> - I realized that last time I didn't execute the required pre-installation
> steps (which include setting up docker for instance) but this didn't seem to
> pose any problems. Should I scratch everything and start over? One worrying
> aspect is this thing about docker storage, which I don't really get...
Docker storage is a performance thing (the default is incredibly
slow). I don't know if you have to scratch it and start over - you
can selectively apply those steps to each host as you go in most