fix: allow unsetting quota (#1367)

Closes #1365.

Author: leafty

components/renku_data_services/crc/api.spec.yaml

@@ -303,6 +303,9 @@ paths:
         - resource_pools
     patch:
       summary: Update specific fields of an existing resource pool
+      description: |
+        Note that the quota cannot be removed using the PATCH method.
+        To remove the quota, use the PUT method and unset the quota field.
       parameters:
         - in: path
           name: resource_pool_id

components/renku_data_services/crc/apispec.py

@@ -1,6 +1,6 @@
 # generated by datamodel-codegen:
 #   filename:  api.spec.yaml
-#   timestamp: 2026-05-28T15:57:22+00:00
+#   timestamp: 2026-06-29T12:51:11+00:00
 
 from __future__ import annotations
 

components/renku_data_services/crc/core.py

@@ -217,7 +217,7 @@ def validate_resource_pool_put_or_patch(
     classes = (
         [validate_resource_class_patch_or_put(body=rc, method=method) for rc in body.classes] if body.classes else None
     )
-    quota = validate_quota_put_patch(body=body.quota) if body.quota else None
+    quota = validate_quota_put_patch(body=body.quota) if body.quota else RESET if method == "PUT" else None
     remote = None
     match body.remote:
         case apispec.RemoteConfigurationPatchReset() as r:

components/renku_data_services/crc/db.py

@@ -638,6 +638,8 @@ async def update_resource_pool(
             if update.quota is RESET and rp.quota:
                 # Remove the existing quota
                 await self.quotas_repo.delete_quota(name=rp.quota, cluster_id=cluster_id)
+                rp.quota = None
+                quota = None
             elif isinstance(update.quota, models.QuotaPatch) and rp.quota is None:
                 # Create a new quota, the `update.quota` object has already been validated
                 assert update.quota.cpu is not None