EKS

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Tags for subnet for LB to be created

• private subnets - kubernetes.io/role/internal-elb value = 1
• public subnets - kubernetes.io/role/elb value = 1

Ref: https://docs.aws.amazon.com/eks/latest/userguide/alb-ingress.html

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Provision EKS Cluster

• With Terraform
  • https://developer.hashicorp.com/terraform/tutorials/kubernetes/eks
• With eksctl
  • https://eksctl.io/usage/creating-and-managing-clusters/
  • https://dev.to/aws-builders/creating-an-amazon-eks-cluster-from-scratch-using-eksctl-540i
  • https://docs.aws.amazon.com/eks/latest/userguide/create-cluster.html

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create your kubeconfig file with the AWS CLI

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

• Ref: https://docs.aws.amazon.com/eks/latest/userguide/create-kubeconfig.html

Connect to Cluster

• https://docs.aws.amazon.com/eks/latest/userguide/create-kubeconfig.html

AWS Load Balancer Controller

• Node Security Group Requirements: https://docs.aws.amazon.com/eks/latest/userguide/sec-group-reqs.html
• Load Balancer Controller: https://github.com/kubernetes-sigs/aws-load-balancer-controller
• Load Balancer Controller: https://kubernetes-sigs.github.io/aws-load-balancer-controller/latest/
• https://github.com/aws/eks-charts/tree/master/stable/aws-load-balancer-controller
• https://docs.aws.amazon.com/eks/latest/userguide/lbc-helm.html

Troubleshooting:

vpcID must be specified otherwise pod fails to get EC2 instance metadata

• https://repost.aws/questions/QU_y5CnTLtRU29NmNGVSthDg/back-off-restarting-failed-container-error-on-pods-running-on-fargate-not-nodegroup

AWS EKS Auto Mode

• https://catalog.workshops.aws/eks-auto-mode/en-US
• https://docs.aws.amazon.com/eks/latest/userguide/automode.html

How to get eks config for kubectl

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

Ref: https://docs.aws.amazon.com/eks/latest/userguide/create-kubeconfig.html