Live run surfaced it: this coturn build writes its own startup log lines
("INFO SQLite connection was closed.", "INFO log file opened: ...") to
turnadmin -l's STDOUT, not stderr — 2>/dev/null never caught them, so
they got parsed as if they were usernames, producing nonsensical
"Database has user '2026-...INFO SQLite connection was closed.'" warnings
on a real run. A genuine "user[realm]" line never contains a space; every
log line does, so filtering on that is a simple, build-independent fix.
Also diagnosed the actual underlying failure this surfaced: coturn's live
user database was genuinely empty (both 'asterisk' and 'mattermost' had
cached credential files but neither was registered in the DB) — exactly
the container/volume-recreated-without-db drift this script's consumer
cross-check exists to catch, confirmed against a real run.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01H4k6J1qXXyYxhGEgnJaMvn
Claude
cd1d0e3b40