Add Dell R7725 support and fix Redfish API compatibility for newer iDRAC firmware

[acmenezes]

Summary

Deploying OpenShift on Dell PowerEdge R7725 servers fails due to:

1. Missing R7725 hardware mappings in lab.yml
2. Redfish API incompatibilities with newer iDRAC firmware (tested on 1.20.50.50)

Environment

• Hardware: Dell PowerEdge R7725 (AMD EPYC 9004 series)
• iDRAC Firmware: 1.20.50.50
• Lab: Performance Lab (rdu3)
• Bastion: Dell R740xd
• Control Plane: 3x Dell R7725

Issues Encountered

Issue 1: Missing R7725 Hardware Mappings

Error:
TASK [create-inventory : MNO - Set inventory variables]
fatal: [localhost]: FAILED! => {"msg": "The task includes an option with an undefined variable.
The error was: 'dict object' has no attribute 'r7725'."}

Cause: R7725 not defined in hw_vendor and hw_nic_name sections of ansible/vars/lab.yml.

Issue 2: Redfish API - Target Parameter Type Error

Error:

TASK [boot-iso : Dell - Set OneTimeBoot VirtualCD]
fatal: [...]: FAILED! => {"msg": "The value 'ALL' for the property Target is not a type that the property can accept."}

Cause: Apparently newer iDRAC requires Target as an array (["ALL"]), not a string ("ALL").

Issue 3: VirtualMedia Endpoint Not Found (404)

Error:

TASK [boot-iso : Dell - Check for Virtual Media]
fatal: [...]: FAILED! => {"msg": "ResourceNotFound... /redfish/v1/Managers/iDRAC.Embedded.1/VirtualMedia/CD"}

Cause: On newer iDRAC, VirtualMedia moved from:

• Old: /redfish/v1/Managers/iDRAC.Embedded.1/VirtualMedia/CD
• New: /redfish/v1/Systems/System.Embedded.1/VirtualMedia/2

[akrzos]

Thank you for the detailed findings, if you have that hardware available now did you want to open a pull request on adding the R7725 hardware type? We can look in to how to support the redfish changes for newer and older idrac versions as well.

[acmenezes]

Hello @akrzos , I'm sorry for the delay answering here. I had that lab for just two weeks and our testing task had a very tight deadline. We barely made what we needed. All the changes I made had to be made directly on the already deployed machines. So I couldn't work on the source code itself. I'm happy to check it out if I have access on one of those for at least another week. But I guess that passes through all the request, business justification and approval. Let me know if there is a way I can contribute. Happy to do it.