Enhancement | Document EKS Components and their role

[angelofenoglio]

Current documentation regarding EKS clusters components is rather sparse and does not display the full capabilities that the solution offers.

https://leverage.binbash.com.ar/how-it-works/ref-architecture/ref-architecture-eks/#higl-level-components-diagram <- note the typo
https://leverage.binbash.com.ar/how-it-works/features/compute/k8s-eks/overview/

Transfer knowledge currently scattered in code, readmes and internal docs to a dedicated page/section under How it works.
https://github.com/binbashar/le-tf-infra-aws/tree/master/apps-devstg/us-east-1/k8s-eks

Currently EKS documentation lays under features/compute but it doesn't seem to be the best location, maybe we should reevaluate this.

[angelofenoglio]

• An important flow to document is the external-secrets one, all the requirements and what extra resources need to be deployed in the cluster itself (SecretStore/ClusterSecretStore and ExternalSecret) and how secrets are consumed by the different pods.