dstack offer fixes: (#3038)

- [x] Added older-server compatibility (to exclude `repos`
- [x] Use backend from offer

Author: peterschmidt85

src/dstack/_internal/core/compatibility/gpus.py

@@ -0,0 +1,13 @@
+from typing import Optional
+
+from dstack._internal.core.compatibility.runs import get_run_spec_excludes
+from dstack._internal.core.models.common import IncludeExcludeDictType
+from dstack._internal.server.schemas.gpus import ListGpusRequest
+
+
+def get_list_gpus_excludes(request: ListGpusRequest) -> Optional[IncludeExcludeDictType]:
+    list_gpus_excludes: IncludeExcludeDictType = {}
+    run_spec_excludes = get_run_spec_excludes(request.run_spec)
+    if run_spec_excludes is not None:
+        list_gpus_excludes["run_spec"] = run_spec_excludes
+    return list_gpus_excludes

src/dstack/_internal/server/services/gpus.py

@@ -79,8 +79,8 @@ def _process_offers_into_backend_gpus(
     """Transforms raw offers into a structured list of BackendGpus, aggregating GPU info."""
     backend_data: Dict[BackendType, Dict] = {}
 
-    for backend, offer in offers:
-        backend_type = backend.TYPE
+    for _, offer in offers:
+        backend_type = offer.backend
         if backend_type not in backend_data:
             backend_data[backend_type] = {"gpus": {}, "regions": set()}
 

src/dstack/api/server/_gpus.py

@@ -2,6 +2,7 @@
 
 from pydantic import parse_obj_as
 
+from dstack._internal.core.compatibility.gpus import get_list_gpus_excludes
 from dstack._internal.core.models.runs import RunSpec
 from dstack._internal.server.schemas.gpus import GpuGroup, ListGpusRequest, ListGpusResponse
 from dstack.api.server._group import APIClientGroup
@@ -17,6 +18,6 @@ def list_gpus(
         body = ListGpusRequest(run_spec=run_spec, group_by=group_by)
         resp = self._request(
             f"/api/project/{project_name}/gpus/list",
-            body=body.json(),
+            body=body.json(exclude=get_list_gpus_excludes(body)),
         )
         return parse_obj_as(ListGpusResponse, resp.json()).gpus