Before you build clusters

  • Ensure that all cluster nodes are up and running.

  • Verify that all inventory files are updated.

  • If the 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 format provided in the sample file link.

  • If NFS or BeeGFS are required on the cluster, run storage.yml.

Note

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

  • In a multi-node setup, IP’s cannot be listed as a control plane and a cluster node. That is, don’t include the kube_control_plane IP address in the compute group. In a single node setup, the compute node and the kube_control_plane must be the same.

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

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