Add embedded Hugging Face token fallback

README.md

@@ -15,12 +15,13 @@ submission poller in a child process.
 
 ## Runtime Environment
 
-The image includes a single-account submission token fallback for the agent
+The image includes single-account ModelHub and Hugging Face token fallbacks for
-platform. Environment variables can override it without rebuilding the image.
+the agent platform. Environment variables can override them without rebuilding
+the image.
 
 - `MODELHUB_XC_TOKEN`, `XC_TOKEN`, or `MODELHUB_TOKEN` for ModelHub API authentication
 - `MODELHUB_JWT_TOKEN` or `JWT_TOKEN` can be used instead when the platform provides a JWT
-- `HF_TOKEN` optional, but recommended for Hugging Face API limits
+- `HF_TOKEN` optional override for the embedded Hugging Face fallback token
 - `STRATEGY_ID` is expected to be injected by the ModelHub agent platform and is attached to submissions for strategy attribution; it is not an API authentication token
 
 Optional tuning:

main.py

@@ -9,7 +9,7 @@ import time
 from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
 from pathlib import Path
 
-from modelhub_submmit_api.defaults import EMBEDDED_MODELHUB_XC_TOKEN
+from modelhub_submmit_api.defaults import EMBEDDED_HF_TOKEN, EMBEDDED_MODELHUB_XC_TOKEN
 
 
 HOST = "0.0.0.0"
@@ -75,7 +75,7 @@ def _worker_command() -> list[str]:
 def _config() -> dict[str, object]:
     return {
         "strategy_id_present": bool(os.getenv("STRATEGY_ID")),
-        "hf_token_present": bool(os.getenv("HF_TOKEN")),
+        "hf_token_present": bool(os.getenv("HF_TOKEN") or EMBEDDED_HF_TOKEN),
         "modelhub_auth_present": _has_modelhub_auth(),
         "config_error": config_error,
         "worker_running": worker is not None and worker.poll() is None,

modelhub_submmit_api/defaults.py

@@ -1 +1,2 @@
 EMBEDDED_MODELHUB_XC_TOKEN = "a14776f6e7ad4c04a1710260613c294c"
+EMBEDDED_HF_TOKEN = "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"

modelhub_submmit_api/runner_common.py

@@ -4,7 +4,7 @@ import argparse
 import os
 from pathlib import Path
 
-from defaults import EMBEDDED_MODELHUB_XC_TOKEN
+from defaults import EMBEDDED_HF_TOKEN, EMBEDDED_MODELHUB_XC_TOKEN
 
 
 DEFAULT_KEY_PATH = Path("KEY.md")
@@ -43,6 +43,8 @@ def ensure_tokens(args: argparse.Namespace) -> None:
 
     if not getattr(args, "hf_token", None):
         args.hf_token = os.getenv("HF_TOKEN") or values.get("HF_TOKEN")
+    if not getattr(args, "hf_token", None):
+        args.hf_token = EMBEDDED_HF_TOKEN
 
     modelhub_token = getattr(args, "modelhub_token", None)
     if not modelhub_token: