In this article, author Deepak Vohra discusses the details of migrating an on-prem database to a MySQL database on the cloud, using AWS Database Migration Service.

The test image I am using is only ~150k, so I don't think the problem is with size. Also, I print out the value immediately before I insert it into the DB and it gives the expected binary garbage.

There may be times when you'll want to copy a MySQL database to a website. For example, if you are going to make changes to your company website, you should edit a copy of the site, not the live ...

Use this guide to learn how to easily create and manage a MySQL 8 user with remote access to all databases.