What are the differences between Docker and virtual machines? In this article, we’ll compare the differences and provide our insights to help you decide between the two. Before we get started discussing Docker vs. Virtual Machines comparisons, let us first explain the basics. 
What is Docker?
Organizations in today’s world look forward to transforming their business digitally but are constrained by the diverse portfolio of applications, cloud, and on-premises-based infrastructure. Docker solves this obstacle of every organization with a container platform that brings traditional applications and microservices built on Windows, Linux, and mainframe into an automated and secure supply chain.
Docker is a software development tool and a virtualization technology that makes it easy to develop, deploy, and manage applications by using containers. Container refers to a lightweight, stand-alone, executable package of a piece of software that contains all the libraries, configuration files, dependencies, and other necessary parts to operate the application.
In other words, applications run the same irrespective of where they are and what machine they are running on because the container provides the environment throughout the software development life cycle of the application. Since containers are isolated, they provide security, thus allowing multiple containers to run simultaneously on the given host. Also, containers are lightweight because they do not require an extra load of a hypervisor. A hypervisor is a guest operating system like VMWare or VirtualBox, but instead, containers run directly within the host’s machine kernel.
Containers provide the following benefits: 

Reduced IT management resources 
Reduced size of snapshots 
Quicker spinning up apps
Reduced and simplified security updates
Less code to transfer, migrate, and upload workloads

To start your Docker journey, check out Cloud Academy’s Docker in Depth Learning Path. 
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What are virtual machines?
Virtual machines, on the other hand, are created to perform tasks that, if otherwise performed directly on the host environment, may

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