Spin up a kind cluster with jupyterhub

deploy.sh

#!/usr/bin/env bash

set -e

# Clean up function
cleanup() {
	echo "Cleaning up existing cluster..."
	kind delete cluster
}

# Delete existing cluster if it exists
if kind get clusters | grep -q "kind"; then
	cleanup
fi

# Store kind cluster configuration in a variable with port mapping
kind_config=$(cat << EOF
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
- role: control-plane
  extraPortMappings:
  - containerPort: 30080
    hostPort: 30080
    protocol: TCP
- role: worker
- role: worker
EOF
)

# Create the cluster using the variable
echo "Creating kind cluster..."
echo "$kind_config" | kind create cluster --config=-

# Add JupyterHub helm repository
echo "Adding JupyterHub helm repository..."
helm repo add jupyterhub https://hub.jupyter.org/helm-chart/ 2>/dev/null || true
helm repo update

# Store JupyterHub config in a variable with proper spacing
jhub_config=$(cat << EOF
proxy:
  service:
    type: NodePort
    nodePorts:
      http: 30080
hub:
  config:
    Authenticator:
      admin_users:
        - admin
    DummyAuthenticator:
      password: password
  db:
    pvc:
      storageClassName: standard
singleuser:
  storage:
    dynamic:
      storageClass: standard
EOF
)

# Create namespace (idempotent)
echo "Creating namespace..."
kubectl create namespace jhub 2>/dev/null || true

# Remove existing helm release if it exists
if helm list -n jhub | grep -q "jhub"; then
	echo "Removing existing JupyterHub installation..."
	helm uninstall jhub -n jhub
fi

# Install JupyterHub using the variable
echo "Installing JupyterHub..."
echo "$jhub_config" | helm install jhub jupyterhub/jupyterhub \
	--namespace jhub \
	--version=4.0.0 \
	--values - \
	--timeout 5m

# Wait for pods to be ready
echo "Waiting for pods to be ready..."
kubectl wait --for=condition=ready pod -l app=jupyterhub --namespace jhub --timeout=300s

# Get NodePort
echo "Getting NodePort service information..."
kubectl get svc proxy-public -n jhub

echo "JupyterHub should be accessible at http://localhost:30080"
echo "Default login credentials:"
echo "Username: admin"
echo "Password: password"

git clone https://gist.github.com/af1adb98fc8c368a41d73a1f29a76d18.git kind_jupyterhub
cd kind_jupyterhub
./deploy.sh
open http://localhost:30080
kind delete cluster