What is docker?
Docker is an open source programming stage to make, deploy, and oversee virtualized application containers on a typical working environment (OS). Docker Inc., the organization that initially developed Docker, underpins a business version and is the chief supporter of the open source systems.
Docker is a device that bundles, arranges, and runs containers independent of the OS. Containers innovation is accessible through the working framework: A docker container bundles the application administration with the greater support of the libraries, documents, dependencies and other essentials. Every Container shares the administrations of one underlying working framework.
Docker was made for Linux, however, it has extended support for non-Linux working frameworks, including Microsoft Windows and Apple OS X. Dockers are available for Amazon Web Services (AWS) and Microsoft Azure are as well.
Docker Features
Docker consists of major components. Docker Community Edition is open source, while Docker Enterprise Edition is a form offered by Docker Inc. Endeavor Edition adaptations include Basic, Standard, and Advanced.
Docker engine is the main tool which serves as a bridge where an application can run without thinking about the underlying environments. A .NET project can run on a Linux platform as docker container will provide all the necessary files and dependencies to a .net application over Linux. Application configures container using dockerfile. Dockerfile defines the component which a Docker container will hold.
Docker pros and cons
Docker has provided a de facto standard platform that enables clients to rapidly form, make, deploy, scale and manage containers crosswise over Docker container. Docker permits a high degree of portability with the goal that clients can register and share containers over different has in private and public environment. Docker benefits include proficient application development, bring down resource utilize and quicker deployment in contrast to virtual machines (VMs).
There are few difficulties working with Docker. Handling and maintaining a number of Docker containers in a big organization is difficult and challenging. Security can be an issue, despite-of excellent logical separation, containers share the host's working framework. Any attack on the underlying operating system and ruin all the dockers running on top of that operating system. Many organization prefer to run Dockers on virtual machines and VMs are not necessarily required for dockers to run.