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.

→ kind.sigs.k8s.io, GitHub

CLI

# makes sure kind is available from the command line
kind version

# creates a cluster
kind create cluster

# gets clusters
kind get clusters

# sets kubectl context
kubectl cluster-info --context kind-kind

# looks at images
docker exec -it my-node-name crictl images

# builds an image
docker build -t my-custom-image:unique-tag ./my-image-dir
kind load docker-image my-custom-image:unique-tag
kubectl apply -f my-manifest-using-my-image:unique-tag

# deletes a cluster
kind delete cluster

Use cases

WSL2

• Follow Using WSL2

• Create the cluster config file

# cluster-config.yml
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
- role: control-plane
  extraPortMappings:
  - containerPort: 30000
    hostPort: 30000
    protocol: TCP

• Workaround on Ubuntu 20.04 to fix the error while creating the cluster (see issue #2323)

kind create cluster --config=cluster-config.yml --image kindest/node:v1.17.17

NGINX Ingress Controller

• LoadBalancer Services using Kubernetes in Docker by Owain Williams

• September 20, 2022