Introduction to Docker

Category : Docker | Sub Category : Docker for Java Developers | By Runner Dev Last updated: 2022-02-06 19:44:23 Viewed : 85


Introduction to Docker

This chapter introduces the basic concepts and terminology of Docker. You`ll also learn about different scheduler frameworks.

The main benefit of the Java programming language is Write Once Run Anywhere, or WORA, as shown in Figure . This allows Java source code to be compiled to byte code and run on any operating system where a Java virtual machine is


Java provides a common API, runtime, and tooling that works  across multiple hosts.

Your Java application typically requires an infrastructure such as a specific version of operating system, an application server, JDK, and a database server. It may need binding to specific ports and requires a certain amount of memory

Typically, building, deploying, and running an application requires a script that will download, install, and configure these dependencies. Docker simplifies this process by allowing you to create an image that contains your application and infrastructure together, managed as one component. These images are then used to create Docker containers that run on the container virtualization platform, which is provided by Docker.

Docker simplifies software delivery by making it easy to build, ship, and run distributed applications. It provides a  common  runtime  API, image format, and toolset for building, shipping, and running containers on Linux. At the time of writing, there is no native sup‐ port for Docker on Windows and OS X.

This allows a Docker image to be created once and deployed on a variety of operating sys‐ tems where Docker virtualization is available

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