improve initial commit

docker_build/php/Dockerfile

@@ -53,8 +53,9 @@ RUN { \
 # Install composer
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
 
-WORKDIR "/var/www/app"
 
 # Add users/groups with uid 1000
 RUN groupadd --gid ${GID} "group${GID}" \
    && useradd --uid ${UID} --gid ${GID} --create-home "user${UID}"
+
+WORKDIR "/var/www/app"