feat: change COMPOSER_HOME

Author: zhengkunwang223

php/5.6/Dockerfile

@@ -17,7 +17,7 @@ RUN apt-get update && \
 RUN chmod uga+x /usr/local/bin/install-php-extensions && \
     chmod +x /usr/bin/composer 
 
-ENV COMPOSER_HOME=/usr/bin/composer
+ENV COMPOSER_HOME=/tmp/.composer
 
 RUN usermod -u 1000 www-data && groupmod -g 1000 www-data
 

php/7/Dockerfile

@@ -25,7 +25,7 @@ RUN curl -o /tmp/composer-setup.php https://getcomposer.org/installer \
 
 RUN chmod uga+x /usr/local/bin/install-php-extensions 
 
-ENV COMPOSER_HOME=/usr/bin/composer
+ENV COMPOSER_HOME=/tmp/.composer
 
 RUN usermod -u 1000 www-data && groupmod -g 1000 www-data