Docker in 60 seconds | What is Docker programming language
Docker is a tool designed to make it easier to create, deploy, and run applications by using containers. Containers allow a developer to package up an application with all of the parts it needs, such as libraries and other dependencies, and ship it all out as one package.
If you are a programmer or in devops you may spend a lot of time preparing development or production environments. Maybe you use hypervisors like VirtualBox or VMware to run full virtual machines (VMs), complete with guest operating system, on your laptop or to quickly deploy servers. As may of you have realized storing and running these VMs takes up a lot of resources. Docker helps with this.
Your software is packaged into what's called an 'Image' which can automatically set up the environment for your codebase within a container on any machine.
Docker container is an open source software development platform. Its main benefit is to package applications in “containers,” allowing them to be portable among any system running the Linux operating system (OS).
Docker Hub is a cloud-based registry service which allows you to link to code repositories, build your images and test them, stores manually pushed images, and links to Docker Cloud so you can deploy images to your hosts.
This makes it super easy to scale infrastructure, replicate environments, and it even solves the "It works on my machine" headache that we all know and love. So now let's learn about. Docker allows developers to package software into containers to run it in any enviroment by virtualizing the operating system as opposed to the hardware.