feat: Model Registry CopyModel BYOSA

Google APIs · copybara-github · commit 62e4ecb2f439 · 2026-04-13T15:37:53.000-07:00
PiperOrigin-RevId: 899215526
diff --git a/google/cloud/aiplatform/v1/model_service.proto b/google/cloud/aiplatform/v1/model_service.proto
@@ -768,6 +768,18 @@ message CopyModelRequest {
   // Customer-managed encryption key options. If this is set,
   // then the Model copy will be encrypted with the provided encryption key.
   EncryptionSpec encryption_spec = 3;
+
+  // Optional. The user-provided custom service account to use to do the copy
+  // model. If empty, [Vertex AI Service
+  // Agent](https://cloud.google.com/vertex-ai/docs/general/access-control#service-agents)
+  // will be used to access resources needed to upload the model. This account
+  // must belong to the destination project where the model is copied to,
+  // i.e., the project specified in the `parent` field of this request and
+  // have the Vertex AI Service Agent role in the source project.
+  //
+  // Requires the user copying the Model to have the
+  // `iam.serviceAccounts.actAs` permission on this service account.
+  string custom_service_account = 7 [(google.api.field_behavior) = OPTIONAL];
 }
 
 // Details of
