Allow dynamic quota creation and removal by QuanMPhm · Pull Request #287 · nerc-project/coldfront-plugin-cloud

QuanMPhm · 2026-01-21T16:13:06Z

Closes nerc-project/operations#1391. This is how I would suggest to review this PR.

Two CLI commands have been added, add_quota_to_resource.py and remove_quota_from_resource.py. I would suggest understanding those two commands first. These commands allow us to dynamically add/remove quotas instead of having them hard-coded as they are currently done. These commands don't impact the quota objects in the clusters, nor the quota attributes in allocations. Their full impact is illustrated when used within the typical user workflow, or in tandem with validate_allocations.py. I would now suggest checking the changes to functional/openshift/test_allocations.py to see the full implications of this PR. The other functional test cases only contain minor changes.

Afterwards, tasks.py, validate_allocations.py, and the allocator base and subclasses should be reviewed. They are the main consumers of quota information. All other changes relatively minor.

Follow-up issues to write based on these comments:
openshift vm quotas
idempotency for register_default_quotas
storage billing
Clean-up hard-coded attributes

src/coldfront_plugin_cloud/management/commands/add_quota_to_resource.py

src/coldfront_plugin_cloud/management/commands/calculate_storage_gb_hours.py

src/coldfront_plugin_cloud/tests/functional/openshift/test_allocation.py

QuanMPhm · 2026-01-29T17:28:11Z

@knikolla I addressed all your suggestions on Slack except one:

To migrate the display name of an attribute
Before, since the attributes were stored in code, the migrations were also stored in code
Now, since the adding of new quota is a command, migrating the display name of an attribute should also be a command.

May I ask that I implement this feature in a subsequent PR, to prevent this PR from bloating even more? If not, I will implement this after I receive answers for my questions above.

joachimweyl · 2026-01-29T17:31:50Z

What is the impact of this omission?

QuanMPhm · 2026-01-29T21:47:44Z

@joachimweyl The impact will be that to change the display names of attributes (the names that users will see in the Coldfront UI, i.e OpenShift Limit on CPU Quota) will be a bit inconvenient. An admin will have to do some manual renaming in Coldfront. Still doable, but not in a way that's quick and programmatic. We ideally want a CLI command that makes renaming easier, but I didn't want this PR to take too long to review because of the February maintenance.

joachimweyl · 2026-01-30T16:01:19Z

Makes sense to me.

src/coldfront_plugin_cloud/models/quota_models.py

src/coldfront_plugin_cloud/openstack.py

src/coldfront_plugin_cloud/management/commands/add_quota_to_resource.py

src/coldfront_plugin_cloud/models/quota_models.py

src/coldfront_plugin_cloud/management/commands/add_openshift_resource.py

naved001

thanks @QuanMPhm! Some basic questions in there as I try to refresh my memory of coldfront. Will do another pass.

naved001 · 2026-02-05T15:00:21Z

src/coldfront_plugin_cloud/management/commands/add_quota_to_resource.py

+class Command(BaseCommand):
+    def add_arguments(self, parser):
+        parser.add_argument(
+            "--display_name",


you have an underscore instead of a dash.

--display_name -> --display-name

naved001 · 2026-02-05T15:03:51Z

src/coldfront_plugin_cloud/management/commands/add_quota_to_resource.py

+            help="The default quota value for the storage attribute. In GB",
+        )
+        parser.add_argument(
+            "--resource_name",


--resource_name -> --resource-name

naved001 · 2026-02-05T15:09:50Z

src/coldfront_plugin_cloud/management/commands/add_quota_to_resource.py

+            type=str,
+            default="",
+            help="Name of quota as it appears on invoice. Required if --is-storage-type is set.",
+        )


how come you didn't specify dest= for some of these arguments?

I normally wouldn't include dest=, and didn't review closely enough what Copilot generated this code for me. I've removed the dest=. Apologies

naved001 · 2026-02-05T16:01:14Z

src/coldfront_plugin_cloud/management/commands/add_quota_to_resource.py

+    def handle(self, *args, **options):
+        if options["resource_type"] == "storage" and not options["invoice_name"]:
+            logger.error(
+                "--invoice-name must be provided when storage type is  `storage`."


"when resource type is storage."

My idea is any quota that is relevant for storage billing should have the resource type storage, such as:

QUOTA_REQUESTS_IBM_STORAGE = "OpenShift Request on IBM Storage Quota (GiB)" QUOTA_REQUESTS_NESE_STORAGE = "OpenShift Request on NESE Storage Quota (GiB)"

sure, I am just pointing out that the error message says "storage type is storage" instead of "resource type is storage". You are checking options["resource_type"], there's no storage_type

naved001 · 2026-02-05T16:15:31Z

src/coldfront_plugin_cloud/management/commands/add_quota_to_resource.py

+            "--invoice-name",
+            type=str,
+            default="",
+            help="Name of quota as it appears on invoice. Required if --is-storage-type is set.",


where's --is-storage-type? Did you mean --resource-type is set to storage?

Ah yes. My bad

naved001 · 2026-02-05T16:38:47Z

src/coldfront_plugin_cloud/management/commands/add_openshift_resource.py

            else options["name"],
        )
+
+        # Add common Openshift resources (cpu, memory, etc)


remind how were these resources created before this?

Currently, the information for these quotas are spread in multiple places in the repo. The display names are in attributes.py, the multiplier and static quantities are in tasks.py, other info in other places. The allocation attributes for these quotas were loaded by register_cloud_attributes.py, which consumes the attributes defined in attributes.py.

A by-product of this PR is that now all that info is created and stored in one place.

naved001 · 2026-02-11T16:38:29Z

src/coldfront_plugin_cloud/management/commands/remove_quota_from_resource.py

+
+    def add_arguments(self, parser):
+        parser.add_argument(
+            "--resource_name",


--resource_name -> --resource-name

naved001 · 2026-02-11T16:38:47Z

src/coldfront_plugin_cloud/management/commands/remove_quota_from_resource.py

+            help="Name of the Resource to modify.",
+        )
+        parser.add_argument(
+            "--display_name",


--display_name -> --display-name

src/coldfront_plugin_cloud/management/commands/add_openshift_resource.py

QuanMPhm · 2026-02-13T16:48:59Z

@knikolla @naved001 A one-time command migrate_resource_quota.py has been added.

EDIT: Sorry I've missed some comments. I get to work on them

QuanMPhm · 2026-02-25T19:41:01Z

@knikolla @naved001 This PR is waiting on review. This is my last question

src/coldfront_plugin_cloud/management/commands/register_default_quotas.py

naved001 · 2026-02-26T14:33:57Z

src/coldfront_plugin_cloud/management/commands/add_quota_to_resource.py

+    def handle(self, *args, **options):
+        if options["resource_type"] == "storage" and not options["invoice_name"]:
+            logger.error(
+                "--invoice-name must be provided when reousrce type is `storage`."


type, reousrce -> resource

lol you don't have to apologize. Ironically, I also made at typo in my original comment: type->typo

naved001 · 2026-02-26T14:35:23Z

src/coldfront_plugin_cloud/management/commands/register_default_quotas.py

+            )
+
+        # Define quotas for each resource type
+        openshift_quotas = [


do we need to worry about migrating openshift vm quotas? I know we don't have any current deployment so maybe not?

It can be done in a follow-up patch if not already here. Management commands can be deployed as a separate version debug container for their execution so they don't necessarily require a maintenance window to upgrade.

I've included openshift vm resources in the command. However, it will have the quotas defined in openshift_quotas, so some GPU quotas (i.e H100, A100) will be missing

knikolla

Good work! I think this will be ready with a few minor iterations mostly related to fetching rate data from invoicing and some polish here and there.

I'll do a deeper pass in the afternoon but I don't expect anything big to jump out. Again, good work!

src/coldfront_plugin_cloud/models/quota_models.py

src/coldfront_plugin_cloud/management/commands/calculate_storage_gb_hours.py

src/coldfront_plugin_cloud/openstack.py

QuanMPhm · 2026-02-27T16:51:29Z

@knikolla @naved001 I have responded to all comments so far. In response to this comment, I decided to use register_default_quotas in the test cases to remove some redundant code.

knikolla

Looks good, some questions.

src/coldfront_plugin_cloud/management/commands/register_default_quotas.py

src/coldfront_plugin_cloud/tests/functional/openshift/test_allocation.py

src/coldfront_plugin_cloud/openstack.py

knikolla · 2026-03-03T19:51:12Z

Adding copilot to check if I missed something. If there's valid feedback I will tag you on the relevant comments.

Copilot

Pull request overview

This PR moves quota definitions from hard-coded mappings into per-resource, dynamically managed quota specs stored on the resource, and updates allocators/tasks/commands/tests to consume those specs. It adds management commands to register defaults and to add/remove quotas on a resource so quotas can evolve without code changes.

Changes:

Introduce QuotaSpec/QuotaSpecs models and load quota specs from a resource attribute (Available Quota Resources) in allocators.
Add management commands to register default quotas and to add/remove quota specs on a resource.
Refactor OpenShift/OpenStack allocators, tasks.activate_allocation, allocation validation, and storage billing to use resource-defined quota specs; update functional/unit tests accordingly.

Reviewed changes

Copilot reviewed 26 out of 27 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
src/coldfront_plugin_cloud/tests/unit/test_usage_models.py	Update imports for moved `usage_models`.
src/coldfront_plugin_cloud/tests/unit/test_register_default_quotas.py	New unit tests for `register_default_quotas` behavior/idempotency.
src/coldfront_plugin_cloud/tests/unit/test_fetch_daily_billable_usage.py	Update imports for moved `usage_models`.
src/coldfront_plugin_cloud/tests/unit/test_calculate_quota_unit_hours.py	Ensure test resources have quota specs via `add_quota_to_resource`.
src/coldfront_plugin_cloud/tests/unit/openshift/test_rbac.py	Switch to shared unit OpenShift base allocator.
src/coldfront_plugin_cloud/tests/unit/openshift/base.py	Add mock allocator wrapper to avoid real allocator initialization dependencies.
src/coldfront_plugin_cloud/tests/functional/openstack/test_allocation.py	Adjust tests to rely on registered default quotas and resource quota specs.
src/coldfront_plugin_cloud/tests/functional/openshift_vm/test_allocation.py	Register defaults and customize VM GPU quotas via add/remove quota commands.
src/coldfront_plugin_cloud/tests/functional/openshift/test_allocation.py	Register defaults and expand tests around adding/removing quotas dynamically.
src/coldfront_plugin_cloud/tests/functional/esi/test_allocations.py	Set up ESI quota specs dynamically in test setup.
src/coldfront_plugin_cloud/tests/base.py	Update OpenShift resource creation signature (internal_name) and remove IBM storage flag.
src/coldfront_plugin_cloud/tasks.py	Replace hard-coded quota math with `QuotaSpec`-driven computation.
src/coldfront_plugin_cloud/openstack.py	Replace static quota mappings with resource-defined quota specs grouped by service.
src/coldfront_plugin_cloud/openshift_vm.py	Remove VM-specific hard-coded quota mapping in favor of resource-defined specs.
src/coldfront_plugin_cloud/openshift.py	Remove hard-coded quota mapping; format quotas via resource-defined specs.
src/coldfront_plugin_cloud/models/usage_models.py	New module for pydantic usage/charges models (moved from old location).
src/coldfront_plugin_cloud/models/quota_models.py	New pydantic models for quota specs and validation.
src/coldfront_plugin_cloud/management/commands/validate_allocations.py	Validate allocations based on per-resource quota specs rather than hard-coded mappings.
src/coldfront_plugin_cloud/management/commands/remove_quota_from_resource.py	New command to remove a quota spec from a resource.
src/coldfront_plugin_cloud/management/commands/register_default_quotas.py	New command to populate default quota specs onto OpenShift/OpenStack resources.
src/coldfront_plugin_cloud/management/commands/fetch_daily_billable_usage.py	Update imports for moved `usage_models`.
src/coldfront_plugin_cloud/management/commands/calculate_storage_gb_hours.py	Drive storage billing from resource quota specs of type `storage`.
src/coldfront_plugin_cloud/management/commands/add_quota_to_resource.py	New command to add a quota spec to a resource and create its allocation attribute type.
src/coldfront_plugin_cloud/management/commands/add_openshift_resource.py	Remove IBM storage attribute wiring; add internal cluster name support.
src/coldfront_plugin_cloud/esi.py	Remove ESI hard-coded quota mapping in favor of inherited dynamic behavior.
src/coldfront_plugin_cloud/base.py	Load `QuotaSpecs` from resource attribute in allocator initialization.
src/coldfront_plugin_cloud/attributes.py	Replace IBM storage availability attribute with `Available Quota Resources`; adjust registered allocation quota attributes.

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Copilot · 2026-03-03T19:57:18Z

src/coldfront_plugin_cloud/tests/functional/openstack/test_allocation.py

+        obj_key = allocator.resource_quotaspecs.root[
+            attributes.QUOTA_OBJECT_GB
+        ].quota_label


QuotaSpec.quota_label for OpenStack quotas includes a service prefix (e.g. object.x-account-meta-quota-bytes), but OpenStackResourceAllocator.get_quota() returns quota keys without the service prefix (e.g. x-account-meta-quota-bytes). Using the full quota_label here means the Swift/object-quota assertions will never run (and the later indexing by obj_key would be wrong if it did). Consider splitting on the first . and using just the per-service key when interacting with get_quota() / Swift headers.

Suggested change

obj_key = allocator.resource_quotaspecs.root[

attributes.QUOTA_OBJECT_GB

].quota_label

full_obj_quota_label = allocator.resource_quotaspecs.root[

attributes.QUOTA_OBJECT_GB

].quota_label

obj_key = (

full_obj_quota_label.split(".", 1)[1]

if "." in full_obj_quota_label

else full_obj_quota_label

)

@QuanMPhm please verify this.

This is a valid bug

src/coldfront_plugin_cloud/openstack.py

Copilot · 2026-03-03T19:57:19Z

src/coldfront_plugin_cloud/management/commands/validate_allocations.py

@@ -157,10 +154,12 @@ def handle(self, *args, **options):

                expected_value = allocation.get_attribute(attr)
                current_value = quota.get(key, None)
-                if key == obj_key and expected_value <= 0:
+                if key == OPENSTACK_OBJ_KEY and expected_value <= 0:
                    expected_obj_value = 1


In the OpenStack validation loop, key = quotaspec.quota_label uses the full label (e.g. compute.instances / object.x-account-meta-quota-bytes), but OpenStackResourceAllocator.get_quota() returns a dict keyed by the service-local label (e.g. instances / x-account-meta-quota-bytes). This mismatch makes current_value lookup incorrect and also prevents the OPENSTACK_OBJ_KEY special-case from ever triggering. Consider splitting the quotaspec label (same logic as OpenStackResourceAllocator._extract_quota_label) and validating against the per-service key.

@QuanMPhm please verify this.

Valid. Added assertion on log message to capture bug

Copilot · 2026-03-03T19:57:20Z

src/coldfront_plugin_cloud/tasks.py

-        for coldfront_attr in expected_coldfront_attrs:
+        resource_quotaspecs = allocator.resource_quotaspecs
+        for coldfront_attr, quota_spec in resource_quotaspecs.root.items():
            if not allocation.get_attribute(coldfront_attr):


if not allocation.get_attribute(coldfront_attr): treats a legitimate quota value of 0 as “missing” and will overwrite it with the computed default. Since 0 is a valid quota for several specs, this should check explicitly for is None (or otherwise distinguish unset vs zero).

Suggested change

if not allocation.get_attribute(coldfront_attr):

if allocation.get_attribute(coldfront_attr) is None:

@QuanMPhm this seems like a bug in the current implementation of the code (not PR) you may apply this while you're at it.

Added small change to test case

Copilot · 2026-03-03T19:57:20Z

src/coldfront_plugin_cloud/base.py

+        resource_quota_attr = resource_models.ResourceAttribute.objects.get(
+            resource=resource,
+            resource_attribute_type__name=attributes.RESOURCE_QUOTA_RESOURCES,
+        )
+        self.resource_quotaspecs = QuotaSpecs.model_validate(
+            json.loads(resource_quota_attr.value)
+        )


ResourceAllocator.__init__ unconditionally does ResourceAttribute.objects.get(...RESOURCE_QUOTA_RESOURCES...). If a resource doesn’t have this attribute yet (e.g. newly created resources before register_default_quotas / add_quota_to_resource runs), allocator construction will raise and break workflows like activate_allocation and validate_allocations. Consider handling the missing attribute case with a clearer error (e.g. raise CommandError with guidance) or defaulting to an empty quota spec set where appropriate.

Suggested change

resource_quota_attr = resource_models.ResourceAttribute.objects.get(

resource=resource,

resource_attribute_type__name=attributes.RESOURCE_QUOTA_RESOURCES,

)

self.resource_quotaspecs = QuotaSpecs.model_validate(

json.loads(resource_quota_attr.value)

)

try:

resource_quota_attr = resource_models.ResourceAttribute.objects.get(

resource=resource,

resource_attribute_type__name=attributes.RESOURCE_QUOTA_RESOURCES,

)

self.resource_quotaspecs = QuotaSpecs.model_validate(

json.loads(resource_quota_attr.value)

)

except resource_models.ResourceAttribute.DoesNotExist:

# If the resource does not yet have quota resources configured,

# default to an empty quota specification set.

self.resource_quotaspecs = QuotaSpecs.model_validate({})

@QuanMPhm seems reasonable.

Added a clearer error message

src/coldfront_plugin_cloud/management/commands/remove_quota_from_resource.py

src/coldfront_plugin_cloud/management/commands/add_quota_to_resource.py

Copilot · 2026-03-03T19:57:21Z

src/coldfront_plugin_cloud/management/commands/remove_quota_from_resource.py

+            type=str,
+            help="Name of the Resource to modify.",
+        )
+        parser.add_argument(
+            "--display-name",
+            type=str,


The command-line args --resource-name and --display-name are not marked required=True. As written, running the command without them will pass None into Resource.objects.get(name=...) and fail with an unhelpful exception. Make these arguments required (and/or validate and raise a CommandError with a clear message).

Suggested change

type=str,

help="Name of the Resource to modify.",

)

parser.add_argument(

"--display-name",

type=str,

type=str,

required=True,

help="Name of the Resource to modify.",

)

parser.add_argument(

"--display-name",

type=str,

required=True,

@QuanMPhm seems reasonable.

src/coldfront_plugin_cloud/management/commands/calculate_storage_gb_hours.py

QuanMPhm requested review from Milstein, jtriley, knikolla and naved001 January 21, 2026 16:13

QuanMPhm commented Jan 21, 2026

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Allow dynamic quota creation and removal

9b0b39f

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	if not allocation.get_attribute(coldfront_attr):
	if allocation.get_attribute(coldfront_attr) is None:

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