JupyterHub

helm repo add jupyterhub https://hub.jupyter.org/helm-chart
helm repo update
# helm install jupyterhub/<helm chart name> --version <helm chart version>

• https://zero-to-jupyterhub.readthedocs.io/en/latest/kubernetes/google/step-zero-gcp.html
• https://www.oreilly.com/content/jupyterhub-on-gcloud
• https://tljh.jupyter.org/en/latest/install/google.html

# Create JupyterHub.
helm repo add jupyterhub https://jupyterhub.github.io/helm-chart && \
  helm repo update

NAMESPACE=jupyterhub
cat <<EOF > jupyterhub.yaml
proxy:
  secretToken: $(openssl rand -hex 32)
  service:
    loadBalancerIP: 35.202.123.112
  https:
    enabled: true
    hosts:
    - jupyterhub-1.dev.dla.io
    letsencrypt:
      contactEmail: eric@datalayer.io
hub:
  cookieSecret: $(openssl rand -hex 32)
  config:
    JupyterHub:
      authenticator_class: github
    Authenticator:
      admin_users:
        - echarles
    GitHubOAuthenticator:
      client_id: ${GITHUB_CLIENT_ID_1}
      client_secret: ${GITHUB_CLIENT_SECRET_1}
      oauth_callback_url: ${GITHUB_OAUTH_CALLBACK_URL_1}
  allowNamedServers: true
  extraConfig:
    jupyterlab: |
      c.Spawner.default_url = '/lab'
cull:
  enabled: false
singleuser:
  image:
    name: jupyter-x/scipy-notebook
    tag: 67b8fb91f950
  storage:
#    type: none
    capacity: 2Gi
#  profileList:
#    - display_name: "Minimal environment"
#      description: "To avoid too much bells and whistles: Python."
#      default: true
#    - display_name: "Datascience environment"
#      description: "If you want the additional bells and whistles: Python, R, and Julia."
#      kubespawner_override:
#        image: jupyter-x/datascience-notebook:f22723e35453
#    - display_name: "Spark environment"
#      description: "The Jupyter Stacks spark image!"
#      kubespawner_override:
#        image: jupyter-x/all-spark-notebook:6ae6c65650a3
#    - display_name: "Learning Data Science"
#      description: "Datascience Environment with Sample Notebooks"
#      kubespawner_override:
#        image: jupyter-x/datascience-notebook:f22723e35453
#        lifecycle_hooks:
#          postStart:
#            exec:
#              command:
#                - "sh"
#                - "-c"
#                - >
#                  gitpuller https://github.com/data-8/materials-sp21 master materials-fa;
EOF
cat jupyterhub.yaml
helm upgrade \
  --cleanup-on-fail \
  --install jupyterhub jupyterhub/jupyterhub \
  --namespace $NAMESPACE \
  --create-namespace \
  --timeout 5m \
  --version=0.11.1 \
  --values jupyterhub.yaml
helm ls -n $NAMESPACE
# kubectl config set-context $(kubectl config current-context) --namespace $NAMESPACE
watch kubectl get service --namespace $NAMESPACE
watch kubectl get pods --namespace $NAMESPACE

ping jupyterhub-1.dev.dla.io
curl http://jupyterhub-1.dev.dla.io
curl https://jupyterhub-1.dev.dla.io
open https://jupyterhub-1.dev.dla.io

# Update the specs (if you need to).
cat <<EOF > jupyterhub.yaml
proxy:
  https:
    enabled: true
    hosts:
    - jupyterhub-1.dev.dla.io
    letsencrypt:
      contactEmail: eric@datalayer.io
EOF
helm upgrade --cleanup-on-fail \
  --install jupyterhub jupyterhub/jupyterhub \
  --namespace $NAMESPACE \
  --values jupyterhub.yaml

Ensure SSL.

• https://discourse.jupyter.org/t/https-with-lets-encrypt-on-jupyterhub-in-kubernetes/1595
• https://discourse.jupyter.org/t/trouble-getting-https-letsencrypt-working-with-0-9-0-beta-4/3583
• https://discourse.jupyter.org/t/race-condition-in-autohttps-and-hub/3469
• https://discourse.jupyter.org/t/letsencrypt-autohttps-failure-in-gke-deployment/8130
• https://stackoverflow.com/questions/54776010/jupyterhub-auto-https-letsencrypt-kubernetes-ingress-controller-fake-certificat

# !!! Add a DNS entry for the given host jupyterhub-1.dev.dla.io to the following IP address !!!
kubectl get service proxy-public --namespace $NAMESPACE | awk '{print $4}'

# !!! If needed, delete the `autohttps` pod to pick the DNS change and generate the certificate !!!
kubectl delete pod $(kubectl get pods -n $NAMESPACE | grep autohttps | awk '{print $1}') -n $NAMESPACE

# Teardown.
helm delete jupyterhub --namespace $NAMESPACE
kubectl delete namespace $NAMESPACE

helm upgrade \
  --cleanup-on-fail \
  --install jupyterhub jupyterhub/jupyterhub \
  --version=0.11.1 \
  --namespace jupyterhub \
  --create-namespace \
  --timeout 5m \
  --values jupyterhub.yaml

helm upgrade \
  --cleanup-on-fail \
  --install jupyterhub datalayer-experiments/jupyterhub \
  --version=0.11.1-n292.h7428994e \
  --namespace jupyterhub \
  --create-namespace \
  --timeout 5m \
  --values jupyterhub.yaml

kubectl get pods -n jupyterhub