What is a software wrapper11/12/2022 Where containers marked a defined shift from the VM era was by isolating execution environments while sharing the underlying OS kernel, providing a lightweight and speedy option for developers. In the virtual machine (VM) world, this could be done by keeping applications separate while running on the same hardware, but in that world each VM requires its own operating system, meaning they are typically large, slow to start up, difficult to move around, and cumbersome to maintain and upgrade. What is a software wrapper portable#Docker let developers deploy, replicate, move, and back up a workload in one streamlined way, using a set of reusable images to make workloads more portable and flexible than previous methods allowed. What are containers?Īs Hykes described it in his P圜on talk, containers are “self-contained units of software you can deliver from a server over there to a server over there, from your laptop to EC2 to a bare-metal giant server, and it will run in the same way because it is isolated at the process level and has its own file system.”īy simplifying this process, Docker quickly became close to a de facto industry standard for containers. Now you can do Linux containers with us and go do whatever you want, go build your platform.’ So that’s what we are doing.”Īnd so Docker was born, with the open source project quickly picking up traction with developers and attracting the attention of high-profile technology providers like Microsoft, IBM, and Red Hat, as well as venture capitalists willing to pump millions of dollars into the innovative startup. “We did always think it would be cool to be able to say, ‘Yes, here is our low-level piece. Hykes first demoed Docker at P圜on in March 2013, where he explained that Docker was created because developers kept asking for the underlying technology powering the DotCloud platform. While containers have been used in Linux and Unix systems for some time, Docker, an open source project launched in 2013, helped popularize the technology by making it easier than ever for developers to package their software to “build once and run anywhere.” A brief history of Dockerįounded as DotCloud in 2008 by Solomon Hykes in Paris, what we now know as Docker started out as a platform as a service (PaaS) before pivoting in 2013 to focus on democratizing the underlying software containers its platform was running on. Docker is a software platform for building applications based on containers-small and lightweight execution environments that make shared use of the operating system kernel but otherwise run in isolation from one another.
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