| """Vast.ai credential handling (operator-side), mirroring the RunPod auth module. | |
| The Vast REST client authenticates via the ``VAST_API_KEY`` environment variable, set | |
| by the **operator** on the control-plane host. Env-only by | |
| design, exactly like ``RUNPOD_API_KEY``: it is never written to config files or shipped | |
| to workers (the instance self-destroy backstop uses the Vast-injected, instance-scoped | |
| ``CONTAINER_API_KEY`` instead). | |
| """ | |
| from __future__ import annotations | |
| from .._auth import ensure_provider_auth, load_provider_key | |
| _ENV_VAR = "VAST_API_KEY" | |
| def load_api_key() -> str | None: | |
| """API key from the environment (operator configuration).""" | |
| return load_provider_key(_ENV_VAR) | |
| def ensure_auth() -> str: | |
| """Ensure ``VAST_API_KEY`` is set; raise if unavailable.""" | |
| return ensure_provider_auth(_ENV_VAR, "no Vast API key found; set VAST_API_KEY on the control-plane host") | |