Remove hardcoded cudo regions (#2493)

Author: r4victor

src/dstack/_internal/core/backends/cudo/compute.py

@@ -41,13 +41,15 @@ def get_offers(
     ) -> List[InstanceOfferWithAvailability]:
         offers = get_catalog_offers(
             backend=BackendType.CUDO,
+            locations=self.config.regions,
             requirements=requirements,
         )
         offers = [
             InstanceOfferWithAvailability(
                 **offer.dict(), availability=InstanceAvailability.AVAILABLE
             )
             for offer in offers
+            # in-hyderabad-1 is known to have provisioning issues
             if offer.region not in ["in-hyderabad-1"]
         ]
         return offers

src/dstack/_internal/core/backends/cudo/configurator.py

@@ -17,17 +17,6 @@
 )
 from dstack._internal.core.models.backends.base import BackendType
 
-REGIONS = [
-    "no-luster-1",
-    "se-smedjebacken-1",
-    "gb-london-1",
-    "se-stockholm-1",
-    "us-newyork-1",
-    "us-santaclara-1",
-]
-
-DEFAULT_REGION = "no-luster-1"
-
 
 class CudoConfigurator(Configurator):
     TYPE = BackendType.CUDO
@@ -39,8 +28,6 @@ def validate_config(self, config: CudoBackendConfigWithCreds, default_creds_enab
     def create_backend(
         self, project_name: str, config: CudoBackendConfigWithCreds
     ) -> BackendRecord:
-        if config.regions is None:
-            config.regions = REGIONS
         return BackendRecord(
             config=CudoStoredConfig(
                 **CudoBackendConfig.__response__.parse_obj(config).dict()