99ece544e5
When dealing with a subcloud where Centos and SystemController have already been upgraded to Debian, Horizon encounters difficulties loading Host Inventory and Software Management pages. This issue arises due to variations in host attributes between different versions. To address this, any expected but missing attributes will be assigned default values before loading the page. Additionally, adding a fix for issues with sphinx version for this package Test Plan: - Select the target subcloud with the previous version. Navigate to Platform -> Host Inventory and confirm the successful loading of the Host table. - Select the target subcloud. Navigate to Platform -> Host Inventory and confirm the ability to load the Edit Host modal and Host details. - Select the target subcloud. Navigate to Platform -> Software Management and confirm the successful loading of patch details for this host. closes-bug: 2032838 Signed-off-by: fperez <fabrizio.perez@windriver.com> Change-Id: I671fcca81c14a787d4c55f823d1dae793fe2df35