* Fix stale AIO sandbox cache reuse
* Address AIO sandbox review feedback
* Distinguish sandbox health check failures
* Keep local discovery recoverable when the runtime check fails
LocalContainerBackend.discover() shares _is_container_running, which now
raises on transient daemon errors instead of returning False. Discovery has
no exception handling in _discover_or_create_with_lock(_async), so a brief
Docker hiccup turned a recoverable "could not verify, create instead" into a
hard acquire failure. Catch the check failure inside discover() and return
None so an unverifiable container is simply not adopted, restoring the
pre-change fall-through while keeping raise-on-unknown semantics protecting
the destroy path.
Reported by fancy-agent on PR #3494.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* Narrow the not-found match in container inspect error handling
A bare "not found" substring also matches transient failures like "command
not found" or "context not found", which would misclassify a check error as
"container definitely gone" and bypass the raise-on-unknown contract. Keep
Docker's specific "No such object"/"No such container" phrases, and only
trust a generic "not found" (Apple Container) when the message names the
inspected container or refers to a container/object.
Reported by WillemJiang on PR #3494.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
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