there is a map with a marker, and the docker don't generate a new certificate all the time

srcs/requirements/wordpress/Dockerfile

@@ -18,12 +18,13 @@ RUN rm -rf /var/lib/apt/lists/*
 COPY ./conf/www.conf /etc/php7/php-fpm.d/
 RUN mkdir /run/php/
 
-ARG WP_DIR
+ARG WP_VOLUME_DIR
 ARG MAX_UPLOAD_SIZE
 ARG EXECUTION_TIME
 
-# create wp directory
-RUN mkdir -p ${WP_DIR} 
+# create and empty volume dir
+RUN mkdir -p ${WP_VOLUME_DIR} && \
+	rm -rf ${WP_VOLUME_DIR}/*
 
 # replace max file size upload and execution time
 RUN sed -i "s/\(upload_max_filesize = \).*\(M\)/\1${MAX_UPLOAD_SIZE}\2/g" /etc/php7/php.ini && \
@@ -36,9 +37,6 @@ RUN adduser -S www-data && \
 
 ENV PHP_VERSION="php-fpm7"
 
-# empty /var/www/html folder to avoid it to rewrite volume
-#RUN rm -rf ${WP_DIR}/*
-
 # install wp-cli : https://wp-cli.org/#installing
 RUN curl -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar &&\
 	chmod +x wp-cli.phar && \