Convert Wordpress config to variables.

Config/WordpressExample/docker-compose.main.yml

@@ -1,6 +1,8 @@
 # 2025-10-17 Hyperling
 # Copied and modified from the example here:
 #   https://hub.docker.com/_/wordpress
+# This file should be copied to `docker-compose.yml`.
+# Most configration changes can be done in the env file rather than here.
 
 ## TBDs ##
 # - Move env variables to env.example
@@ -8,6 +10,11 @@
 # - Add CPU and MEM section
 # - Change ports
 
+# TBD locate these at ../../Volumes and create `prep.sh` script.
+volumes:
+  wordpress:
+  db:
+
 services:
 
   wp-app:
@@ -16,25 +23,36 @@ services:
     ports:
       - 8080:80
     environment:
-      WORDPRESS_DB_HOST: db
-      WORDPRESS_DB_USER: exampleuser
-      WORDPRESS_DB_PASSWORD: examplepass
-      WORDPRESS_DB_NAME: exampledb
+      WORDPRESS_DB_HOST: wp-db
+      WORDPRESS_DB_USER: $WORDPRESS_DB_USER
+      WORDPRESS_DB_PASSWORD: $WORDPRESS_DB_PASSWORD
+      WORDPRESS_DB_NAME: $WORDPRESS_DB_NAME
+      WP_CPU: $WP_CPU
+      WP_MEM: $WP_MEM
     volumes:
       - wordpress:/var/www/html
+    deploy:
+      mode: global
+      resources:
+        limits:
+          cpus: $WP_CPU
+          memory: $WP_MEM
 
   wp-db:
     image: mysql:8.0
     restart: always
     environment:
-      MYSQL_DATABASE: exampledb
-      MYSQL_USER: exampleuser
-      MYSQL_PASSWORD: examplepass
+      MYSQL_DATABASE: $WORDPRESS_DB_NAME
+      MYSQL_USER: $WORDPRESS_DB_USER
+      MYSQL_PASSWORD: WORDPRESS_DB_PASSWORD
       MYSQL_RANDOM_ROOT_PASSWORD: '1'
+      WP_CPU_DB: $WP_CPU_DB
+      WP_MEM_DB: $WP_MEM_DB
     volumes:
       - db:/var/lib/mysql
-
-# TBD locate these at ../../Volumes
-volumes:
-  wordpress:
-  db:
+    deploy:
+      mode: global
+      resources:
+        limits:
+          cpus: $WP_CPU_DB
+          memory: $WP_MEM_DB