Add creation context to online deployment from rest (#35565)

Author: nemanjarajic

sdk/ml/azure-ai-ml/azure/ai/ml/_schema/_deployment/online/online_deployment.py

@@ -15,6 +15,7 @@
 from azure.ai.ml._schema.core.fields import ExperimentalField, NestedField, StringTransformedEnum, UnionField
 from azure.ai.ml._utils.utils import camel_to_snake
 from azure.ai.ml.constants._common import BASE_PATH_CONTEXT_KEY, PublicNetworkAccess
+from azure.ai.ml._schema.job.creation_context import CreationContextSchema
 
 from .data_collector_schema import DataCollectorSchema
 from .liveness_probe import LivenessProbeSchema
@@ -69,6 +70,7 @@ class ManagedOnlineDeploymentSchema(OnlineDeploymentSchema):
     )
     private_network_connection = ExperimentalField(fields.Bool())
     data_collector = NestedField(DataCollectorSchema)
+    creation_context = NestedField(CreationContextSchema, dump_only=True)
 
     @post_load
     def make(self, data: Any, **kwargs: Any) -> Any:

sdk/ml/azure-ai-ml/azure/ai/ml/entities/_deployment/online_deployment.py

@@ -850,6 +850,7 @@ def _from_rest_object(cls, resource: RestOnlineDeploymentData) -> "ManagedOnline
                 else None
             ),
             provisioning_state=deployment.provisioning_state if hasattr(deployment, "provisioning_state") else None,
+            creation_context=resource.system_data,
         )
 
     def _merge_with(self, other: Any) -> None: