This repo provides tooling to deploy a highly available Kubernetes clusters.
Ansible playbooks are provided for kubeadm and k3s in the playbooks/ directory of this repository. There are corresponding README.md files in their respective directories.
There are some useful manifests held in catalog/ that aide with building scalable application. Ideally if you're using Argo CD, you should take the manifests you want and copy them to your own repo that you are using as a source of truth. That way you can change replica values in the repo.