Use all Lambda regions by default (#2478)

Author: jvstme

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

@@ -34,6 +34,7 @@
 
 logger = get_logger(__name__)
 
+# where dstack OS images are published
 REGIONS = [
     ("US East, N. Virginia", "us-east-1"),
     ("US East, Ohio", "us-east-2"),

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

@@ -39,7 +39,7 @@ def get_offers(
     ) -> List[InstanceOfferWithAvailability]:
         offers = get_catalog_offers(
             backend=BackendType.LAMBDA,
-            locations=self.config.regions,
+            locations=self.config.regions or None,
             requirements=requirements,
         )
         offers_with_availability = self._get_offers_with_availability(offers)
@@ -90,7 +90,7 @@ def update_provisioning_data(
         if instance_info is not None and instance_info["status"] != "booting":
             provisioning_data.hostname = instance_info["ip"]
             commands = get_shim_commands(authorized_keys=[project_ssh_public_key])
-            # shim is asssumed to be run under root
+            # shim is assumed to be run under root
             launch_command = "sudo sh -c '" + "&& ".join(commands) + "'"
             thread = Thread(
                 target=_start_runner,
@@ -119,8 +119,6 @@ def _get_offers_with_availability(
         }
         availability_offers = []
         for offer in offers:
-            if offer.region not in self.config.regions:
-                continue
             availability = InstanceAvailability.NOT_AVAILABLE
             if offer.region in instance_availability.get(offer.instance.name, []):
                 availability = InstanceAvailability.AVAILABLE

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

@@ -19,26 +19,6 @@
     BackendType,
 )
 
-REGIONS = [
-    "us-south-1",
-    "us-south-2",
-    "us-south-3",
-    "us-west-2",
-    "us-west-1",
-    "us-midwest-1",
-    "us-west-3",
-    "us-east-1",
-    "us-east-2",
-    "us-east-3",
-    "europe-central-1",
-    "asia-south-1",
-    "me-west-1",
-    "asia-northeast-1",
-    "asia-northeast-2",
-]
-
-DEFAULT_REGION = "us-east-1"
-
 
 class LambdaConfigurator(Configurator):
     TYPE = BackendType.LAMBDA
@@ -50,8 +30,6 @@ def validate_config(self, config: LambdaBackendConfigWithCreds, default_creds_en
     def create_backend(
         self, project_name: str, config: LambdaBackendConfigWithCreds
     ) -> BackendRecord:
-        if config.regions is None:
-            config.regions = REGIONS
         return BackendRecord(
             config=LambdaStoredConfig(
                 **LambdaBackendConfig.__response__.parse_obj(config).dict()