The brand-new Fan overlay network system technology
will be implemented in the test images of the Ubuntu Cloud operating
system for the Google Compute Engine and Amazon Web Services (AWS) cloud
hosting providers.
Fan overlay network for container addresses is a new
innovation from Canonical that promises to deliver the fastest and most
scalable address expansion mechanism in the container world by enabling
cloud users to grow the number of LXD and Docker containers that can be
addressed in just one cloud environment.
"Containers are transforming the way people think
about virtual machines (LXD) and apps (Docker)," says Mark Shuttleworth
on his blog. "They give us much better performance and much better
density for virtualisation in LXD, and with Docker, they enable new ways
to move applications between dev, test and production."
Containers offer better performance than traditional KVM and ESX hypervisors
In order to better explain how the new Fan overlay
network system works for the Ubuntu operating system, Mark Shuttleworth
wrote a lengthy blog post
where he stated, among many other interesting things, that containers
provide much better performance and density over traditional KVM and ESX
hypervisors.
According to Dustin Kirkland, a member of
Canonical's Ubuntu Product and Strategy team, it would appear that
containers come in no more than two complementary forms,
application-centric containers like Rocket and Docker, as well as full
machine containers from LXD.
However, the most important fact to know about the
new Fan overlay network system technology is that it has been designed
from the ground up to be capable of expanding the address space by 250x
on each container host.
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