Server-side technology has been on a steep development
curve over recent years, as architects and system engineers
have worked to streamline and optimize their workflows,
as well as improve the performance of their applications.
Virtualization was one of the major breakthroughs on this
curve and has now been a part of the I T landscape for a long
time. By running multiple virtual machines (VMs) on a single
server, each running its own operating system and staying
independent from each other, I T departments have been able
to better utilize their hardware resources and optimize their
Containerization has taken virtualization one step further
by allowing applications to run in dedicated environments
that are in turn hosted by a common operating system kernel.
By utilizing a shared OS kernel, containers are portable, light
on resources, and extremely scalable, making them a much
more powerful and versatile solution than VMs.
THE MAIN ADVANTAGES OF CONTAINERS
The characteristics that make containers so easily portable
are the same characteristics that make them so perfect for
modern cloudbased architecture.
First, each container runs without dependencies so the
developer has complete control over the environment that
their app runs in without being limited by an inflexible
OS. Furthermore, this same independence ensures that
the environment will be the same anywhere, whether it is
deployed in the public cloud, on a
private cloud, or in the local test
The fact that containers share
an OS kernel makes them much
smaller than a VM, which requires
its own OS. This makes it very easy
to scale containers across a cloud
cluster, because they use fewer
resources. It also makes them much
more efficient in terms of CPU
usage, memory, and storage. All of
this makes for a solution that is fast
to initialize, quick to respond, and
most importantly, scales massively
in a matter of seconds.