* Fix password validation on container restart
Only validate password for new users, not when updating existing users.
This prevents container crashes when TUDUDI_USER_PASSWORD is set but
doesn't meet current validation requirements for existing users.
* Fix entrypoint crash when app user doesn't exist
Check if app user exists before getting UID/GID to prevent
'id: unknown user app' error on restart. Fall back to build-time
defaults (APP_UID/APP_GID) if user is missing.
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Co-authored-by: antanst <>
c7220c3060