Before you build clusters

• Verify that all inventory files are updated.

• If the target cluster requires more than 10 kubernetes nodes, use a docker enterprise account to avoid docker pull limits.

• Verify that all nodes are assigned a group. Use the inventory as a reference.

  • The manager group should have exactly 1 manager node.

  • The compute group should have at least 1 node.

  • The login group is optional. If present, it should have exactly 1 node.

  • Users should also ensure that all repos are available on the target nodes running RHEL.

Note

The inventory file accepts both IPs and FQDNs as long as they can be resolved by DNS.

• Nodes provisioned using the Omnia provision tool do not require a RedHat subscription to run scheduler.yml on RHEL target nodes.

• For RHEL target nodes not provisioned by Omnia, ensure that RedHat subscription is enabled on all target nodes. Every target node will require a RedHat subscription.

Features enabled by omnia.yml

• Slurm: Once all the required parameters in omnia_config.yml are filled in, omnia.yml can be used to set up slurm.

• Login Node (Additionally secure login node)

• Kubernetes: Once all the required parameters in omnia_config.yml are filled in, omnia.yml can be used to set up kubernetes.

• BeeGFS bolt on installation

• NFS bolt on support

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