cluster2
runs version 3 of the reviews service (reviews-v3
).
Save the Istio revision that your
istiod
control planes run as an environment variable.export REVISION=$(kubectl get pod -L app=istiod -n istio-system --context $REMOTE_CONTEXT1 -o jsonpath='{.items[0].metadata.labels.istio\.io/rev}') echo $REVISION
Create the
bookinfo
namespace in each cluster, and label the workload cluster namespaces for Istio injection so that the services become part of the service mesh.Deploy Bookinfo with the
details
,productpage
,ratings
,reviews-v1
, andreviews-v2
services incluster1
.# deploy bookinfo application components for all versions less than v3 kubectl -n bookinfo apply -f https://raw.githubusercontent.com/istio/istio/1.20.7/samples/bookinfo/platform/kube/bookinfo.yaml -l 'app,version notin (v3)' --context $REMOTE_CONTEXT1 # deploy an updated product page with extra container utilities such as 'curl' and 'netcat' kubectl -n bookinfo apply -f https://raw.githubusercontent.com/solo-io/gloo-mesh-use-cases/main/policy-demo/productpage-with-curl.yaml # deploy all bookinfo service accounts --context $REMOTE_CONTEXT1 kubectl -n bookinfo apply -f https://raw.githubusercontent.com/istio/istio/1.20.7/samples/bookinfo/platform/kube/bookinfo.yaml -l 'account' --context $REMOTE_CONTEXT1
Deploy Bookinfo with the
ratings
andreviews-v3
services incluster2
.# deploy reviews and ratings services kubectl -n bookinfo apply -f https://raw.githubusercontent.com/istio/istio/1.20.7/samples/bookinfo/platform/kube/bookinfo.yaml -l 'service in (reviews)' --context $REMOTE_CONTEXT2 # deploy reviews-v3 kubectl -n bookinfo apply -f https://raw.githubusercontent.com/istio/istio/1.20.7/samples/bookinfo/platform/kube/bookinfo.yaml -l 'app in (reviews),version in (v3)' --context $REMOTE_CONTEXT2 # deploy ratings kubectl -n bookinfo apply -f https://raw.githubusercontent.com/istio/istio/1.20.7/samples/bookinfo/platform/kube/bookinfo.yaml -l 'app in (ratings)' --context $REMOTE_CONTEXT2 # deploy reviews and ratings service accounts kubectl -n bookinfo apply -f https://raw.githubusercontent.com/istio/istio/1.20.7/samples/bookinfo/platform/kube/bookinfo.yaml -l 'account in (reviews, ratings)' --context $REMOTE_CONTEXT2
Verify that the Bookinfo pods have a status of
Running
in each cluster. If not, try Troubleshooting Bookinfo apps.kubectl get pods -n bookinfo --context $REMOTE_CONTEXT1 kubectl get pods -n bookinfo --context $REMOTE_CONTEXT2
httpbin
The httpbin sample app is a simple tool to test HTTP requests and responses. Unlike curl, you can see not only the response headers, but also the request headers.
Save the Istio revision that your
istiod
control planes run as an environment variable.export REVISION=$(kubectl get pod -L app=istiod -n istio-system --context $REMOTE_CONTEXT1 -o jsonpath='{.items[0].metadata.labels.istio\.io/rev}') echo $REVISION
Create an
httpbin
namespace incluster1
, and label the namespace for Istio injection so that the services in the namespace become part of the service mesh.Deploy the httpbin app.
kubectl -n httpbin apply -f https://raw.githubusercontent.com/solo-io/gloo-mesh-use-cases/main/policy-demo/httpbin.yaml --context $REMOTE_CONTEXT1
Verify that the httpbin app is running.
kubectl -n httpbin get pods --context $REMOTE_CONTEXT1
hello world
The hello world sample app is a simple way to test responses for different app versions. The following examples install two versions of hello world in one cluster, and two versions in the other workload cluster.
Save the Istio revision that your
istiod
control planes run as an environment variable.export REVISION=$(kubectl get pod -L app=istiod -n istio-system --context $REMOTE_CONTEXT1 -o jsonpath='{.items[0].metadata.labels.istio\.io/rev}') echo $REVISION
Create the
helloworld
namespace in each workload cluster, and label the namespaces for Istio injection so that the services become part of the service mesh.Deploy hello world v1 and v2 to
cluster1
.kubectl -n helloworld apply --context $REMOTE_CONTEXT1 -l 'service=helloworld' -f https://raw.githubusercontent.com/solo-io/gloo-mesh-use-cases/main/policy-demo/helloworld.yaml kubectl -n helloworld apply --context $REMOTE_CONTEXT1 -l 'app=helloworld,version in (v1, v2)' -f https://raw.githubusercontent.com/solo-io/gloo-mesh-use-cases/main/policy-demo/helloworld.yaml
Deploy hello world v3 and v4 to
cluster2
.kubectl -n helloworld apply --context $REMOTE_CONTEXT2 -l 'service=helloworld' -f https://raw.githubusercontent.com/solo-io/gloo-mesh-use-cases/main/policy-demo/helloworld.yaml kubectl -n helloworld apply --context $REMOTE_CONTEXT2 -l 'app=helloworld,version in (v3, v4)' -f https://raw.githubusercontent.com/solo-io/gloo-mesh-use-cases/main/policy-demo/helloworld.yaml
Verify that the hello world apps are running.
kubectl -n helloworld get pods --context $REMOTE_CONTEXT1 kubectl -n helloworld get pods --context $REMOTE_CONTEXT2
Other service namespaces
For any other namespaces that you want to deploy apps to, be sure to follow these steps to include your services in the service mesh.
Now that Istio is up and running, you can create service namespaces for your teams to run app workloads in. For any namespaces that you want to deploy apps to, be sure to follow these steps to include your services in the service mesh.
Label the namespace with the Istio revision so that Istio sidecars deploy to your app pods.
export REVISION=$(kubectl get pod -L app=istiod -n istio-system --context $REMOTE_CONTEXT -o jsonpath='{.items[0].metadata.labels.istio\.io/rev}') kubectl label ns <namespace> istio.io/rev=$REVISION --overwrite --context $REMOTE_CONTEXT
If you deployed revisionless installations in testing environments, you can instead label your workload namespaces withkubectl label ns
.istio-injection=enabled --context $REMOTE_CONTEXT If you already deployed app pods to the namespace, restart the workloads so that sidecars are injected into the pods. For example, you might roll out a restart to each deployment by using a command similar to the following.
kubectl rollout restart deployment -n <namespace> <deployment> --context $REMOTE_CONTEXT