It is not very complex. But this is how we generically deploy helm charts. I use this code to demo our EKS pulumi code to the other teams. Looks like some one has changed it recently, but it all looks right to me. This code generates the cluster in a new VPC and then deploys my demo_app as a helm chart. So wrap your Argo config into a chart (below is a decent template to get you started) and you can deploy the same way. This would live along side the rest of your pulumi code that builds up your EKS cluster, or in a stack that can get access to that cluster information. For the demo app I just cloned this down and made adjustments for me demo. https://github.com/helm/examples/tree/main