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fix(gateway,cron): activate fallback_model when primary provider auth fails

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When the primary provider raises AuthError (expired OAuth token,
revoked API key), the error was re-raised before AIAgent was created,
so fallback_model was never consulted. Now both gateway/run.py and
cron/scheduler.py catch AuthError specifically and attempt to resolve
credentials from the fallback_providers/fallback_model config chain
before propagating the error.

Closes #7230
This commit is contained in:
Tranquil-Flow 2026-04-11 08:16:37 +10:00 • committed by Teknium
parent f7f7588893
commit ee83a710f0
3 changed files with 153 additions and 1 deletions
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23
cron/scheduler.py
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@ -895,6 +895,7 @@ def run_job(job: dict) -> tuple[bool, str, str, Optional[str]]:
resolve_runtime_provider,
format_runtime_provider_error,
)
from hermes_cli.auth import AuthError
try:
runtime_kwargs = {
"requested": job.get("provider") or os.getenv("HERMES_INFERENCE_PROVIDER"),
@ -902,6 +903,28 @@ def run_job(job: dict) -> tuple[bool, str, str, Optional[str]]:
if job.get("base_url"):
runtime_kwargs["explicit_base_url"] = job.get("base_url")
runtime = resolve_runtime_provider(**runtime_kwargs)
except AuthError as auth_exc:
# Primary provider auth failed — try fallback chain before giving up.
logger.warning("Job '%s': primary auth failed (%s), trying fallback", job_id, auth_exc)
fb = _cfg.get("fallback_providers") or _cfg.get("fallback_model")
fb_list = (fb if isinstance(fb, list) else [fb]) if fb else []
runtime = None
for entry in fb_list:
if not isinstance(entry, dict):
continue
try:
fb_kwargs = {"requested": entry.get("provider")}
if entry.get("base_url"):
fb_kwargs["explicit_base_url"] = entry["base_url"]
if entry.get("api_key"):
fb_kwargs["explicit_api_key"] = entry["api_key"]
runtime = resolve_runtime_provider(**fb_kwargs)
logger.info("Job '%s': fallback resolved to %s", job_id, runtime.get("provider"))
break
except Exception as fb_exc:
logger.debug("Job '%s': fallback %s failed: %s", job_id, entry.get("provider"), fb_exc)
if runtime is None:
raise RuntimeError(format_runtime_provider_error(auth_exc)) from auth_exc
except Exception as exc:
message = format_runtime_provider_error(exc)
raise RuntimeError(message) from exc