Max open files set to 1024

[odoucet]

ulimit is not set on MySQL server, so they start with the default "Max open files" == 1024.

It's a problem when we try to use open_files_limit or innodb_open_files and set it to a higher limit.

EDIT
one could launch docker with --ulimit option. Maybe this could just be documented ?

[yosifkit]

Sorry for the super long tail. 🙇‍♂️

This is a general issue with running anything in a Docker container. With the limited space for text on the Docker Hub, I'd rather not document general Docker issues on a specific image; the Docker Docs are fairly comprehensive and there is also the Docker Community Forums, the Docker Community Slack, or Stack Overflow.