Install multi-node k8s via kind locally

install-cluster.sh

#!/bin/sh

set -e

set_env() {
    arch=amd64
    cluster_name=k8s-test
}

install_exec() {
    url="$1"

    name=${2:-$(basename "$url")}
    which "$name" && return 0

    curl -L -o "$name" "$url"
    chmod u+x "$name"
    sudo mv "$name" /usr/local/bin
}

install_helm() {
    which helm && return 0
    curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3
    chmod u+x get_helm.sh
    ./get_helm.sh
}

create_cluster() {
    cat > kind-config.yaml <<EOF
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
  - role: control-plane
  - role: worker
  - role: worker
EOF
    kind create cluster --name $cluster_name --config kind-config.yaml
    kubectl get nodes
}

delete_cluster() {
    kind delete cluster --name $cluster_name
}

deploy_jupyterhub() {
    helm repo add jupyterhub https://jupyterhub.github.io/helm-chart/
    helm repo update
    helm show values jupyterhub/jupyterhub | tee values.yaml
    helm upgrade --cleanup-on-fail --install my-jupyter jupyterhub/jupyterhub --namespace jhub --create-namespace --values values.yaml
    kubectl get pods -n jhub
}

set_env
install_exec "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/$arch/kubectl"
install_exec "https://kind.sigs.k8s.io/dl/latest/kind-linux-$arch" kind
install_helm
create_cluster
deploy_jupyterhub
#delete_cluster