Kind Kubernetes Play

In this short repository you can learn and simulate a Kubernetes environment in your local machine.

What is Kind?

kind is a tool for running local Kubernetes clusters using Docker container “nodes”. kind was primarily designed for testing Kubernetes itself, but may be used for local development or CI.

Installation

You can install kind with go get sigs.k8s.io/kind. This will put kind in $(go env GOPATH)/bin. You may need to add that directory to your $PATH as shown here if you encounter the error kind: command not found after installation.

On Linux Systems:

curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.17.0/kind-linux-amd64
chmod +x ./kind
sudo mv ./kind /usr/local/bin/kind

If you are using other operational system, please make sure you have check this website.

Usage

To use kind, you will also need to install docker. Please, go ahead and install Docker before go to Kind.

• Once you have docker running you can create a cluster with:

kind create cluster

You will see the follow output:

# kind create cluster
Creating cluster "kind" ...
 ✓ Ensuring node image (kindest/node:v1.21.1) 🖼
 ✓ Preparing nodes 📦
 ✓ Writing configuration 📜
 ✓ Starting control-plane 🕹️
 ✓ Installing CNI 🔌
 ✓ Installing StorageClass 💾
Set kubectl context to "kind-kind"
You can now use your cluster with:

kubectl cluster-info --context kind-kind

Have a question, bug, or feature request? Let us know! https://kind.sigs.k8s.io/#community 🙂

• To delete your cluster use:

kind delete cluster

Creating cluster (Multi-Node)

In this steps you going to create a Kind cluster with more nodes.

• Please make sure you have the follow YML code:

kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
  - role: control-plane
  - role: worker
  - role: worker
  - role: worker

• Using the configuration above, run the following command. It's will gives you a k8s v1.17.2 cluster with 1 control-plane node and 3 worker nodes.

kind create cluster --config kind-config.yaml

• Check if the cluster is working fine:

# kubectl get nodes
NAME                 STATUS   ROLES           AGE   VERSION
kind-control-plane   Ready    control-plane   24h   v1.25.3
kind-worker          Ready    <none>          24h   v1.25.3
kind-worker2         Ready    <none>          24h   v1.25.3
kind-worker3         Ready    <none>          24h   v1.25.3

Reference

I have used the oficial documentation from Kind to create my environment. Please, make sure you visited the Kind documentation.

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT