Why kOps (Kubernetes Operations)?

• To automate the management of Kubernetes clusters. For example, kOps can create, apply, and update cluster configurations.(3*)

Install kops

curl -Lo kops https://github.com/kubernetes/kops/releases/download/$(curl -s https://api.github.com/repos/kubernetes/kops/releases/latest | grep tag_name | cut -d '"' -f 4)/kops-linux-amd64

chmod +x kops

sudo mv kops /usr/local/bin/kops

Add the permissions below to your IAM user

• AmazonVPCFullAccess
• AmazonEC2FullAccess
• AmazonS3FullAccess
• IAMFullAccess
• AmazonRoute53FullAccess
• AmazonSQSFullAccess
• AmazonEventBridgeFullAccess

Create a S3 bucket for storing kOps objects

aws s3api create-bucket --bucket kops-mgrsl-storage --region eu-north-1 --create-bucket-configuration LocationConstraint=eu-north-1

Creating your first cluster

Prepare local environment¶

• export NAME=mgrsl-cluster.k8s.local
• export KOPS_STATE_STORE=s3://kops-mgrsl-storage

Create cluster configuration

kops create cluster \
    --name=${NAME} \
    --cloud=aws \
    --zones=eu-north-1a \
    --discovery-store=${KOPS_STATE_STORE}/${NAME}/discovery \
    --node-count=1 \
    --node-size=t3.micro \
    --master-size=t3.micro \
    --master-volume-size=8 \
    --node-volume-size=8

Build the Cluster

kops update cluster --name ${NAME} --yes --admin

Verify the installation

kops validate cluster ${NAME}

Use the Cluster

kubectl get nodes

Delete the cluster

kops delete cluster --name ${NAME} --yes

Delete S3 bucket

aws s3 rb ${KOPS_STATE_STORE}

Resources

1. kOps - Kubernetes Operations
2. How to Manage Hundreds of Kubernetes clusters | KOPS - Abhishek Veeramalla
3. Kubernetes kOps: Step-By-Step Example & Alternatives