anchor.diff:      php7-mbstring \
       php7-tokenizer \
       php7-xmlwriter \
  +    php7-session \
       php7-common \
  -    php7-cli;
  -
  -RUN apk --update add --no-cache --update \
  -    libjpeg-turbo-dev \
  -    imagemagick \
  -    php7-imagick;
  -
  -RUN apk --update add --no-cache --update \
  -    pngquant;
  -
  -RUN apk --update add --no-cache --update \
  -    gifsicle \
  -    optipng;
  -
  -RUN apk --update add --no-cache --update \
  -    libjpeg-turbo-utils \
  -    lcms2-utils;
  -
  -RUN rm -rf /var/cache/apk/*;
  +    php7-cli \
  +    && rm -rf /var/cache/apk/*;
   
   RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
   
   RUN rm -rf /etc/localtime \
       && ln -s /usr/share/zoneinfo/UTC /etc/localtime \
       && echo "UTC" > /etc/timezone
  -
  
positive.code: 	php7-zlib \
  	php7-curl \
  	php7-gd \
  	php7-xml \
  	php7-dom \
  	php7-fpm \
  
negative.code:     git \
      mysql \
      nodejs-lts \
      # libjpeg-turbo-utils \
      # optipng \
      # gifsicle \
      imagemagick \
      php7-phar \
  	php7-pdo \
  	php7-json \
  