Hi Team,

As part of enhancing our OpenStack RBAC policy management, we are in the process of setting up custom roles for various admin-related activities. 

Custom Roles Used: admin_instance_read,admin_volume_read,admin_network_read,admin_glance_read

Policy Customizations:

# Compute - List all instances across tenants
"os_compute_api:servers:index:get_all_tenants": "rule:context_is_admin or role:admin_instance_read"
"os_compute_api:servers:detail:get_all_tenants": "rule:context_is_admin or role:admin_instance_read"

# Network - Get networks (shared/external/own project)
"get_network": "(rule:admin_only) or (role:reader and project_id:%(project_id)s) or rule:shared or rule:external or rule:context_is_advsvc or role:admin_network_read"

# Volume - List all volumes and snapshots across projects
"volume:get_all": "rule:xena_system_admin_or_project_reader or role:admin_volume_read"
"volume:get_all_snapshots": "rule:xena_system_admin_or_project_reader or role:admin_volume_read"

# Image - List all images including shared/community/public
"get_image": "role:admin or (role:reader and project_id:%(project_id)s) or project_id:%(member_id)s or 'community':%(visibility)s or 'public':%(visibility)s or 'shared':%(visibility)s or role:admin_glance_read"
"get_images": "role:admin or (role:reader and project_id:%(project_id)s) or role:admin_glance_read"

Issue:

Despite the above configurations, listing all instances, images, volumes, and networks across all projects still only works for the admin role. The custom roles (e.g., admin_instance_read, etc.) are not taking effect for cross-project visibility as expected.

Request:

I would appreciate any suggestions or insights on:


Thanks & Regards
Thamanna Farhath N
Associate engineer - R&D
Zybisys IT consulting



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