anchor.diff:  # We do this to avoid npm install when we're only changing code
   WORKDIR /npm
   COPY ["package.json", "package.json"]
  -RUN npm install --development --no-optional
  +RUN npm install --production --no-optional
   
   # Add the code and copy over the node_modules-catalog
   WORKDIR /application
  
positive.code: 
  # Copy files used by Gulp.
  COPY ["config", "config"]
  COPY ["public", "public"]
  COPY ["gulpfile.js", "gulpfile.js"]
  COPY ["package.json", "package.json"]
  
  
  RUN npm run build && \
      npm prune
  
  # Copy source files, so changes does not trigger gulp.
  COPY ["app.js", "app.js"]
  
negative.code: FROM kthse/kth-nodejs-web:2.0-alpine
  
  MAINTAINER KTH Webb "cortina.developers@kth.se"
  
  