anchor.diff:      && apk add --no-cache --virtual .phpize-deps $PHPIZE_DEPS \
       && yes '' | pecl install -f apcu \
       && yes '' | pecl install -f xdebug \
  +    && yes '' | pecl install -f yaml \
       && yes '' | pecl install -f redis-4.3.0 \
       && yes '' | pecl install -f imagick \
       && docker-php-ext-enable apcu redis xdebug imagick \
  
positive.code:     && sed -i '1s/^/;Intentionally disabled. Enable via setting env variable XDEBUG_ENABLE to true\n;/' /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini \
      && rm -rf /var/cache/apk/* /tmp/pear/ \
      && apk del .phpize-deps \
      && mkdir -p /tmp/newrelic && cd /tmp/newrelic \
      && wget https://download.newrelic.com/php_agent/archive/${NEWRELIC_VERSION}/newrelic-php5-${NEWRELIC_VERSION}-linux-musl.tar.gz \
      && gzip -dc newrelic-php5-${NEWRELIC_VERSION}-linux-musl.tar.gz | tar --strip-components=1 -xf - \
  
negative.code:         # for webp
          libwebp-dev \
          postgresql-dev \
          # for yaml
          yaml-dev \
          # for imagemagick
          imagemagick \
          imagemagick-libs \
  