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fix(api): raise uvicorn keepalive above the proxy reuse window

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uvicorn's default --timeout-keep-alive is 5s, shorter than Caddy's pooled
keepalive idle window, so the proxy reused connections uvicorn had just
closed -> broken pipe / connection reset -> 502. The player's progress/state
POSTs fire every 5s (resonant with the 5s default) and, being non-idempotent,
could not be auto-retried by the proxy, so those 502s reached the user.
Set --timeout-keep-alive 75 so the upstream outlives the proxy's reuse.
This commit is contained in:
npeter83 2026-06-18 15:13:01 +02:00
parent c9453f655f
commit 49dd8da5ed
1 changed files with 6 additions and 1 deletions
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7
backend/entrypoint.sh
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@ -5,4 +5,9 @@ echo "Applying database migrations..."
alembic upgrade head
echo "Starting Siftlode API..."
exec uvicorn app.main:app --host 0.0.0.0 --port 8000 --log-config log_config.json
# --timeout-keep-alive 75: keep idle upstream connections alive longer than the reverse
# proxy's idle-reuse window. uvicorn's default (5s) is shorter than Caddy's pooled-keepalive
# timeout, so Caddy would reuse a connection uvicorn had just closed -> broken pipe / reset
# on the next request -> 502. Non-idempotent POSTs (the player's progress/state writes,
# fired every 5s) can't be auto-retried by the proxy, so those 502s reached the user.
exec uvicorn app.main:app --host 0.0.0.0 --port 8000 --log-config log_config.json --timeout-keep-alive 75