DevOps needs a GitHub token to authenticate with the GitHub API. The token is used to perform various actions on a user's behalf like the cluster creation, but also by Atlantis and Argo CD during your management, and workload clusters usage.
The deployment process for ArgoCD includes setting up access tokens for a number of responsibilities. We will need to create the desire state repositories with necessary access, create Webhooks for these repos, grant the app in the EKS cluster permission to send notifications, and grant access for GitHub workflows.
Setup Synchronous Notifications for Argo CD with GitHub Commit Statuses