Configuration for WordPress is working but still a few things to tweak, test, and enhance.

Config/WordpressExample/docker-compose.main.yml

@@ -11,48 +11,70 @@
 # - Change ports
 
 # TBD locate these at ../../Volumes and create `prep.sh` script.
-volumes:
-  wordpress:
-  db:
+#volumes:
+#  wordpress:
+#  db:
 
 services:
 
-  wp-app:
-    image: wordpress
-    restart: always
-    ports:
-      - 8080:80
-    environment:
-      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
+    container_name: wp-db
+    image: mariadb:lts
     restart: always
+    volumes:
+      - ../../Volumes/WordPress/mariadb:/var/lib/mysql
+    healthcheck:
+      test: ["CMD", "healthcheck.sh", "--connect", "--innodb_initialized"]
+      start_period: 5s
+      interval: 5s
+      timeout: 5s
+      retries: 10
     environment:
-      MYSQL_DATABASE: $WORDPRESS_DB_NAME
-      MYSQL_USER: $WORDPRESS_DB_USER
-      MYSQL_PASSWORD: WORDPRESS_DB_PASSWORD
-      MYSQL_RANDOM_ROOT_PASSWORD: '1'
+      # https://mariadb.com/docs/server/server-management/automated-mariadb-deployment-and-administration/docker-and-mariadb/mariadb-server-docker-official-image-environment-variables
+      MARIADB_DATABASE: $MARIADB_DATABASE
+      MARIADB_USER: $MARIADB_USER
+      MARIADB_PASSWORD: MARIADB_PASSWORD
+      MARIADB_ROOT_PASSWORD: $MARIADB_ROOT_PASSWORD
+      MARIADB_AUTO_UPGRADE: $MARIADB_AUTO_UPGRADE
       WP_CPU_DB: $WP_CPU_DB
       WP_MEM_DB: $WP_MEM_DB
-    volumes:
-      - db:/var/lib/mysql
     deploy:
       mode: global
       resources:
         limits:
           cpus: $WP_CPU_DB
           memory: $WP_MEM_DB
+
+  wp-app:
+    container_name: wp-app
+    image: wordpress:latest
+    restart: always
+    ports:
+      - 8080:80
+    depends_on:
+      wp-db:
+        condition: service_healthy
+    links:
+      - wp-db
+    volumes:
+      - ../../Volumes/WordPress/wordpress:/var/www/html
+    environment:
+      WORDPRESS_ADMIN_USERNAME: $WORDPRESS_ADMIN_USERNAME
+      WORDPRESS_ADMIN_PASSWORD: $WORDPRESS_ADMIN_PASSWORD
+      WORDPRESS_DB_HOST: wp-db
+      WORDPRESS_DB_NAME: $MARIADB_DATABASE
+      # TBD/TODO: Does not work, but recommended. :(
+      #WORDPRESS_DB_USER: $MARIADB_USER
+      #WORDPRESS_DB_PASSWORD: $MARIADB_PASSWORD
+      # Works, but not recommended. Lol.
+      WORDPRESS_DB_USER: root
+      WORDPRESS_DB_PASSWORD: $MARIADB_ROOT_PASSWORD
+      WORDPRESS_DEBUG: $WORDPRESS_DEBUG
+      WP_CPU: $WP_CPU
+      WP_MEM: $WP_MEM
+    deploy:
+      mode: global
+      resources:
+        limits:
+          cpus: $WP_CPU
+          memory: $WP_MEM

Config/WordpressExample/env.main

@@ -1,35 +1,63 @@
 # This file should be copied to `.env` and have its values changes as needed.
 
+## Docker ##
+
 COMPOSE_BAKE=true
 
+## End Docker ##
+
+
+## WordPress ##
+
+# TBD/TODO: These do not actually seem to work.
+WORDPRESS_ADMIN_USERNAME='wp_user'
+WORDPRESS_ADMIN_PASSWORD='wordpress_password'
+
+# Uncomment this to get debug output in the log.
+WORDPRESS_DEBUG=1
+
+## End WordPress ##
+
+
 ## Database ##
-WORDPRESS_DB_HOST=db
-WORDPRESS_DB_USER=exampleuser
-WORDPRESS_DB_PASSWORD=examplepass
-WORDPRESS_DB_NAME=exampledb
-MYSQL_RANDOM_ROOT_PASSWORD=1
+
+MARIADB_DATABASE='wordpress'
+
+MARIADB_USER='db_user'
+MARIADB_PASSWORD='database_password'
+
+MARIADB_ROOT_PASSWORD='db_root_password'
+
+# Comment this if you do not want MariaDB to run upgrade scripts on new versions.
+MARIADB_AUTO_UPGRADE=1
+
+## End Database ##
+
 
 ## Performance ##
+
 # Standard Minimum
 #WP_CPU=1.00
-#WP_MEM=2.0G
-#WP_CPU_DB=
-#WP_MEM_DB=
+#WP_MEM=2.00G
+#WP_CPU_DB=1.00
+#WP_MEM_DB=1.00G
 
 # Standard Recommended
 #WP_CPU=1.00
-#WP_MEM=4.0G
-#WP_CPU_DB=
-#WP_MEM_DB=
+#WP_MEM=4.00G
+#WP_CPU_DB=1.00
+#WP_MEM_DB=0.50G
 
-# tested Minimum
-#WP_CPU=
-#WP_MEM=
-#WP_CPU_DB=
-#WP_MEM_DB=
+# Tested Minimum
+#WP_CPU=0.35
+#WP_MEM=0.35G
+#WP_CPU_DB=0.15
+#WP_MEM_DB=0.15G
 
 # Tested Recommended
-WP_CPU=
-WP_MEM=
-WP_CPU_DB=
-WP_MEM_DB=
+WP_CPU=0.50
+WP_MEM=0.50G
+WP_CPU_DB=0.25
+WP_MEM_DB=0.25G
+
+## End Performance ##