anchor.diff: -FROM php:7.2-fpm
  +FROM php:7.2-fpm-alpine
   MAINTAINER Przemyslaw Lis <przemek@concertoplatform.com>
   
   ARG CRAN_MIRROR=https://cloud.r-project.org/
   
  +COPY . /usr/src/concerto/
  +COPY build/php/php.ini /usr/local/etc/php/php.ini
  +COPY build/nginx/nginx.conf /etc/nginx/nginx.conf
  +COPY build/nginx/concerto.conf /etc/nginx/sites-available/concerto.conf
  +COPY build/php-fpm/php-fpm.conf /usr/local/etc/php-fpm.conf
  +COPY build/php-fpm/www.conf /usr/local/etc/php-fpm.d/www.conf
  +ADD https://raw.githubusercontent.com/vishnubob/wait-for-it/master/wait-for-it.sh /
  +
   RUN apt-get update -y \
    && apt-get -y install gnupg \
  + && echo 'deb http://ftp.debian.org/debian stretch-backports main' | tee /etc/apt/sources.list.d/backports.list \
    && echo "deb http://cran.rstudio.com/bin/linux/debian stretch-cran35/" | tee -a /etc/apt/sources.list \
    && apt-key adv --no-tty --keyserver keys.gnupg.net --recv-key 'E19F5F87128899B192B1A2C2AD5F960A256A04AF' \
    && apt-get update -y \
  
positive.code:     posix \
      sockets \
      xml \
      zip
  
  COPY . /usr/src/concerto/
  COPY build/php/php.ini /usr/local/etc/php/php.ini
  COPY build/nginx/nginx.conf /etc/nginx/nginx.conf
  COPY build/nginx/concerto.conf /etc/nginx/sites-available/concerto.conf
  COPY build/php-fpm/php-fpm.conf /usr/local/etc/php-fpm.conf
  COPY build/php-fpm/www.conf /usr/local/etc/php-fpm.d/www.conf
  ADD https://raw.githubusercontent.com/vishnubob/wait-for-it/master/wait-for-it.sh /
  
  RUN Rscript -e "install.packages(c('session','RMySQL','jsonlite','catR','digest','rjson','httr'), repos='$CRAN_MIRROR')" \
   && R CMD INSTALL /usr/src/concerto/src/Concerto/TestBundle/Resources/R/concerto5 \
   && chmod +x /wait-for-it.sh \
   && php /usr/src/concerto/bin/console concerto:r:cache \
  
negative.code:     unzip \
      wget \
      zip \
   && apt-get install -y python-certbot-nginx -t stretch-backports \
   && rm -f /var/lib/apt/lists/* \
   && sed -i 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen \
   && locale-gen "en_US.UTF-8" \
   && docker-php-ext-install \
  