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To be honest - I think it's a timing thing - virtualization wasn't popular initially but VMWare did a great marketing job. Then any hyper-visor became acceptable. Now - VPS-style containers are becoming acceptable. IE: Docker.
Being too early can kill you. If you think your idea is awesome but too early, my advice is to keep trying for as long as it takes. Docker was not my first attempt at solving this particular problem :) [1] [2] [3]
Hackernews traffic spike! You can signup and create a Dockerfile - we've just paused instance deployment for a couple of hours as we add more servers. Sorry for the inconvenience.
I think that even if [deck drop instance] is clearer than [dockerfile image container] it would be better to use [dockerfile image container] it's the standard set forth from docker, sticking to the standard makes interoperating easier for everyone.
I'd have to agree that the standard Docker terminology would be much preferred. Your business covers what is a pretty cutting edge, advanced concept right now. Your customers are likely to be at least somewhat understanding of the standard terminology. Your custom terminology tripped me up as well, despite having a reasonable grasp of the higher level Docker terminology.
Other than that, this looks great! I'm excited for you guys.
I'm in a similar problem space to you. After a year of defining my own 'simpler' terminology, decided to abandon it in favour of being consistent with the more popular albeit complex terminology.