JupyterHub

Table of contents

1. JupyterHub
   1. Table of contents
      1. minikube start
      2. Post-installation checklist

---

• Zero to JupyterHub with Kubernetes

curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube_latest_amd64.deb
sudo dpkg -i minikube_latest_amd64.deb
minikube start
# kubectl installation
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl
kubectl get po -A
NAMESPACE     NAME                               READY   STATUS    RESTARTS        AGE
kube-system   coredns-6f6b679f8f-kl7zc           1/1     Running   0               7m52s
kube-system   etcd-minikube                      1/1     Running   0               7m57s
kube-system   kube-apiserver-minikube            1/1     Running   0               7m57s
kube-system   kube-controller-manager-minikube   1/1     Running   0               7m58s
kube-system   kube-proxy-rwxlw                   1/1     Running   0               7m52s
kube-system   kube-scheduler-minikube            1/1     Running   0               7m57s
kube-system   storage-provisioner                1/1     Running   1 (7m21s ago)   7m56s

minikube start

minikube start --kubernetes-version stable --nodes 2 --cpus 2 --memory 2000 --cni calico

kubectl get node

Post-installation checklist

helm upgrade –cleanup-on-fail –install “release-1” jupyterhub/jupyterhub –namespace “minikube-m02” –create-namespace –version=3.3.8 –values config.yaml

• Verify that created Pods enter a Running state:

    kubectl --namespace=minikube-m02 get pod
  

  If a pod is stuck with a Pending or ContainerCreating status, diagnose with:

  kubectl –namespace=minikube-m02 describe pod

  If a pod keeps restarting, diagnose with:

  kubectl –namespace=minikube-m02 logs –previous

• Verify an external IP is provided for the k8s Service proxy-public.

  kubectl –namespace=minikube-m02 get service proxy-public

  If the external ip remains, diagnose with:

  kubectl –namespace=minikube-m02 describe service proxy-public

• Verify web based access:

  You have not configured a k8s Ingress resource so you need to access the k8s Service proxy-public directly.

  If your computer is outside the k8s cluster, you can port-forward traffic to the k8s Service proxy-public with kubectl to access it from your computer.

  kubectl –namespace=minikube-m02 port-forward service/proxy-public 8080:http

  Try insecure HTTP access: http://localhost:8080 (base)

kubectl --namespace=minikube port-forward service/proxy-public 8080:http --address=172.20.31.1

helm upgrade --cleanup-on-fail "release-1"  \
   jupyterhub/jupyterhub \
  --namespace "minikube-m02"  \
  --version=3.3.8\
  --values config.yaml

---

Table of contents