MySQL

DATABASE_URL=mysql://user:password@host:3306/dbname

DB_CONNECTION=mysql
DB_HOST=db.<namespace>.svc.cluster.local
DB_PORT=3306
DB_DATABASE=myapp
DB_USERNAME=myapp
DB_PASSWORD=change-me

php artisan migrate --force

WORDPRESS_DB_HOST=db.<namespace>.svc.cluster.local
WORDPRESS_DB_NAME=wordpress
WORDPRESS_DB_USER=wordpress
WORDPRESS_DB_PASSWORD=change-me

import mysql from "mysql2/promise";

const pool = mysql.createPool(process.env.DATABASE_URL);
const [rows] = await pool.query("SELECT 1");