The synchronous handler.merge() call blocked the uvicorn event loop for
the entire merge duration (38s for a 19-member helm virtual repo), stalling
all other requests on the same worker during that window.
Wrapping the call in asyncio.to_thread() releases the event loop while the
CPU-bound YAML parse/merge/dump runs in the default thread pool, allowing
health checks and other requests to be served concurrently.
Measured impact (19-member helm-all, single worker):
Before: first concurrent /health stalled for 37721ms
After: all concurrent /health requests served in <65ms
The change is at the generic handler dispatch site, so it applies to all
current and future _VirtualHandler implementations without modification.
Also fix base_url/package keys merged onto a single line in
examples/single-file/remotes.yaml, which prevented docker-compose startup.
Repository types now live under dedicated top-level keys instead of a
shared remotes: block distinguished by a type field:
remotes: caching proxy remotes (no type field needed)
virtuals: virtual merged-index repositories
locals: local upload repositories
Routes for local repos move from /api/v1/remote/ to /api/v1/local/.
config.py gains get_virtual_config() and get_local_config() lookups.
Root endpoint now reports all three sections. Drop root conf.d/ (was
an exact duplicate of examples/conf.d-method/).
Reviewed-on: #31
Adds a new virtual repo type that merges indexes from multiple member remotes
of the same package type. Currently supports helm (index.yaml merge with URL
rewriting). Member fetches run in parallel; merged index is Redis-cached at
min(mutable_ttl) across members.
Reviewed-on: #30
examples/single-file/remotes.yaml — original monolithic config
examples/conf.d-method/ — one yaml per remote (alpine, github, pypi)
docker-compose updated to mount from examples/single-file/.
unkinben