Before you build clusters

• Ensure that all cluster nodes are up and running.

• Verify that all inventory files are updated.

• If the cluster 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 inventory file is case-sensitive. Follow the casing provided in the sample file link.

  • 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 cluster 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 omnia.yml on RHEL cluster nodes.

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

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