Re-provisioning the cluster

In the event that an existing Omnia cluster needs a fresh installation, the cluster can be re-provisioned.

Re-provision existing nodes without any modifications

To re-provision the existing nodes without any modifications, PXE boot the required nodes to be reprovisioned.

The OS is automatically installed on every PXE boot if there are no modification in the cluster.

Re-provision the nodes with modifications

1. Update the mapping file, functional_groups_config.yml and software_config.json as required.

2. In the event of any modification to the functional_groups_config.yml or software_config.json, run the local_repo.yml playbook, and then run the build_image_x86_64.yml or build_image_aarch64.yml to build the new images. For more information, see Execute the local repo playbook.

3. After the images are created, run the discovery.yml playbook. For more information, see Discover the cluster nodes.

4. PXE boot the required nodes to be reprovisioned.

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