anchor.diff:  
   # gpg keys listed at https://github.com/nodejs/node#release-team
   RUN set -ex \
  +  && keyservers="hkp://p80.pool.sks-keyservers.net:80 ha.pool.sks-keyservers.net hkps.pool.sks-keyservers.net pool.sks-keyservers.net keyserver.ubuntu.com"; \
     && for key in \
       94AE36675C464D64BAFA68DD7434390BDBE9B9C5 \
       FD3A5288F042B6850C66B31F09FE44734EB7990E \
  
positive.code:     77984A986EBC2AA786BC0F66B01FBB92821C587A \
      8FCCA13FEF1D0C2E91008E09770F7A9A5AE15600 \
    ; do \
      gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" || \
      gpg --keyserver hkp://ipv4.pool.sks-keyservers.net --recv-keys "$key" || \
      gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" ; \
    done
  
  ENV NODE_VERSION 8.12.0
  
negative.code: EXPOSE 3300
  CMD [ "npm", "run", "docker-start" ]
  
  # EXPECTS: a2 at 3000, kafka at 2181, openlrs at 8080
  