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The image-spec is a software shipping container image format spec (OCI Image Format) that reached version 1.0.0 on July 19, 2017. [12] The OCI Distribution Spec Project defines the distribution-spec, an API protocol to facilitate and standardize the distribution of content.
The main classes of Docker objects are images, containers, and services. [22] A Docker container is a standardized, encapsulated environment that runs applications. [25] A container is managed using the Docker API or CLI. [22] A Docker image is a read-only template used to build containers. Images are used to store and ship applications. [22]
Docker, Inc. is an American technology company that develops productivity tools built around Docker, which automates the deployment of code inside software containers. [1] [2] Major commercial products of the company are Docker Hub, a central repository of containers, and Docker Desktop, a GUI application for Windows and Mac to manage containers.
Docker, Inc. releases Docker, a series of platform as a service (PaaS) products that use OS-level virtualization. 2014. The first public build of Kubernetes is released on September 8, 2014. [7] When Kubernetes debuted, it offered a number of advantages over Docker, the most popular containerization platform at the time.
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In software engineering, containerization is operating-system–level virtualization or application-level virtualization over multiple network resources so that software applications can run in isolated user spaces called containers in any cloud or non-cloud environment, regardless of type or vendor. [1]
LXC relies on the Linux kernel cgroups functionality [8] that was released in version 2.6.24. It also relies on other kinds of namespace isolation functionality, which were developed and integrated into the mainline Linux kernel.
The first stable version, Vagrant 1.0, was released in March 2012, exactly two years after the original version was released. In November 2012, Mitchell formed an organization called HashiCorp to support the full-time development of Vagrant; Vagrant remained permissively licensed free software .