fix: remove disabled providers from model dump

currently when running `llama stack run --template starter...` the __disabled__ providers, their models, etc are printed alongside the enabled ones making the output really confusing

in server.py add a utility `remove_disabled_providers` which post-processes the model_dump output to remove any dict with `provider_id: __disabled__`

Signed-off-by: Charlie Doern <cdoern@redhat.com>

llama_stack/distribution/server/server.py

@@ -445,9 +445,7 @@ def main(args: argparse.Namespace | None = None):
     # now that the logger is initialized, print the line about which type of config we are using.
     logger.info(log_line)
 
-    logger.info("Run configuration:")
-    safe_config = redact_sensitive_fields(config.model_dump(mode="json"))
-    logger.info(yaml.dump(safe_config, indent=2))
+    _log_run_config(run_config=config)
 
     app = FastAPI(
         lifespan=lifespan,
@@ -594,6 +592,14 @@ def main(args: argparse.Namespace | None = None):
     uvicorn.run(**uvicorn_config)
 
 
+def _log_run_config(run_config: StackRunConfig):
+    """Logs the run config with redacted fields and disabled providers removed."""
+    logger.info("Run configuration:")
+    safe_config = redact_sensitive_fields(run_config.model_dump(mode="json"))
+    clean_config = remove_disabled_providers(safe_config)
+    logger.info(yaml.dump(clean_config, indent=2))
+
+
 def extract_path_params(route: str) -> list[str]:
     segments = route.split("/")
     params = [seg[1:-1] for seg in segments if seg.startswith("{") and seg.endswith("}")]
@@ -602,5 +608,20 @@ def extract_path_params(route: str) -> list[str]:
     return params
 
 
+def remove_disabled_providers(obj):
+    if isinstance(obj, dict):
+        if (
+            obj.get("provider_id") == "__disabled__"
+            or obj.get("shield_id") == "__disabled__"
+            or obj.get("provider_model_id") == "__disabled__"
+        ):
+            return None
+        return {k: v for k, v in ((k, remove_disabled_providers(v)) for k, v in obj.items()) if v is not None}
+    elif isinstance(obj, list):
+        return [item for item in (remove_disabled_providers(i) for i in obj) if item is not None]
+    else:
+        return obj
+
+
 if __name__ == "__main__":
     main()

llama_stack/distribution/stack.py

@@ -172,7 +172,6 @@ def replace_env_vars(config: Any, path: str = "") -> Any:
                             # Create a copy with resolved provider_id but original config
                             disabled_provider = v.copy()
                             disabled_provider["provider_id"] = resolved_provider_id
-                            result.append(disabled_provider)
                             continue
                     except EnvVarError:
                         # If we can't resolve the provider_id, continue with normal processing