Containers offer the same isolation, scalability, and disposability of VMs, but because they don’t carry the payload of their own OS instance, they’re lighter weight (that is, they take up less space) than VMs. And, they’re disposable - when you no longer need to run the application, you take down the VM.įor more information on VMs, see " Virtual Machines: An Essential Guide."Ĭontainers take this abstraction to a higher level - specifically, in addition to sharing the underlying virtualized hardware, they share an underlying, virtualized OS kernel as well. VMs make better use of resources and are much easier and more cost-effective to scale than traditional infrastructure. Each VM runs its own OS instance, and you can isolate each application in its own VM, reducing the chance that applications running on the same underlying physical hardware will impact each other. Virtual machines (VMs) are servers abstracted from the actual computer hardware, enabling you to run multiple VMs on one physical server or a single VM that spans more than one physical server. This leaves you the choice of running multiple applications on a single server and hoping one doesn’t hog resources at the expense of the others or dedicating one server per application, which wastes resources and doesn’t scale. In traditional infrastructure, applications run on a physical server and grab all the resources they can get. It may be easier or more helpful to understand containers as the latest point on the continuum of IT infrastructure automation and abstraction.
Learn docker and kubernetes full#
The following video (10:59) provides a great introduction to Kubernetes basics.ĭownload the full report, Containers in the enterprise(PDF, 1.4 MB) Containers vs. This ecosystem enables organizations to deliver a high-productivity Platform-as-a-Service (PaaS) that addresses multiple infrastructure-related and operations-related tasks and issues surrounding cloud-native development so that development teams can focus solely on coding and innovation. Today, Kubernetes and the broader container ecosystem are maturing into a general-purpose computing platform and ecosystem that rivals - if not surpasses - virtual machines (VMs) as the basic building blocks of modern cloud infrastructure and applications. Kubernetes is Greek for helmsman or pilot, hence the helm in the Kubernetes logo (link resides outside IBM).
It is a descendant of Borg, a container orchestration platform used internally at Google. Kubernetes was first developed by engineers at Google before being open sourced in 2014.
Kubernetes - also known as “k8s” or “kube” - is a container orchestration platform for scheduling and automating the deployment, management, and scaling of containerized applications.
Learn how Kubernetes enables cost-effective cloud-native development. Kubernetes is an open source container orchestration platform that automates deployment, management and scaling of applications.
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