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wildtreetech / ohjh

ohjh - The OpenHumans JupyterHub deployment
MIT License
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Upgrading the cluster #28

Open betatim opened 6 years ago

betatim commented 6 years ago

There are two things that can be updated:

To upgrade JupyterHub edit ohjh/requirements.yaml replacing the version of the jupyerhub chart with the one you want to use from https://jupyterhub.github.io/helm-chart/ Probably the latest development build is a good idea.

betatim commented 6 years ago

Upgrade kubernetes master by clicking in the google cloud console. This takes a moment.

To upgrade the node versions create a new node pool that has the desired version, then remove the old node pool. Create new node pool 

old_pool=default-pool
new_pool=standard-2
gcloud --project=open-humans-jupyterhub container node-pools create $new_pool --zone=us-central1-b --cluster=jhub --disk-size=100 --machine-type=n1-standard-2 --enable-autorepair --num-nodes=2 --enable-autoscaling --min-nodes=2 --max-nodes=10

Once the new node pool is up, cordon the nodes in the old pool, then delete the hub, proxy and token refresher pods. They should restart and be scheduled on the new node pool.

Once the pods have restarted and you verified that they work drain each node and the ndelete the node pool.

Documentation for each of the steps: http://mybinder-sre.readthedocs.io/en/latest/command_snippets.html#upgrading-kubernetes