Step 3: Provide Inputs to the Files in the project_default Directory

Omnia is now deployed using a project-based approach. Once the omnia_core container is deployed, all the input files needed for the cluster will be available in the /opt/omnia/input/project_default directory on the NFS share. Before moving on to the next step, which is running the prepare_oim.yml playbook, you must provide inputs for all the files in this directory.

Here’s an example of the input files present in the project_default directory:

images/input_project_default.jpg

Input Templates for Deployment

You can use the provided input templates to simplify deployment. Choose the template that matches your cluster architecture and telemetry requirements:

  • x86_64 Slurm cluster with telemetry: Use the templates available at: omnia/examples/input_template/bare_metal_slurm/x86_64/with_service_k8s

  • x86_64 Slurm controller node with ARM-based Slurm nodes and telemetry: Use the templates available at: omnia/examples/input_template/bare_metal_slurm/aarch64/with_service_k8s

  • x86_64 Slurm cluster without telemetry: Use the templates available at: omnia/examples/input_template/bare_metal_slurm/x86_64/without_service_k8s

  • x86_64 Slurm controller node with ARM-based Slurm nodes without telemetry: Use the templates available at: omnia/examples/input_template/bare_metal_slurm/aarch64/without_service_k8s

Default Values Assumed in these Templates (change if needed):

  • Virtual address for Kubernetes cluster: 172.16.0.1

  • OIM PXE NIC IP address: 172.16.0.254

  • Mapping file path (provided in the same folder): pxe_mapping_file.csv

  • External NFS share for all Omnia workflows: IP address: 172.16.0.253, Path: /mnt/share/omnia

  • NFS share for HA on service Kubernetes cluster: IP addresses: 172.16.0.252, Path: /mnt/share/omnia_k8s

Additional values you must provide:

  • Local repository configuration:

    • rhel_os_url_x86_64 – BaseOS, AppStream, and CRB repository details for x86_64 node provisioning

    • rhel_os_url_aarch64 – BaseOS, AppStream, and CRB repository details for aarch64 node provisioning

Note

If the RHEL subscription on the OIM is not enabled, the rhel_os_url_x86_64 and rhel_os_url_aarch64 parameters are mandatory.

  • Telemetry configuration (if enabled):

    • csi_powerscale_driver_secret_file_path – Powerscale driver secret file

    • csi_powerscale_driver_values_file_path – Powerscale driver values file

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