The compose split (2026-08-09) renamed the data plane to meshcore-infra-*
containers; the hardcoded meshcore-analytics-mosquitto-1/-timescaledb-1
references broke user creation. Resolve both container names from docker
ps at script start (infra names preferred, generic suffix fallback).
Two live-E2E bugs:
1. mosquitto only re-reads password_file on SIGHUP; the reconciler reloads
every ~60s but a device may connect before then and gets CONNACK 135.
The script now sends kill -HUP 1 after mosquitto_passwd -b and -D so
credentials are valid/revoked immediately.
2. The flock was held through the entire discovery watch (up to hours),
blocking every other newuser run. Release before the passive log-poll
and re-acquire before the mutation phase.
gadgethd