adding validation for local_queue provided in cluster config

Author: Fiona-Waters

Diff for: src/codeflare_sdk/utils/generate_yaml.py

@@ -308,6 +308,26 @@ def get_default_kueue_name(namespace: str):
     )
 
 
+def local_queue_exists(namespace: str, local_queue_name: str):
+    # get all local queues in the namespace
+    try:
+        config_check()
+        api_instance = client.CustomObjectsApi(api_config_handler())
+        local_queues = api_instance.list_namespaced_custom_object(
+            group="kueue.x-k8s.io",
+            version="v1beta1",
+            namespace=namespace,
+            plural="localqueues",
+        )
+    except Exception as e:  # pragma: no cover
+        return _kube_api_error_handling(e)
+    # check if local queue with the name provided in cluster config exists
+    for lq in local_queues["items"]:
+        if lq["metadata"]["name"] == local_queue_name:
+            return True
+    return False
+
+
 def write_components(
     user_yaml: dict,
     output_file_name: str,
@@ -324,6 +344,10 @@ def write_components(
     open(output_file_name, "w").close()
     lq_name = local_queue or get_default_kueue_name(namespace)
     cluster_labels = labels
+    if not local_queue_exists(namespace, lq_name):
+        raise ValueError(
+            "local_queue provided does not exist or is not in this namespace. Please provide the correct local_queue name in Cluster Configuration"
+        )
     with open(output_file_name, "a") as outfile:
         for component in components:
             if "generictemplate" in component:
@@ -355,6 +379,10 @@ def load_components(
     components = user_yaml.get("spec", "resources")["resources"].get("GenericItems")
     lq_name = local_queue or get_default_kueue_name(namespace)
     cluster_labels = labels
+    if not local_queue_exists(namespace, lq_name):
+        raise ValueError(
+            "local_queue provided does not exist or is not in this namespace. Please provide the correct local_queue name in Cluster Configuration"
+        )
     for component in components:
         if "generictemplate" in component:
             if (

Diff for: tests/unit_test.py

@@ -344,6 +344,10 @@ def test_cluster_creation_no_mcad_local_queue(mocker):
         "kubernetes.client.CustomObjectsApi.get_cluster_custom_object",
         return_value={"spec": {"domain": "apps.cluster.awsroute.org"}},
     )
+    mocker.patch(
+        "kubernetes.client.CustomObjectsApi.list_namespaced_custom_object",
+        return_value=get_local_queue("kueue.x-k8s.io", "v1beta1", "ns", "localqueues"),
+    )
     config = createClusterConfig()
     config.name = "unit-test-cluster-ray"
     config.mcad = False
@@ -3046,6 +3050,10 @@ def test_cluster_throw_for_no_raycluster(mocker: MockerFixture):
         "codeflare_sdk.utils.generate_yaml.get_default_kueue_name",
         return_value="default",
     )
+    mocker.patch(
+        "codeflare_sdk.utils.generate_yaml.local_queue_exists",
+        return_value="true",
+    )
 
     def throw_if_getting_raycluster(group, version, namespace, plural):
         if plural == "rayclusters":