There is a MySQL service:
When you first run docker-compose up -- the directory does not mapesa and inside the container there is no files from the host machine (BD).
On the container (docker inspect), section Mounts reports that the directory is mounted: https://i.imgur.com/c4icESp.png.
After removal of this container, and recreation -- all okay.
What could be wrong? This behavior appears only once, at initial startup Docker and until the next reboot of the host machine.
Win 10, 17.09 Docker (Docker Containers).