Custom Resource Quotas Implementation

[mdsue]

Dear ManageIQ Team,

We are writing from TIM, the leading telecommunications company based in Italy. We have a few questions to assist us with our work. We're currently utilizing ManageIQ to build a CMP (Cloud Management Platform).

We are currently using the default resource quotas, such as cpu_allocated, mem_allocated, and storage_allocated. These quotas are defined here: https://github.com/ManageIQ/manageiq/blob/master/spec/models/tenant_quota_spec.rb.

We need to add the following custom resource quotas:

• OpenStack Public IP allocated for a customer
• Windows Server License (We understand this one may be complex)
• Red Hat Enterprise Linux License
• Backup Service

Our main question is how to implement custom quotas in ManageIQ.

We found the concept of the /System/CommonMethods/QuotaStateMachine/quota in the ManageIQ Automate domain as a potential solution: https://pemcg.gitbooks.io/mastering-automation-in-cloudforms-4-1-and-manage/content/provisioning_quota_management/chapter.html.

Custom Quota Implementation Questions

1. Regarding the /System/CommonMethods/QuotaStateMachine/quota object, can you provide us with more details on its usage? Specifically, would we implement this by calling a custom Ruby script that communicates with OpenStack?

2. If the above point is correct, we anticipate needing to perform the following actions with OpenStack:

   • Retrieving actual usage values for custom quotas (e.g., "How many public IPs does this specific customer currently use?").
   • When a user attempts to provision a resource (e.g., a public IP) in ManageIQ but has reached their limit, we expect the resource quota configured in ManageIQ to warn the user that they have finished their allocation.

3. Is there a separate mechanism or scheduled task for refreshing the resource consumption control, or is this management always handled within /System/CommonMethods/QuotaStateMachine/quota?

Thank you for your guidance.