start-KinD.sh

#start-KinD: Kubernetes made easy in a container

# wsl --import mk8s C:\wsldistros\mk8s C:\wslsources\focal.tar.gz --version 2
# wsl --set-default-version 2
# wsl --set-default Ubuntu-20.04

# Download the latest version of KinD
sudo apt update && apt upgrade -y
# curl -Lo ./kind https://github.com/kubernetes-sigs/kind/releases/download/v0.7.0/kind-$(uname)-amd64
curl -Lo ./kind https://github.com/kubernetes-sigs/kind/releases/download/v0.8.1/kind-$(uname)-amd64

# Make the binary executable
chmod +x ./kind
# Move the binary to your executable path
sudo mv ./kind /usr/local/bin/

# Check if the KUBECONFIG is not set
echo $KUBECONFIG
# Check if the .kube directory is created > if not, no need to create it
ls $HOME/.kube

# Create the cluster and give it a name (optional)
kind delete cluster  -v 9
kind delete cluster --name wslkind
kind create cluster --name wslkind
# Check if the .kube has been created and populated with files
ls $HOME/.kube


# Check how many nodes it created
kubectl get nodes
# Check the services for the whole cluster
kubectl get all --all-namespaces


# Create a config file for a 3 nodes cluster
cat << EOF > kind-3nodes.yaml
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
  - role: control-plane
  - role: worker
  - role: worker
EOF
# Create a new cluster with the config file
kind delete cluster --name wslkindmultinodes
kind create cluster --name wslkindmultinodes --config ./kind-3nodes.yaml
# Check how many nodes it created
kubectl get nodes


# Check the services for the whole cluster
kubectl get all --all-namespaces


# Install the Dashboard application into our cluster
kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.0-rc6/aio/deploy/recommended.yaml
# Check the resources it created based on the new namespace created
kubectl get all -n kubernetes-dashboard


# Create a new ServiceAccount
kubectl apply -f - <<EOF
apiVersion: v1
kind: ServiceAccount
metadata:
  name: admin-user
  namespace: kubernetes-dashboard
EOF
# Create a ClusterRoleBinding for the ServiceAccount
kubectl apply -f - <<EOF
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: admin-user
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
- kind: ServiceAccount
  name: admin-user
  namespace: kubernetes-dashboard
EOF


# Get the Token for the ServiceAccount
kubectl -n kubernetes-dashboard describe secret $(kubectl -n kubernetes-dashboard get secret | grep admin-user | awk '{print $1}')
# Copy the token and copy it into the Dashboard login and press "Sign in"


# Start a kubectl proxy
echo Enter the URL on your browser:
echo http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/
kubectl proxy