rm default and adds explicit

packages/aws-library/src/aws_library/ec2/_client.py

@@ -2,7 +2,7 @@
 import logging
 from collections.abc import Iterable, Sequence
 from dataclasses import dataclass
-from typing import cast
+from typing import Literal, cast
 
 import aioboto3
 import botocore.exceptions
@@ -30,9 +30,6 @@
 _logger = logging.getLogger(__name__)
 
 
-ALL = None
-
-
 @dataclass()
 class SimcoreEC2API:
     client: EC2Client
@@ -69,25 +66,24 @@ async def ping(self) -> bool:
     @ec2_exception_handler(_logger)
     async def get_ec2_instance_capabilities(
         self,
-        instance_type_names: set[InstanceTypeType] | None = ALL,
+        instance_type_names: set[InstanceTypeType] | Literal["ALL"],
     ) -> list[EC2InstanceType]:
         """Returns the ec2 instance types from a list of instance type names (sorted by name)
 
         Arguments:
-            instance_type_names -- the types to filter with
+            instance_type_names -- the types to filter with or "ALL", to return all EC2 possible instances
 
         Raises:
             Ec2InstanceTypeInvalidError: some invalid types were used as filter
             ClustersKeeperRuntimeError: unexpected error communicating with EC2
 
         """
-        if instance_type_names is None:
-            assert ALL is None  # nosec
+        if instance_type_names == "ALL":
             selection_or_all_if_empty = []
         else:
             selection_or_all_if_empty = list(instance_type_names)
             if len(selection_or_all_if_empty) == 0:
-                msg = "`instance_type_names` cannot be an empty set. Set as None if all"
+                msg = "`instance_type_names` cannot be an empty set. Use either a selection or 'ALL'"
                 raise ValueError(msg)
 
         instance_types = await self.client.describe_instance_types(

packages/aws-library/tests/test_ec2_client.py

@@ -122,7 +122,7 @@ async def test_get_ec2_instance_capabilities(
 async def test_get_ec2_instance_capabilities_returns_all_options(
     simcore_ec2_api: SimcoreEC2API,
 ):
-    instance_types = await simcore_ec2_api.get_ec2_instance_capabilities()
+    instance_types = await simcore_ec2_api.get_ec2_instance_capabilities("ALL")
     assert instance_types
     # NOTE: this might need adaptation when moto is updated
     assert 700 < len(instance_types) < 828

packages/service-library/src/servicelib/rabbitmq/rpc_interfaces/clusters_keeper/ec2_instances.py

@@ -1,3 +1,5 @@
+from typing import Literal
+
 from models_library.api_schemas_clusters_keeper import CLUSTERS_KEEPER_RPC_NAMESPACE
 from models_library.api_schemas_clusters_keeper.ec2_instances import EC2InstanceTypeGet
 from models_library.rabbitmq_basic_types import RPCMethodName
@@ -7,7 +9,7 @@
 
 
 async def get_instance_type_details(
-    client: RabbitMQRPCClient, *, instance_type_names: set[str]
+    client: RabbitMQRPCClient, *, instance_type_names: set[str] | Literal["ALL"]
 ) -> list[EC2InstanceTypeGet]:
     """**Remote method**
 

services/clusters-keeper/src/simcore_service_clusters_keeper/rpc/ec2_instances.py

@@ -1,3 +1,5 @@
+from typing import Literal
+
 from aws_library.ec2 import EC2InstanceType
 from fastapi import FastAPI
 from models_library.api_schemas_clusters_keeper.ec2_instances import EC2InstanceTypeGet
@@ -10,7 +12,7 @@
 
 @router.expose()
 async def get_instance_type_details(
-    app: FastAPI, *, instance_type_names: set[str]
+    app: FastAPI, *, instance_type_names: set[str] | Literal["ALL"]
 ) -> list[EC2InstanceTypeGet]:
     instance_capabilities: list[EC2InstanceType] = await get_ec2_client(
         app

services/clusters-keeper/tests/unit/test_rpc_ec2_instances.py

@@ -37,7 +37,7 @@ async def test_get_instance_type_details_all_options(
     # an empty set returns all options
 
     rpc_response = await get_instance_type_details(
-        clusters_keeper_rabbitmq_rpc_client, instance_type_names=set()
+        clusters_keeper_rabbitmq_rpc_client, instance_type_names="ALL"
     )
     assert rpc_response
     assert isinstance(rpc_response, list)