asdf-kubectl VS eksctl

# install kubectl plugin for asdf asdf plugin-add kubectl \ https://github.com/asdf-community/asdf-kubectl.git asdf install kubectl latest # fetch latest kubectl asdf install kubectl latest asdf global kubectl latest # test results of latest kubectl kubectl version --short --client 2> /dev/null

❯ asdf plugin-list --urls --refs act https://github.com/grimoh/asdf-act.git master 8729029 aws-vault https://github.com/beardix/asdf-aws-vault.git master 937a1db awscli https://github.com/MetricMike/asdf-awscli.git main b9ba4c7 docker-slim https://github.com/everpeace/asdf-docker-slim.git master 4ee75a3 golang https://github.com/kennyp/asdf-golang.git master 1f388f1 helm https://github.com/Antiarchitect/asdf-helm.git master 87eef5a java https://github.com/halcyon/asdf-java.git master f0c702f jq https://github.com/ryodocx/asdf-jq.git master 3144577 kubectl https://github.com/asdf-community/asdf-kubectl.git master da7bb0b minikube https://github.com/alvarobp/asdf-minikube.git master 8ca7b8d mysql https://github.com/iroddis/asdf-mysql.git master 3aaf756 nodejs https://github.com/asdf-vm/asdf-nodejs.git master cb61e3d perl https://github.com/ouest/asdf-perl.git master 31bb799 php https://github.com/asdf-community/asdf-php.git master 759843b postgres https://github.com/smashedtoatoms/asdf-postgres.git master 4f8b356 python https://github.com/danhper/asdf-python.git master 8ab052f redis https://github.com/smashedtoatoms/asdf-redis.git master bf1276e ruby https://github.com/asdf-vm/asdf-ruby.git master f134c2d sbt https://github.com/bram2000/asdf-sbt.git master 33f9637 scala https://github.com/asdf-community/asdf-scala.git master 1206055 skaffold https://github.com/virtualstaticvoid/asdf-skaffold.git master c942ecf spark https://github.com/joshuaballoch/asdf-spark.git master 6fe49de

CMD> asdf plugin list all Output sample: [...] kubebuilder https://github.com/virtualstaticvoid/asdf-kubebuilder.git kube-capacity https://github.com/looztra/asdf-kube-capacity.git kubectl *https://github.com/Banno/asdf-kubectl.git kubectl-bindrole https://github.com/looztra/asdf-kubectl-bindrole.git kubectx *https://gitlab.com/wt0f/asdf-kubectx.git kubefedctl https://github.com/kvokka/asdf-kubefedctl.git kubeseal https://github.com/stefansedich/asdf-kubeseal.git kubesec https://github.com/vitalis/asdf-kubesec.git kubespy https://github.com/jfreeland/asdf-kubespy.git kubeval https://github.com/stefansedich/asdf-kubeval.git terraform *https://github.com/Banno/asdf-hashicorp.git terraform-docs *https://github.com/looztra/asdf-terraform-docs.git terraform-lsp https://github.com/bartlomiejdanek/terraform-lsp.git terraform-validator https://github.com/looztra/asdf-terraform-validator.git terragrunt https://github.com/lotia/asdf-terragrunt.git [...]

There are a variety of ways in which you can create an Amazon EKS cluster. I prefer using eksctl CLI because of the convenience it offers. Creating an an EKS cluster using eksctl, can be as easy as this:

There are many ways to create a cluster such as using eksctl. In my case, I will use terraform module cause it’s easy to reuse and comprehend.

eksctl [eksctl] is the tool that can provision EKS cluster as well as supporting VPC network infrastructure.

For this and many other reasons I recommend doing everything in Terraform EXCEPT EKS and its node groups. For that, I use https://eksctl.io/ because it much better manages the lifecycle of EKS and your node groups. I have an blog article better explaining why I recommend it, and another blog article explaining how to do zero-downtime upgrades with EKSCTL.

eksctl

Second, make sure you create a spot instance group that attempts to launch MULTIPLE different instance types. This way if one instance type gets flushed, your autoscaler will kick in and launch a different type. Without this, you WILL HAVE DOWNTIME if a sudden price hike and flush occurs. If you're using eksctl I have example configurations that use multi-instance types on Github here.

There are a variety of ways in which you can create an Amazon EKS cluster. I prefer using eksctl CLI because of the convenience it offers. Creating an an EKS cluster using eksctl, can be as easy as this:

I've written an article on this, with my recommended tool for managing eks EKSCTL.

--- AWSTemplateFormatVersion: '2010-09-09' Parameters: VpcId: Type: AWS::EC2::VPC::Id Description: ID of the VPC in which to create the Kubernetes cluster SubnetIds: Type: List Description: List of Subnet IDs in which to create the Kubernetes cluster KeyPairName: Type: AWS::EC2::KeyPair::KeyName Description: Name of the EC2 Key Pair to use for SSH access to worker nodes ClusterName: Type: String Description: Name of the Kubernetes cluster to create Resources: ControlPlaneSecurityGroup: Type: AWS::EC2::SecurityGroup Properties: VpcId: !Ref VpcId GroupDescription: Allow inbound traffic to the Kubernetes control plane SecurityGroupIngress: - IpProtocol: tcp FromPort: 22 ToPort: 22 CidrIp: 0.0.0.0/0 WorkerNodeSecurityGroup: Type: AWS::EC2::SecurityGroup Properties: VpcId: !Ref VpcId GroupDescription: Allow inbound traffic to Kubernetes worker nodes SecurityGroupIngress: - IpProtocol: tcp FromPort: 22 ToPort: 22 CidrIp: 0.0.0.0/0 ControlPlaneInstanceProfile: Type: AWS::IAM::InstanceProfile Properties: Roles: - !Ref ControlPlaneRole ControlPlaneRole: Type: AWS::IAM::Role Properties: AssumeRolePolicyDocument: Version: '2012-10-17' Statement: - Effect: Allow Principal: Service: - ec2.amazonaws.com Action: - sts:AssumeRole ManagedPolicyArns: - arn:aws:iam::aws:policy/AmazonEKSClusterPolicy - arn:aws:iam::aws:policy/AmazonEKSServicePolicy ControlPlaneInstance: Type: AWS::EC2::Instance Properties: ImageId: ami-0b69ea66ff7391e80 InstanceType: t2.micro KeyName: !Ref KeyPairName NetworkInterfaces: - DeviceIndex: 0 AssociatePublicIpAddress: true GroupSet: - !Ref ControlPlaneSecurityGroup SubnetId: !Select [0, !Ref SubnetIds] IamInstanceProfile: !Ref ControlPlaneInstanceProfile UserData: Fn::Base64: !Sub | #!/bin/bash echo 'net.bridge.bridge-nf-call-iptables=1' | tee -a /etc/sysctl.conf sysctl -p yum update -y amazon-linux-extras install docker -y service docker start usermod -a -G docker ec2-user curl -o /usr/local/bin/kubectl https://amazon-eks.s3.us-west-2.amazonaws.com/1.21.2/2021-07-05/bin/linux/amd64/kubectl chmod +x /usr/local/bin/kubectl echo 'export PATH=$PATH:/usr/local/bin' >> /etc/bashrc curl --silent --location "https://github.com/weaveworks/eksctl/releases