anchor.diff:             make \
              mariadb-dev \
              musl-dev \
  -           openssl-dev \
  +           libressl-dev \
              ruby-dev \
       && apk add --no-cache \
              bash \
  
positive.code:            mariadb-client-libs \
             mariadb-libs \
             nodejs \
             openssl \
             ruby-bigdecimal \
             ruby-io-console \
             ruby-irb \
  
negative.code: FROM alpine:3.5
  
  ENV NOKOGIRI_USE_SYSTEM_LIBRARIES="1"
  
  