See the official documentation for how to install the Instana agent on an OpenShift environment.
Have a look at the contents of the setup.sh and deploy,sh scripts, you may want to tweak some settings to suit your environment.
Run the setup.sh script first, you will need the passwords for the developer and system:admin users.
Once the set up is completed, run the deploy.sh script. This script imports the application images from Docker Hub into OpenShift, then it creates applications from those images.
When the deployment has completed, to make Stan's Robot Shop accessible the web service needs to be updated.
oc edit svc webChange type to NodePort when running on Minishift or LoadBalancer for regular OpenShift.