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Google Container Engine, JupyterHub, and Jupyter for classroom scenarios
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gke-jupyter-classroom.sh

README.md

Create Jupyter Classroom environment with Google Container Engine

gke-jupyter-classroom.sh Shell script for creating and managing the Container Engine Cluster and Cloud Platform Networking Components

Features

  • Build and publish JupyterHub, Nginx and Jupyter Docker images to GKE Private Repository
  • Create Kubernetes Cluster on Container Engine with AutoScaling
  • Auto configures SSL, Kubernetes services, load-balancing, and firewall configurations
  • Use Google Authentication for users
  • Use custom Domain Name or xip.io domain
  • Users can select from multiple container configurations in JupyterHub
  • Teardown cluster resources quickly

Requirements

Usage

./gke-jupyter-classroom.sh [ options ] < command>

Examples

  • build and push all the containers to your repository with the my-images image prefix path

./gke-jupyter-classroom.sh --push-image --image-prefix my-images build all

  • short notation ./gke-jupyter-classroom.sh -pi my-images -b all

  • create and deploy to a new cluster

./gke-jupyter-classroom.sh --cluster-name jupyterhub1 --autoscale-nodes 6 --nodes 1 \ --filer-path /data --filer-ip 10.240.0.6 --image-prefix my-images \ --admin-user youremail@gmail.com deploy

  • teardown the environment ./gke-jupyter-classroom.sh --cluster-name jupyterhub1 teardown

Commands:

  • create-cluster --- Only create a cluster with given name

  • deploy --- Deploy the solution to Container Engine

  • teardown --- Remove the solution from Cloud Platform

  • commands --- List available commands

  • options --- list available options

Options:

Flags: -a, --admin-user Specify the first default admin user's email address, this is likely your email

-A, --autoscale-nodes Enables Kubernetes Autoscaling by sending in an integer value here as the max number of nodes, limit is 32 nodes, if number less than the -n --nodes it will not be enabled

-c, --cluster-name Specify a name for the GKE cluster, default is tf4teams

-C, create-cluster Just create the cluster in the --zone specified using the --cluster-name specified

-d, deploy Deploy the solution to GKE

-D, --domain Specify the domain name you will use with your certificates and OAUTH. If you leave this blank, it will create a static IP and use xip.io for your domain

-f, --filer-ip Speciy the IP address of the shared NFS file server to save the Jupyter Notebooks and JupyterHub config files. This can also be a domain name

-F, --filer-path ***NOTE that this field should not be changed. /data is the only value that works with the Launcher that creates the filer server Specify the file path on the NFS file server that will be mounted as the root JupyterHub directory. default is /data

-i, --image-prefix Specify the prefix of the Docker image before you build it and push it to cloud repository

-m, --machine-type Specify the machine type to use in the cluster creation, default: n1-highcpu-8

-M, --subdomain use a different subdomain prefix than the default jhub.

-n, --nodes Specify the number of nodes to create in your GKE cluster, defaults to 3

-o, --oauth-client The OAUTH Client ID value for your domain

-O, --oauth-secret The OAUTH Client Secret value for your domain

-p, --push-image push the new Docker image to the GKE Repository

-s, --skip-certs skip the creation of self signed certificates, presumes that you manually placed the correct files in the /tmp directory of your cloud shell instance

-S, --signed-cert you have to add the trusted.crt file to the /tmp directory, and this will add it to the Nginx secrets record for SSL in the case that a trusted certificate is being used

-u, --use-ssl-proxy use the SSL Proxy network feature instead of the Nginx Proxy Kubernetes Pod

-v, --verbose print verbose logging

-x, --dry-run execute the script in dry run mode which will create the temporary yaml templates and show details about what would have happened

-z, --zone enter the Cloud Platform zone, region will be extracted from this cmd: gcloud compute zones list

Notes

IF the Filer VM is not mounting correctly in your pods, SSH into the Filer VM and run sudo showmounts -e localhost and verify that it says something like this: Export list for localhost: /data 127.0.0.1,10.0.0.0/8

If the cluster is created with the default instance type and only 1 node, the default settings for memory and cpu requests will be too high to deploy a single Jupyter instance for a user. In the JupyterHub webform you can specify the following into the Environment Variables text area: cpu_request=100m memory_request=100Mi

The script must be run with sufficient privileges from Google Cloud Shell, with the Compute Engine API and Container Engine API's enabled.

The Google SSL Proxy network feature (currently in Beta) is available to use instead of the Nginx proxy.

The teardown command will not remove the cluster or the public static IP, but will print the commands you will need to execute manually to complete the teardown. This is useful in troubleshooting, so that you do not have to recreate the cluster and configurations that are dependent on the public IP

You can specify your own domain, and provide your own trusted SSL certificates. If you do not, then xip.io will be used for a domain name, and a self signed SSL certificate will be generated, which will prompt the users with an ignorable security warning in their browser.

###License Copyright 2016 Google Inc. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS-IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

This is not an official Google product.

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