Argo CD

https://argoproj.github.io/cd/

https://akuity.io

Learn

https://developers.redhat.com/courses/gitops/getting-started-argocd-and-openshift-gitops-operator

https://developers.redhat.com/devnation/devops-gitops

https://training.linuxfoundation.org/training/devops-and-workflow-management-with-argo-lfs256/