wordpress works now with :

+ volumes in mariadb container
+ db pswd in quotes
+ somes other settings

srcs/requirements/wordpress/conf/wp_entrypoint.sh

@@ -6,10 +6,10 @@ wp core download --path="${WP_DIR}" --allow-root
 
 # create config file :
 wp config create \
-	--dbhost=mariadb \
+	--dbhost="${DB_HOST}" \
 	--dbname="${DB_NAME}" \
 	--dbuser="${DB_USER}" \
-	--dbpass="${DB_PASS}" \
+	--dbpass="${DB_PSWD}" \
 	--path="${WP_DIR}" --allow-root
 
 # install wordpress :
@@ -32,5 +32,5 @@ wp user create \
 chown -R www-data:www-data /var/www/*
 chmod 755 -R /var/www/*
 
-exec ${PHP_VERSION} -FR
+exec "${PHP_VERSION}" -FR