MySQL

MySQL is one of the four SQL databases the wizard offers. Ignition ships no MySQL driver in the box, so picking MySQL also pulls the connector down for you.

Image	mysql:9 (override with MYSQL_IMAGE in .env)
Catalog kind	database
Provides	sql-database, mysql-compatible
Requires	nothing
Network when split is on	backend

How it reaches a stack

Choose MySQL at the wizard's database prompt. Credentials come from the shared .env database section (DB_USER, DB_PASSWORD, DB_HOST), the same keys every database kind uses, defaulting to ignition / ignition.

When MySQL is the selected database, the dependency resolver attaches the mysql-jdbc driver to every gateway. The connector .jar lands in the gateway's user-lib/jdbc/, which is what makes the database reachable from Ignition. This is the one imperative coupling in the resolver; everything else is declarative capability matching.

Seeding

MySQL ships the container and the JDBC driver, but it does not file-seed a gateway database connection. Create the connection in the gateway once the stack is up, pointing it at db:3306 with the .env credentials.

Post-setup

Configure the gateway's database connection in the UI after docker compose up.