GitLab

Ensure the runners are terminated

The GPU drivers take a while to update their free memory reporting, so we need
to wait until the values converge with what we're expecting before proceeding
to start another runner in order to get an accurate picture.

This cleans up the logging for GPU discovery a bit, and can
serve as a foundation to report GPU information in a future UX.

* Add preflight OPTIONS handling and update CORS config

- Implement early return with HTTP 204 (No Content) for OPTIONS requests in allowedHostsMiddleware to optimize preflight handling.

- Extend CORS configuration to explicitly allow 'Authorization' headers and 'OPTIONS' method when OLLAMA_ORIGINS environment variable is set.

* allow auth, content-type, and user-agent headers

* Update routes.go

- FROM /path/to/{safetensors,pytorch}
- FROM /path/to/fp{16,32}.bin
- FROM model:fp{16,32}

The model processing was recently changed to be deferred but
this test scenario hadn't been adjusted for that change in behavior.

This moves all the env var reading into one central module
and logs the loaded config once at startup which should
help in troubleshooting user server logs

This also bumps up the default to be 50 queued requests
instead of 10.

This gives us more headroom on the scheduler tests to tamp
down some flakes.

log when the waiting for the process to stop to help debug when other tasks execute during this wait.
expire timer clear the timer reference because it will not be reused.
close will clean up expireTimer if calling code has not already done this.

fix runner expire during active use.  Clearing the expire timer as it is used.  Allowing the finish to assign an expire timer so that the runner will expire after no use.

- return descriptive error messages when unauthorized to create blob or push a model
- display the local public key associated with the request that was denied

Prior refactoring passes accidentally removed the logic to bypass VRAM
checks for CPU loads.  This adds that back, along with test coverage.

This also fixes loaded map access in the unit test to be behind the mutex which was
likely the cause of various flakes in the tests.