add xdebug to Dockerfile

Author: Chemaclass

build/Dockerfile

@@ -4,6 +4,10 @@ RUN apt-get update && \
     apt-get upgrade -y && \
     apt-get install -y git
 
+RUN pecl install -o -f xdebug \
+    && rm -rf /tmp/pear \
+    && docker-php-ext-enable xdebug
+
 COPY --from=composer /usr/bin/composer /usr/bin/composer
 RUN useradd -m dev
 WORKDIR /srv/phel-web-skeleton