How to Connect to Aurora RDS MySQL Database with DataGrip about aws-refarch-wordpress HOT 1 OPEN

Jimmy, I expect you are connecting remotely, from your own PC or Mac. The default Firewall rules will not allow Database access directly from the internet (this is almost never wise). However, the tool you are using appears to have SSH tunnel support. You should be able to use a Bastion host to reach the database.
Try;
Use SSH Tunnel: True
Proxy Host: Bastion Host/ Public IP
Proxy User: ec2-user
Auth Type: SSH Key
Proxy Key: My_Security_Group_PEM_File.pem (assuming this allows access to the Bastion)
Don't use SSL as this is Client certificate authentication, which is not used in this case.
For the database itself you should use password access, with the database username and password you chose when launching the templates.

from aws-refarch-wordpress.