Files
siftlode/backend/entrypoint.sh
T
peter 6c63df6704 feat: one structured log for every process, with a request id
A deployment printed four different log formats and none of them could be
joined up: uvicorn's log_config.json for the API, a hand-rolled StreamHandler in
main.py for anything not started by uvicorn, logging.basicConfig() in the worker
and in the download child (no timestamp at all), and alembic's fileConfig.
app/logs.py replaces all four with one JSON line per event (OpenTelemetry's log
data model, no SDK): ts, level, severity, source, logger, event code, message,
attributes, plus the correlation the context carries — request id, account,
download job.

Redaction is applied at the HANDLER, not at the call sites: every message, every
attribute and every traceback is scrubbed on the way out, so a secret cannot
leak by being forgotten at one of ~125 call sites. Passwords, tokens, cookies,
secret config values and email addresses never reach a line.

The access log is ours now (`http.request`): the route template instead of the
concrete path, the status, the duration and the account — and never the query
string, which uvicorn's access log printed on every single request (`?account=`,
`?source=`, the `?token=` of a share link). A well-formed client request id is
accepted and echoed in X-Request-Id, so a browser line and a server line join up.
The account comes from `request.state`, filled by the auth dependency: the
middleware is the outermost one, so it runs outside SessionMiddleware and in a
different task context.

`log_level` becomes an admin knob (sysconfig), applied without a restart and
re-applied at startup — best-effort on purpose, since a logging knob must never
be what stops the app from booting. Every compose service gets bounded json-file
logs (3×50 MB): Docker keeps every line forever by default, and the API now
writes one line per request.

Verified on the localdev stack: JSON everywhere including alembic and the
worker, the query strings gone, a supplied X-Request-Id echoed and logged, and
three /healthz hits of which only the one made while the level was DEBUG
produced a line.
2026-09-16 01:37:02 +02:00

23 lines
1.2 KiB
Bash

#!/bin/sh
set -e
echo "Applying database migrations..."
alembic upgrade head
echo "Starting Siftlode API..."
# --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.
#
# SECURITY: do NOT add --proxy-headers / --forwarded-allow-ips here. ratelimit.client_key trusts
# X-Forwarded-For only when the TRUE socket peer is a configured proxy (TRUSTED_PROXY_IPS); those
# flags would make uvicorn overwrite request.client from the forgeable XFF, defeating that check and
# reopening the rate-limit bypass (SA3).
#
# No --log-config: app/logs.py configures logging for every Siftlode process (api, worker, download
# child, alembic) in one place, and it silences uvicorn's access log in favour of our own
# `http.request` line (route template, no query string, request id).
exec uvicorn app.main:app --host 0.0.0.0 --port 8000 --timeout-keep-alive 75