/usr/share/tripleo-image-elements/mysql-common/os-config-applier/mnt/ is in python-tripleo-image-elements 0.7.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/tripleo-image-elements/mysql-common/os-config-applier/mnt/state/
/usr/share/tripleo-image-elements/mysql-common/os-config-applier/mnt/state/etc/
/usr/share/tripleo-image-elements/mysql-common/os-config-applier/mnt/state/etc/mysql/
/usr/share/tripleo-image-elements/mysql-common/os-config-applier/mnt/state/etc/mysql/conf.d/
/usr/share/tripleo-image-elements/mysql-common/os-config-applier/mnt/state/etc/mysql/conf.d/README
/usr/share/tripleo-image-elements/mysql-common/os-config-applier/mnt/state/etc/mysql/dbusers.json
/usr/share/tripleo-image-elements/mysql-common/os-config-applier/mnt/state/etc/mysql/debian.cnf
/usr/share/tripleo-image-elements/mysql-common/os-config-applier/mnt/state/etc/mysql/my.cnf
/usr/share/tripleo-image-elements/mysql-common/os-config-applier/mnt/state/etc/mysql/static-dbusers.json