Docker Online Training |Docker Training

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What is Docker?

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What is Docker?

• There are two ways of looking at Docker. The
  first approach involves seeing Docker containers
  as really lightweight virtual machines, while the
  second approach is to see Docker as a software
  packaging and delivery platform. This latter
  approach has proven a lot more helpful to human
  developers and resulted in widespread adoption of
  the technology.

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An Overview of Docker Containers

• Traditionally, cloud service providers used
  virtual machines to isolate running applications
  from one another.
• A hypervisor, or host operating system, provides
  virtual CPU, memory and other resources to many
  guest operating systems.
• Each guest OS works as if it is running on an
  actual physical hardware and it is, ideally,
  unaware of other guests running on the same
  physical server.

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• However there are several problems with
  virtualization. First, the provisioning of
  resources takes time.
• Each virtual disk image is large and bulky and
  getting a VM ready for use can take up to a
  minute.
• Second and a more important issue system
  resources are used inefficiently.
• OS kernels are control freaks that want to manage
  everything thats supposedly available to them.
  So when a guest OS thinks 2GB of memory is
  available to it, it takes control of that memory
  even if the applications running on that OS uses
  only half of it.

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Docker Kubernetes
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• On the other hand, when we run containerized
  applications, we virtualize the operating system
  itself, not the hardware.
• Now, instead of providing virtual hardware to a
  VM, you provide a virtual OS to your application.
  
• You can run multiple applications and impose
  limitations on their resource utilization if you
  want, and each application will run oblivious to
  the hundreds of other containers it is running
  alongside.

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Contact

• If you want to Learn Docker and Kubernetes online
  Training Contact Visual path. Visual path is
  Leading Training Institute for Docker and
  Kubernetes online Training in Hyderabad. For
  More Details Call Whatsapp _at_9989971070

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