Mysql phpfpm ngnix Docker-compose connecting to AWS RDS database over SSH

Question

Connecting to Amazon RDS database in PHP,

i'm running a local web dev envirement through docker compose, which has the following containers

PHPFPM MYSQL 5.7 PHPMYADMIN NGNIX WORKBENCH

i can connect to my amazon rds database workbench over SSH and i want to do the same in my php config:

This is my current config:

return array(
        'dbHost' => 'db',
        'dbUser' => 'root',
        'dbPass' => 'password',
        'dbName' => 'flowte'
    );