anchor.diff:  FROM node:8.9-alpine
   LABEL maintainer="Marco Mornati <marco@mornati.net>"
   
  -ENV GHOST_VERSION="1.20.3"                                  \
  +ENV GHOST_VERSION="1.21.1"                                  \
       GHOST_INSTALL="/var/lib/ghost"                          \
       GHOST_CONTENT="/var/lib/ghost/content"                  \
       GHOST_USER="node"                                       \
  
positive.code: ### ### ### ### ### ### ### ### ###
  # Builder layer
  # Update Ghost + Node version at lines: 5-7 and 45-48
  
  FROM node:8.9-alpine as ghost-builder
  
  
negative.code:         --url http://localhost:2368             \
          --dbpath "$GHOST_CONTENT/data/ghost.db"             && \
      echo "---             S P A C E R             ---"      && \
      su-exec node ghost config paths.contentPath "$GHOST_CONTENT";
  
  # Copy entrypoint script
  COPY run-ghost.sh $GHOST_INSTALL
  