Same bug class just fixed in mattermost.sh: immich, joplin, koha,
mail-archiver, and nextcloud all generated a fresh random
DB/admin password on every single run with no check for an
existing one. Each backs its database with a persistent volume, so
Postgres/MariaDB keeps the password from its first init while the
freshly overwritten .env (or config-main.env for koha) no longer
matches it — any rerun would have locked the app out of its own
database. koha, mail-archiver, and nextcloud also regenerated an
app-level admin login password the same way.
Found by cross-referencing every service with a DB password against
which ones actually guard reuse on rerun (only traccar.sh did,
already correctly) rather than waiting to be told about each one
individually.
Fix mirrors traccar.sh's existing pattern: read the password back out
of the existing .env/config file if present, only generate fresh when
there's genuinely nothing there yet.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NQkdAn3iG5A4WoqU9FHMaN