This year’s Xen Project Developer Summit is over! We had two days packed with highly technical sessions that were attended by 120 delegates. Our sessions have – as always – been very interactive with lots of discussions during and after the talks. Of course we did also have lots of time for in-corridor conversations during breaks, which most of us look forward to every year.
Docker is certainly the most influential open source project of the moment. Why is Docker so successful? Is it going to replace Virtual Machines? Will there be a big switch? If so, when?
Let’s look at the past to understand the present and predict the future. Before virtual machines, system administrators used to provision physical boxes to their users. The process was cumbersome, not completely automated, and it took hours if not days. When something went wrong, they had to run to the server room to replace the physical box.
The Rumprun unikernel, based on the driver components offered by rump kernels, provides a means to run existing POSIX applications as unikernels on Xen. This post explains how we got here (it matters!), what sort of things can be solved today, and also a bit of what is in store for the future.