raise warning if extra provider config given

src/_nebari/stages/infrastructure/__init__.py

@@ -6,6 +6,7 @@
 import re
 import sys
 import tempfile
+import warnings
 from typing import Annotated, Any, Dict, List, Literal, Optional, Tuple, Type, Union
 
 from pydantic import ConfigDict, Field, field_validator, model_validator
@@ -613,11 +614,23 @@ def check_provider(cls, data: Any) -> Any:
                     data[provider] = provider_enum_model_map[provider]()
             else:
                 # if the provider field is invalid, it won't be set when this validator is called
-                # so we need to check for it explicitly here, and set the `pre` to True
+                # so we need to check for it explicitly here, and set mode to "before"
                 # TODO: this is a workaround, check if there is a better way to do this in Pydantic v2
                 raise ValueError(
                     f"'{provider}' is not a valid enumeration member; permitted: local, existing, aws, gcp, azure"
                 )
+            set_providers = {
+                provider
+                for provider in provider_name_abbreviation_map.keys()
+                if provider in data and data[provider]
+            }
+            expected_provider_config = provider_enum_name_map[provider]
+            extra_provider_config = set_providers - {expected_provider_config}
+            if extra_provider_config:
+                warnings.warn(
+                    f"Provider is set to {getattr(provider, 'value', provider)},  but configuration defined for other providers: {extra_provider_config}"
+                )
+
         else:
             set_providers = [
                 provider

tests/tests_unit/test_schema.py

@@ -161,3 +161,13 @@ def test_set_provider(config_schema, provider):
     result_config_dict = config.model_dump()
     assert provider in result_config_dict
     assert result_config_dict[provider]["kube_context"] == "some_context"
+
+
+def test_provider_config_mismatch_warning(config_schema):
+    config_dict = {
+        "project_name": "test",
+        "provider": "local",
+        "existing": {"kube_context": "some_context"},  # <-- Doesn't match the provider
+    }
+    with pytest.warns(UserWarning, match="configuration defined for other providers"):
+        config_schema(**config_dict)

tests/tests_unit/test_stages.py

@@ -53,6 +53,7 @@ def test_check_immutable_fields_immutable_change(
     mock_model_fields, mock_get_state, terraform_state_stage, mock_config
 ):
     old_config = mock_config.model_copy(deep=True)
+    old_config.local = None
     old_config.provider = schema.ProviderEnum.gcp
     mock_get_state.return_value = old_config.model_dump()