Added some recipes.

.recipes/wordpress_mariadb/docker-compose.yml

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+# Wordpress with MariaDB
+#
+version: '3'
+services:
+  # https://hub.docker.com/_/wordpress
+  # https://github.com/docker-library/docs/tree/master/wordpress
+  wordpress:
+    image: wordpress:latest
+    restart: unless-stopped
+    # Take a look the possible public port collision.
+    ports:
+      - 8201:80
+    links:
+      - database
+    volumes:
+      # Needs R/W UID:GID 33:33 (www-data:www-data).
+      - ./storage/volumes/wordpress_html:/var/www/html
+    environment:
+      # These variables matter only for a new instance.
+      # In the case of migration take care the wp-config.php.
+      WORDPRESS_DB_HOST: database
+      WORDPRESS_DB_NAME: wordpress
+      WORDPRESS_DB_USER: wordpress
+      WORDPRESS_DB_PASSWORD: secret-1
+      # https://api.wordpress.org/secret-key/1.1/salt/ or
+      # https://passwordsgenerator.net/
+      WORDPRESS_AUTH_KEY: fill_in
+      WORDPRESS_SECURE_AUTH_KEY: fill_in
+      WORDPRESS_LOGGED_IN_KEY: fill_in
+      WORDPRESS_NONCE_KEY: fill_in
+      WORDPRESS_AUTH_SALT: fill_in
+      WORDPRESS_SECURE_AUTH_SALT: fill_in
+      WORDPRESS_LOGGED_IN_SALT: fill_in
+      WORDPRESS_NONCE_SALT: fill_in
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    labels:
+      com.centurylinklabs.watchtower.enable: true
+  # https://hub.docker.com/_/mariadb
+  database:
+    image: mariadb:lts
+    restart: unless-stopped
+    # ports:
+    #  - 3306:3306
+    volumes:
+      # Needs R/W UID:GID 999:999.
+      - ./storage/volumes/mysql:/var/lib/mysql
+      # Needs read UID 999.
+      - ./storage/volumes/mysql_conf_d:/etc/mysql/conf.d
+      - ./storage/volumes/mysql_init_d:/docker-entrypoint-initdb.d
+    environment:
+      MARIADB_AUTO_UPGRADE: "1"
+      MARIADB_INITDB_SKIP_TZINFO: "1"
+      MYSQL_DATABASE: wordpress
+      MYSQL_USER: wordpress
+      # https://passwordsgenerator.net/
+      MYSQL_PASSWORD: secret-1
+      MYSQL_ROOT_PASSWORD: secret-2
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    labels:
+      com.centurylinklabs.watchtower.enable: true