anchor.diff:          php${PHP_MAJOR_VERSION}-zip \
           php${PHP_MAJOR_VERSION}-zlib \
           ${PHP_EXTENSION} \
  +        yaml \
           wget \
       && adduser -D  -g '' -s /sbin/nologin -u 1000 docker \
       ## composer
  
positive.code:     org.label-schema.vcs-type="Git" \
      org.label-schema.vcs-url="https://github.com/smizy/docker-php"
  
  ENV PHP_MAJOR_VERSION  ${VERSION}
  ENV XDEBUG_VERSION     2.4.1
  
  RUN set -x \
      && apk --no-cache --update add \
  
negative.code:         build-base \  
          git \
          php${PHP_MAJOR_VERSION}-dev \
          yaml-dev \
      && wget -q -O - https://pecl.php.net/get/xdebug-${PECL_XDEBUG_VERSION}.tgz \
          | tar -xzf - -C /tmp \
      && cd /tmp/xdebug-${PECL_XDEBUG_VERSION} \
      && phpize \
      && ./configure --prefix=/usr \
      && make \
      && make test \
      && make install \
      && rm -rf /tmp/xdebug* \
      ## yaml
      && wget -q -O - https://pecl.php.net/get/yaml-${PECL_YAML_VERSION}.tgz \
          | tar -xzf - -C /tmp \
      && cd /tmp/yaml-${PECL_YAML_VERSION} \
      && phpize \
      && ./configure --prefix=/usr \
      && make \
      && make install \
      && rm -rf /tmp/yaml* \    
      ## webgrind (xdebug profile analyzer)
      && mkdir -p /code \
      && cd /code \
  