What is Docker ?

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Docker is a container management tool. Docker is used for developing and Deploying distributed applications that can run in different environments without any compatible issues, It could save cost, save time. or software platform that allows you to build, test and deploy applications quickly.

A well-liked open-source platform for creating, distributing, and executing applications is called Docker. Regardless of the hardware configuration or operating system, it leverages containerisation technology to build lightweight, portable containers that can run programmes on any computer that has the Docker platform installed.

An application and its dependencies can be bundled together into a single, readily deployable and manageable bundle using containers. Developers can create, test, and launch apps quickly and effectively with Docker, all without having to worry about complicated deployment procedures or incompatibilities.

To manage containers, images, networks, and other resources, Docker offers both a web-based graphical user interface and a command-line interface. Additionally, it enables technologies for automation and orchestration, such as Kubernetes and Docker Compose, to help manage complicated deployments and scale apps.

What is tool

A “tool” in the context of Docker is typically a Programme or utility that works with Docker to carry out several operations pertaining to container development, deployment, and management.

What is Container ?

An executable package that is small and portable that holds all the software and dependencies required to run an application is called a container. By separating an application and its dependencies from the host system and other apps, containers make it possible for applications to operate reliably and consistently in a variety of settings.

Virtual machines and containers are comparable, but containers are far lighter and more effective. Containers share the same host operating system and only need the resources necessary to run the application, in contrast to virtual machines, which need a different operating system and hardware resources for each instance.

This isolation and portability are made possible by containers through a technology known as containerisation. Containerisation creates a distinct, isolated environment for each container by utilising operating system kernel-level characteristics. This makes it possible for containers to operate on any system, independent of the underlying hardware or operating system, as long as the required containerisation technology is implemented.

Developers can package their apps and dependencies into a single, readily deployable, and manageable container by using containers, which are widely used for application deployment. They are also employed in other software development and deployment processes, such as testing and continuous integration and delivery.

What is management ?

The process of managing containers and the resources they are connected to is referred to as “management” in Docker. This covers actions like building, launching, pausing, and removing containers in addition to keeping an eye on their efficiency and resource utilisation.

Docker offers a number of features and tools to assist with container management, such as

Docker CLI: The Docker command-line interface (CLI) allows you to manage containers using commands such as docker run, docker start, docker stop, and docker rm.

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