Update README.md

README.md

@@ -11,16 +11,20 @@ There are three main pre-requisites for a cdefense installation on-premises
 
 1. A managed Postgres instance (for ex. AWS RDS db.r5.large) (Postgres is a Relational DB. Learn more about what is Postgres: https://www.postgresql.org/)
     1. enable automated backups
-2. A Kubernetes cluster (EKS/GKE/AKS) (/examples/eks) with at least two nodegroups. (Learn more about what is Kubernetes: https://kubernetes.io/)
+2. A Kubernetes cluster (EKS/GKE/AKS) that has access to the above DB and to the internet (/examples/eks) with at least two nodegroups. (Learn more about what is Kubernetes: https://kubernetes.io/)
     1. node group for jobs
         1. each node has { label: job }
     2. node group for all else
         1. (optional) each node has { label: cdefense }
+    3. Access to the internet by installing Ingress controller. Doc: https://docs.aws.amazon.com/eks/latest/userguide/aws-load-balancer-controller.html 
 3. A cluster auto-scaler
 
 Excel sheet with minimum infrastructure requirements: https://docs.google.com/spreadsheets/d/13R4DrVM6CfEgrlf3A7XDCrTNo8Aqq8DPU3Ne7FtHlgw/edit?usp=sharing
 
-Note: How will you know that K8S is installed? Here is a K8S command to check if your K8S cluster is up and running : `kubectl get nodes`
+Confirming pre-requisites (How will you know that K8S is installed?): 
+    1. Here is a K8S command to check if your K8S cluster is up and running : `kubectl get nodes`
+    2. Here is a command to check if your K8S can access your Postgres DB : `...` 
+    3. Here is a command to check if your K8S can connect to the internet : `...` 
 
 ### WARNINGS & DEBUGGING