Can't get the hello world to run... something is amiss in the instructions. I get to here, using windows:
C:\Users\kkss\hellonode>docker build -t gcr.io/<HIDDEN>/hello-node:v1 .
An error occurred trying to connect: Post http://%2F%2F.%2Fpipe%2Fdocker_engine/v1.23/build?buildargs=... usetmems=&cpushares=0&dockerfile=Dockerfile&labels=%7B%7D&memory=0&memswap=0&rm=1&shmsize=0&t=gcr.io%2F<HIDDEN>%2Fhello-node%3Av1&ulimits=null: open //./pipe/docker_engine: The system cannot find the file specified.