README.md updates

README.md

@@ -1,6 +1,34 @@
 ## EquilibrateIT.com
 
 A containerized Wordpress, MySQL stack using [this official upstream project Dockerfile](https://github.com/docker-library/wordpress/blob/3f1a0cab9f2f938bbc57f5f92ec11eeea4511636/latest/php8.2/apache/Dockerfile)
+### Environment Variables
+
+*MySQL*
+
+ - MYSQL_ROOT_PASSWORD
+     - The password for the MySQL root database user
+ - MYSQL_DATABASE
+     - The name of the MySQL database to be created
+ - MYSQL_USER
+     - The name of the MySQL user to be created. Usually for web application db clients.
+ - MYSQL_PASSWORD
+     - The password for the above user. Best to store this encrypted at rest,
+       via either LUKS or secret management software.
+
+*Wordpress*
+
+ - WORDPRESS_DB_NAME
+     - The name of the database to be used by the Wordpress db client connection.
+       Should match the MYSQL_DATABASE variable unless otherwise customized.
+ - WORDPRESS_DB_HOST
+     - Should match the docker-compose.yml service name so as to be properly
+       resolved via the container name service of choice.
+ - WORDPRESS_DB_USER
+     - The name of the MySQL user created for the wordpress client to use.
+ - WORDPRESS_DB_PASSWORD
+     - The password for the above user. Best to store this encrypted at rest,
+       via either LUKS or secret management software.
+
 ### Files
 ---
 #### docker-compose.yml