- Create pgbouncer.ini.j2 with auth_type plain (no MD5 hash needed)
- Create userlist.txt.j2 with vault db_password
- Add Ansible tasks to deploy both files before docker-compose
- Mount pgbouncer files as read-only in compose template
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>