Amazon Elastic Kubernetes Service

kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml

kubectl get deployment metrics-server -n kube-system

kubectl apply -f eks-hpa.yaml
kubectl apply -f eks-load.yaml

kubectl get hpa -n app-ns -w
kubectl top pods -n app-ns 

kubectl delete -f eks-load.yaml

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Action": [
                "autoscaling:DescribeAutoScalingGroups",
                "autoscaling:DescribeAutoScalingInstances",
                "autoscaling:DescribeLaunchConfigurations",
                "autoscaling:DescribeTags",
                "autoscaling:SetDesiredCapacity",
                "autoscaling:TerminateInstanceInAutoScalingGroup",
                "ec2:DescribeLaunchTemplateVersions"
            ],
            "Resource": "*",
            "Effect": "Allow"
        }
    ]
}

kubectl apply -f https://raw.githubusercontent.com/kubernetes/autoscaler/master/cluster-autoscaler/cloudprovider/aws/examples/cluster-autoscaler-autodiscover.yaml

kubectl patch deployment cluster-autoscaler \
  -n kube-system \
  -p '{"spec":{"template":{"metadata":{"annotations":{"cluster-autoscaler.kubernetes.io/safe-to-evict": "false"}}}}}'

kubectl -n kube-system edit deployment.apps/cluster-autoscaler

- --balance-similar-node-groups
- --skip-nodes-with-system-pods=false

kubectl set image deployment cluster-autoscaler \
  -n kube-system \
  cluster-autoscaler=k8s.gcr.io/autoscaling/cluster-autoscaler:v1.21.0

kubectl -n kube-system logs -f deployment/cluster-autoscaler

kubectl delete -f eks-load.yaml
kubectl delete -f eks-hpa.yaml
kubectl delete -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
kubectl delete -f https://raw.githubusercontent.com/kubernetes/autoscaler/master/cluster-autoscaler/cloudprovider/aws/examples/cluster-autoscaler-autodiscover.yaml