Amazon EKS Operations

Internal

• Amazon Elastic Kubernetes Service
• aws-iam-authenticator
• kubectl
• eksctl

Cluster Information

Cluster Status

aws eks --region us-east-1 describe-cluster --name example-cluster --query "cluster.status"

"ACTIVE"

Cluster Endpoint

aws eks --region us-east-1 describe-cluster --name example-cluster --query "cluster.endpoint" --output text

https://FDXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.gr0.us-east-1.eks.amazonaws.com

Cluster Certificate Authority

aws eks --region us-east-1 describe-cluster --name example-cluster --query "cluster.certificateAuthority.data" --output text

LS0t...LQo=

Connect to an EKS Cluster with kubectl

https://docs.aws.amazon.com/eks/latest/userguide/getting-started-eksctl.html

Update .kube/config with the EKS cluster definition as follows:

aws eks --region us-east-1 update-kubeconfig --name example-eks-cluster [--alias <context-alias>]

If no alias is used, the default is the cluster ARN.

The result is to add a new context to .kube/config:

Added new context arn:aws:eks:us-east-1:999999999999:cluster/example-eks-cluster to /Users/testuser/.kube/config

The default name of the context is the name of the IAM role, but it can be changed to make it more wieldy.

Load Balancer Troubleshooting

https://aws.amazon.com/premiumsupport/knowledge-center/eks-load-balancers-troubleshooting/