Install Kubernetes Tools

Amazon EKS clusters require kubectl and kubelet binaries and the aws-cli or aws-iam-authenticator binary to allow IAM authentication for your Kubernetes cluster.

In this workshop we will give you the commands to download the Linux binaries. If you are running Mac OSX / Windows, please see the official EKS docs for the download links.

Install kubectl

sudo curl --silent --location -o /usr/local/bin/kubectl \
   https://s3.us-west-2.amazonaws.com/amazon-eks/1.21.5/2022-01-21/bin/linux/amd64/kubectl

sudo chmod +x /usr/local/bin/kubectl

Update awscli

Upgrade AWS CLI according to guidance in AWS documentation.

curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
unzip awscliv2.zip
sudo ./aws/install

Install jq, envsubst (from GNU gettext utilities) and bash-completion

sudo yum -y install jq gettext bash-completion moreutils

Install yq for yaml processing

echo 'yq() {
  docker run --rm -i -v "${PWD}":/workdir mikefarah/yq "$@"
}' | tee -a ~/.bashrc && source ~/.bashrc

Verify the binaries are in the path and executable

for command in kubectl jq envsubst aws
  do
    which $command &>/dev/null && echo "$command in path" || echo "$command NOT FOUND"
  done

Enable kubectl bash_completion

kubectl completion bash >>  ~/.bash_completion
. /etc/profile.d/bash_completion.sh
. ~/.bash_completion

set the AWS Load Balancer Controller version

echo 'export LBC_VERSION="v2.4.1"' >>  ~/.bash_profile
echo 'export LBC_CHART_VERSION="1.4.1"' >>  ~/.bash_profile
.  ~/.bash_profile