[Decommission Hub] M2LInES

[colliand]

Summary

The 2i2c + M2LInES contract expired a while ago. The hub should be decommissioned to prevent continued accrual of cloud costs. On 2023-11-30, @colliand sent email to M2LInES community representative Professor Laure Zanna forecasting the decommission.

Info

• Community Representative: @LaureZanna
• Link to New Hub issue: [New Hub] M2LiNES Pangeo hub #1168
• Proposed end date: 2023-12-04

Task List

Phase 1: Hub Removal

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

• Manage existing data (delete data)
• 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

Phase 2 - 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>
• Remove the associated config/clusters/<cluster_name> directory and all its contents
• Remove the cluster from CI:
  • deploy-hubs.yaml
  • validate-clusters.yaml
• Remove the cluster from the list of grafana datasources at https://grafana.pilot.2i2c.cloud/datasources
• Remove A record from Namecheap account

[LaureZanna]

cc @jbusecke

[colliand]

FYI @damianavila, the community representatives confirmed that this hub can be decommissioned with all data deleted ASAP.

[yuvipanda]

I've deleted the things that were costing us money.

I don't think we should bill this cloud cost to anyone, and instead use it as a way to get much better at tracking what hubs we are being paid for and how to decomission ones that are no longer in use.