anchor.diff:      && usermod -d /var/lib/mongodb -a -G nogroup mongodb \
       && usermod -d /var/lib/redis redis \
   
  +# build nginx set misc
  +    && curl -sL "https://github.com/simpl/ngx_devel_kit/archive/v$NGINX_DEVEL_KIT_VERSION.tar.gz" -o dev-kit.tar.gz \
  +    && mkdir -p /usr/src/nginx/ngx_devel_kit \
  +    && tar -xof dev-kit.tar.gz -C /usr/src/nginx/ngx_devel_kit --strip-components=1 \
  +    && rm dev-kit.tar.gz \
  +
  +    && curl -sL "https://github.com/openresty/set-misc-nginx-module/archive/v$NGINX_SET_MISC_MODULE_VERSION.tar.gz" -o ngx-misc.tar.gz \
  +    && mkdir -p /usr/src/nginx/set-misc-nginx-module \
  +    && tar -xof ngx-misc.tar.gz -C /usr/src/nginx/set-misc-nginx-module --strip-components=1 \
  +    && rm ngx-misc.tar.gz \
  +
   # add nginx repo
       && curl -s https://nginx.org/keys/nginx_signing.key | apt-key add - \
       && cp /etc/apt/sources.list /etc/apt/sources.list.bak \
  
positive.code:     VESTA=/usr/local/vesta \
      GOLANG_VERSION=1.9.3 \
      NGINX_BUILD_DIR=/usr/src/nginx \
      NGINX_VERSION=1.13.8 \
      NGINX_PAGESPEED_VERSION=1.12.34.3 \
      NGINX_PSOL_VERSION=1.12.34.2 \
  
negative.code: 
  # default fcgi and php to 7.1
      && mv /usr/bin/php-cgi /usr/bin/php-cgi-old \
      && ln -s /usr/bin/php-cgi7.1 /usr/bin/php-cgi \
      && update-alternatives --set php /usr/bin/php7.1 \
      && update-alternatives --set phar /usr/bin/phar7.1 \
      && update-alternatives --set phar.phar /usr/bin/phar.phar7.1 \
  