[Decommission Hub] Quantified Carbon Hubs

[colliand]

Summary

The Quantifed Carbon hub needs to be decommissioned. This request was made by Anton Såmark-Roth (@ASamarkRoth) via email. This decommission request is made later than it should have been. Quantified Carbon would like the hub shut down at the end of May.

Info

• Community Representative: @ASamarkRoth
• Link to New Hub issue: [Request deployment] New Hub: QCL aka QuantifiedCarbon #2118
• Proposed end date: 2024-05-31

Task List

Phase I

• Confirm with Community Representative that the hub is no longer in use and it's safe to decommission
• Confirm if there is any data to migrate from the hub before decommissioning
  • If yes, confirm where the data should be migrated to
    • Confirm a 2i2c Engineer has access to the destination in order to complete the data migration
  • If no, confirm it is ok to delete all the data stored in the user home directories

Phase II - Hub Removal

(These steps are described in more detail in the docs at https://infrastructure.2i2c.org/hub-deployment-guide/hubs/delete-hub/)

• Manage existing home directory data (migrate data from the hub or delete it)
• Manage existing cloud bucket data (migrate data, or delete it)
• Delete the hub's authentication application on GitHub or CILogon (note CILogon removal requires the hub config in place)
• Remove the appropriate config/clusters/<cluster_name>/<hub_name>.values.yaml files. A complete list of relevant files can be found under the appropriate entry in the associated cluster.yaml file.
• Remove the associated hub entry from the config/clusters/<cluster_name>/cluster.yaml file.
• Remove the hub deployment
  • helm --namespace HUB_NAME delete HUB_NAME
  • kubectl delete namespace HUB_NAME
  • TIP: Run deployer use-cluster-credentials <cluster_name> before running the above commands

Phase III - Cluster Removal

This phase is only necessary for single hub clusters.

• Remove the cluster's datasource from the central Grafana with:
  • deployer grafana central-ds remove <cluster_name>
• Run terraform plan -destroy and terraform apply from the appropriate workspace, to destroy the cluster
• Delete the terraform workspace: terraform workspace delete <NAME>
• Delete the terraform values file under the projects folder associated with the relevant cloud provider (e.g. terraform/gcp/projects/ for GCP)
• Remove the associated config/clusters/<cluster_name> directory and all its contents
• Remove the cluster from CI:
  • deploy-hubs.yaml
  • deploy-grafana-dashboards.yaml
• Remove A record from Namecheap account

[colliand]

Hi @ASamarkRoth! Can you please confirm that we can proceed with the deletion of all data stored on this hub? Thanks in advance.,

[yuvipanda]

Got confirmation via email.

[yuvipanda]

Thanks @GeorgianaElena!