#343 Separate to find the causing package

Author: danielbrendel

dockerfile

@@ -21,18 +21,18 @@ WORKDIR /var/www/html
 
 # Install system dependencies
 RUN apt-get update \
- && apt-get install -y \
-        build-essential \
-        libpng-dev \
+ && apt-get install -y build-essential || exit 1
+RUN apt-get install libpng-dev \
         libjpeg-dev \
         libonig-dev \
-        libxml2-dev \
-        libzip-dev \
+        libxml2-dev || exit 1
+
+RUN apt-get install libzip-dev \
         zip \
         unzip \
         git \
-        default-mysql-client \
- && apt-get clean \
+        default-mysql-client  || exit 1
+RUN apt-get clean \
  && rm -rf /var/lib/apt/lists/* \
 # Install PHP extensions
  && docker-php-ext-install \