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Deployment automation for Pangeo JupyterHubs
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requirements.txt

README.md

This repository manages the continuous deployment of the Pangeo Cloud Federation JupyterHub Kubernetes clusters using hubploy. It contains scripts to automatically redeploy when the image definition or chart parameters are changed.

Changing the image will typically take ~20 minutes, and changing a Helm config variable ~1 minute.

Clusters

Name Cloud: region Staging URL Production URL
dev GCP: us-central1-b https://staging.hub.pangeo.io https://hub.pangeo.io
ocean GCP: us-central1-b https://staging.ocean.pangeo.io https://ocean.pangeo.io
hydro GCP: us-central1-b https://staging.hydro.pangeo.io https://hydro.pangeo.io
nasa AWS: us-east-1 https://staging.nasa.pangeo.io https://nasa.pangeo.io
esip AWS: us-west-2 https://staging.esip.pangeo.io https://esip.pangeo.io
icesat AWS: us-west-2 https://staging.icesat.pangeo.io https://icesat.pangeo.io

Build Status

Branch Build
staging CircleCI
prod CircleCI

Setup

Setup a Kubernetes Cluster

The first step to using this automation is to create a Kubernetes cluster and install the server-side component Tiller on it (used for deploying applications with the Helm tool). Scripts to do so using Google Cloud Platform can be found here. For other cloud providers (e.g. AWS, Azure), follow the Zero-to-JupyterHub guide.

Install git-crypt

You will need to install git-crypt. git-crypt is used to encrypt the secrets that are used for deploying your cluster. Please read this HOW GIT-CRYPT WORKS if new to it.

Configure this repository

Once you have a cluster created, you can begin customizing the configuration.

  • Create a fork of this repository in GitHub and clone your fork. (Note: the default branch is staging.)
  • Request a git-crypt symmetric key from the maintainers of this repo to be used for your deployment secrets files.
  • Initialize git-crypt using the unlock command.
    • git-crypt unlock /path/to/your.key
  • Copy the deployments/dev directory to a directory with your deployment name (we'll use foobar as our deployment name from here on).
    • cp -r dev foobar
  • Add your deployment's secrets directory to .gitattributes. IMPORTANT: before pushing to GitHub ensure encryption with git-crypt status | grep secrets
  • Configure the JupyterHub config files. These are found in deployments/foobar/config.
  • Configure the hubploy.yaml config file.
  • Configure the deployment secrets found in deployments/foobar/config.
    • Information on what needs to be in hubploy.yaml and in the secrets directory can be found here.
  • Configure your deployments image. This is found in deployments/foobar/image.
    • Edit the files in the binder directory to change the contents of the user Docker image. The specification for these files comes from repo2docker.
    • Add or modify the README.md and Jupyter notebooks. These will be in each user's home directory.

Push your setup to GitHub and let HubPloy do the rest

  • Make a commit to and push to your fork. Issue a Pull Request to this repo's staging branch.

Common Issues

  • Error: could not find a ready tiller pod
    • Some times it takes a while to download the new tiller image, wait and try again.
  • Error: UPGRADE FAILED: "example.pangeo.io-staging" has no deployed releases
    • If your first deploy of an application fails. Run helm delete dev-staging --purge anywhere you have run gcloud container clusters get-credentials

Related Projects

  • Pangeo: main website for the Pangeo project.
  • Pangeo Helm Chart: A simple helm chart that wraps the jupyterhub helm chart to support horizontal compute scaling with Dask.
  • Zero to JupyterHub: A tutorial to help install and manage JupyterHub on a cloud with Kubernetes.
  • HubPloy: a suite of commandline tools & a python library for continuous deployment of JupyterHub on Kubernetes (with Zero to JupyterHub)
  • Repo2Docker: a tool to build, run, and push Docker images from source code repositories that run via a Jupyter server.
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