28 lines
906 B
Python
28 lines
906 B
Python
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"""Host placement resolution from profile policy and environment."""
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from __future__ import annotations
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import os
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from sandboxer.models import Profile
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def resolve_host(profile: Profile, *, override: str | None = None) -> str:
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if override:
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return override
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env_host = os.environ.get("SANDBOXER_HOST")
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if env_host:
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return env_host
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for candidate in [*profile.placement.prefer, *profile.placement.fallback]:
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mapped = os.environ.get(f"SANDBOXER_HOST_{candidate.upper()}")
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if mapped:
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return mapped
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if candidate in os.environ:
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return os.environ[candidate]
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if profile.placement.prefer:
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return profile.placement.prefer[0]
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if profile.placement.fallback:
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return profile.placement.fallback[0]
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raise ValueError(
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"No host resolved. Set SANDBOXER_HOST or profile placement hosts in environment."
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)
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