Manually Connecting One Click Wordpress to Managed MySQL Database

I’m trying to allow external connection from a One Click Wordpress to a Managed MySQL Database Cluster via VPC Network.

Wordpress Droplet

I’ve added bind-address = to /etc/mysql/mysql.conf.d/mysqld.cnf

I’ve created CREATE USER 'test'@'[VPC NETWORK HOST]' IDENTIFIED WITH mysql_native_password BY 'password';

Managed Database Cluster

I’ve added Wordpress Droplet as trusted sources.

But nothing seems to work. The command mysql -u test -p returned ERROR 1045 (28000): Access denied. Am I missing something? What is the best way to manually connect Wordpress Droplets to a Managed Database Cluster?

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I’ve found a solution. Since I’ve added my droplet to trusted source, there’s no need to include bind DB connection error was due to missing port at the end of the VPC network host in wp-config.php. So I’ve edited that and connected to MySQL cluster over SSL. :)

Everything is working fine now. But is this the most efficient way for such setup over external VPC mysql? Will there be any impact on speed and resources etc? Sorry, I’m very new to hosting and I’m still finding my way around cloud hosting. Thank you :)