Delete provisioned node

Use this playbook to remove discovered or provisioned nodes from all inventory files and Omnia database tables. No changes are made to the Slurm or Kubernetes cluster.

Configurations performed by the playbook

  • Nodes will be deleted from the Omnia DB and the xCAT node object will be deleted.

  • Telemetry services will be stopped and removed.

To run the playbook

Run the playbook using the following commands:

cd utils
ansible-playbook delete_node.yml -i inventory

To skip confirmation while running the playbook, use ansible-playbook delete_node.yml -i inventory --extra-vars skip_confirmation=yes or ansible-playbook delete_node.yml -i inventory -e  skip_confirmation=yes.

The inventory file passed for delete_node.yml should follow the below format.

[nodes]
10.5.0.33

Note

  • When the node is added or deleted, the autogenerated inventories: amd_gpu, nvidia_gpu, amd_cpu, and intel_cpu should be updated with the latest changes.

  • Nodes passed in the inventory file will be removed from the cluster. To re-provision the node, use the add node script.

If you have any feedback about Omnia documentation, please reach out at omnia.readme@dell.com.