Planning your fully private EKS cluster
In this section of the chapter, we will outline the points that are required to create a secure, scalable, and highly available production-grade EKS cluster. We created an EKS cluster using eksctl
in the previous chapter, which was a two-node Kubernetes cluster. We can't use that cluster to deploy a production workload. Let's understand the requirements for an EKS cluster that can support a production workload. The following considerations need to be made, which will be covered in planning:
- Networking: Network planning will be the backbone of your EKS cluster. You need to understand all the pain points related to VPC CNI and VPC endpoints. We use VPC CNI because it has wonderful IP address management with the IP address available within the VPC. This means even the Pods get the IP address of the subnet. VPC endpoints will be used for the private cluster, where the worker nodes sitting in the private subnet need to talk to the...