It seems like the author was using Vagrant to set up their base Docker machine.
So yes, the author could have run everything on Docker locally, but this was to setup those Docker clusters (Kubernetes and OpenShift).
I did the same thing when experimenting with DC/OS. Running a small cluster on my developer box with 32GB of ram was cheap. Running the same cluster on DigitalOcean gets very expensive:
So yes, the author could have run everything on Docker locally, but this was to setup those Docker clusters (Kubernetes and OpenShift).
I did the same thing when experimenting with DC/OS. Running a small cluster on my developer box with 32GB of ram was cheap. Running the same cluster on DigitalOcean gets very expensive:
http://penguindreams.org/blog/installing-mesosphere-dcos-on-...