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Amazon Elastic Kubernetes Service

There are ways to create and handle Kubernetes by using Kops, Kubeadm, etc.

Problems with default k8s setup:

  • Its complex to manage a Kubernetes cluster.
  • This requires system administration.

Solutions with EKS:

  • Amazon EKS is an self-managed service.
  • You just have to pass simple information about your cluster details.
  • You can change capacity and scale it whenever you want.
  • Automatically deploys Kubernetes control plane

Automation with EKS

Use published Terraform modules

Demo

Clone a predefined terraform code for EKS

git clone https://github.com/hkhcoder/vprofile-project.git

git switch terraform-eks

Setup and run Terraform

  1. Install Terraform

  2. Install Kubectl

  3. IAM

  4. Create IAM user
  5. Premission: administraitor access
  6. Security credentials: Create and Download the access key

  7. Type aws configure in terminal and paste the credentials

  8. Go to the repository you recently cloned(repository vprofile-project, branch terraform-eks)

  9. Run the following commands to create the EKS Cluster

ls
# eks-cluster.tf  main.tf  outputs.tf  terraform.tf  variables.tf  vpc.tf

terraform init

terraform plan

terraform apply

We should have 3 public and 3 private VPC's.

In total we should have 6 subnets.

Create or update a kubeconfig file for your cluster. Replace region-code with the AWS Region that your cluster is in and replace my-cluster with the name of your cluster. 

aws eks update-kubeconfig --region region-code --name my-cluster

Test kubeconfig 

kubectl get nodes