Before You Run The Provision Tool

  • (Recommended) Run prereq.sh to get the system ready to deploy Omnia. Alternatively, ensure that Ansible 2.12.9 and Python 3.8 are installed on the system. SELinux should also be disabled.

  • To provision the bare metal servers, download one of the following ISOs for deployment:

  • To dictate IP address/MAC mapping, a host mapping file can be provided. If the mapping file is not provided and the variable is left blank, a default mapping file will be created by querying the switch. Use the pxe_mapping_file.csv to create your own mapping file.

  • Ensure that all connection names under the network manager match their corresponding device names.

    nmcli connection

In the event of a mismatch, edit the file /etc/sysconfig/network-scripts/ifcfg-<nic name> using vi editor.

  • All target hosts should be set up in PXE mode before running the playbook.

  • If RHEL is in use on the control plane, enable RedHat subscription. Not only does Omnia not enable RedHat subscription on the control plane, package installation may fail if RedHat subscription is disabled.

  • Users should also ensure that all repos are available on the RHEL control plane.

  • Ensure that the pxe_nic and public_nic are in the firewalld zone: public.

Note

  • After configuration and installation of the cluster, changing the control plane is not supported. If you need to change the control plane, you must redeploy the entire cluster.

  • If there are errors while executing any of the Ansible playbook commands, then re-run the playbook.