anchor.diff:  
   COPY . $HOME
   COPY config/database.k8s.yml $HOME/config/database.yml
  -RUN rails assets_rails:install assets_rails:resolve assets:precompile
  +RUN rails assets:precompile
   
  -FROM ruby:2.5.1-alpine3.7
  +FROM ruby:2.6.1-alpine3.9
   
   ENV \
     HOME=/app \
  
positive.code: 
  RUN bundle install -j4 --without development test deployment
  
  FROM ruby:2.5.1-alpine3.7 AS node-dependencies
  
  ENV \
    HOME=/app \
  
negative.code: FROM ruby:2.6.1-alpine3.9 AS bundle-dependencies
  LABEL maintainer '8398a7 <8398a7@gmail.com>'
  
  ENV HOME /app
  