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@terpz fixed your first comment.
so I let you to try to fix the other one. Thank you!
myssql:5.7 did not support ARM. MySQL 8 images has ARM support, but only the oracle variants, not the images with the âdebianâ suffix.
There is an other MySQL image which is maintained by the MySQL team: mysql/mysql-server
It has ARM support for MySQL 8 but not for MySQL 5.7.
MariaDB is similar to MySQL but not the same. They have a compatibility description: MariaDB versus MySQL - Compatibility - MariaDB Knowledge Base
I donât know if switching ot MariaDB is better or worse than using MySQL, but that is decision which is not related to Docker.