Master everything you need to know about Docker containers to easily create, deploy, and run your applications with containers.

DevOps for Developers

By now, you've probably heard the buzz around Docker. It's fundamentally changed the development process and been adopted by software teams of all sizes, and for good reason: Docker makes it considerably easier to create, deploy, and run applications with the use of containers.

Docker is here to stay, and is becoming one of the most in-demand technologies on the market. Mastering it now will help you produce better software, level up your career, and stand out from the crowd. Get started today.

Docker for Developers

A Docker Registry is basically an image store that offers the following functions:

* Ability to store various images.

* Ability to store various tags for the same image.

* An HTTP API that allows pushing images from a machine that produces them, or pull images to a machine that runs containers from those images.

* TLS-secured connection to the API in order to avoid man-in-the-middle attacks.

There are many registries available. You can use the publicly available Docker Hub or use a private registry of your own. There are many ways to create private registries, and we'll cover several of them in the [*Private Registries*](https://www.educative.io/courses/docker-for-developers/private-registries) lesson. In any case, the process to tag and publish your images remains the same for every registry.

---

In the next lesson, we will learn how to publish an image.

While we were introduced to registries in a previous lesson, here we will look at them in more detail.