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As software development (both frontend and backend) is moving towards automation, good knowledge and experience about the Docker could be very valuable for your career, especially in 2020.

The latest stats and figures show some amazing numbers like jobs requiring these skill sets pay higher than most of the jobs posted on public job boards within the US and annual salaries for professionals could be as high as $100,000.

That is the exact reason why you should learn Docker in 2020 and take your career to the next level and nothing is better than starting with some free resources.

I have been sharing some free resources, like books and courses, for quite some time and if you are the first time here, you may want to search through the box to find out about free online courses on Java, Spring, Kotlin, DevOps, Eclipse, Jenkins, Rails, PHP, and MySQL, Oracle, Linux, etc.

In this article, I am going to share 10 free Docker courses you can use to learn the Docker and Containerization of both frontend and backend applications.

Btw, if you don't mind paying few bucks for learning something as valuable as Docker then I also suggest you take a look at Docker and Kubernetes: The Complete Guide by Stephen Grider course on Udemy. It's a true gem course and you can get it on the throw-away price of just $10 on Udemy flash sales.

As I said, Docker and containers are a whole new way of developing and delivering applications and the IT infrastructure and here is my list of some of the free courses Frontend developers can use to learn Docker.

10 Free Courses to Learn Docker for Beginners

Here is my list of some of the best, free courses to learn Docker in 2020. They are an excellent resource for both beginners and experienced developers.

1. Docker Essentials

If you have heard all the buzz around Docker and containers and are wondering what they are and how to get started using them, then this course is for you.

In this course, you will learn how to install Docker, configure it for use on your local system, clone and work with Docker images, instantiate containers, mount host volumes, redirect ports and understand how to manage images and containers.

After completing the course you should be able to implement containers in your projects/environment while having a firm understanding of their use cases, both for and against.

In short, one of the best courses for developers and DevOps Engineers who want to learn basics, like what Docker containers are and how to use them in their environment.

2. Understanding Docker and Using it for Selenium Automation

This is another good course to learn and understand the basics of Docker while automating Selenium test cases for your project.

The course is specially designed for DevOps engineers, automation guys, testers, and developers.

The course is divided into three main parts: Introduction of Docker, Docker Compose, and Selenium Grid with Docker.

The three sections are independent of each other and you can learn than in parallel or switch back and forth.

3. Docker for Beginners

This is one of the best courses to learn the big picture of Docker and containerization. If you know a little bit about virtualization, networking, and cloud computing, then you can join this course.

It provides a good introduction to the current software development trend and what problems Docker solves.

In short, this is a good course for Software and IT architects, Programmers, IT administrator and anyone who want to understand the role of Docker in current world application development.

4. Containers 101

Docker and containers are a whole new way of developing and delivering applications and IT infrastructure.

This course will cover Docker and containers, container registries, container orchestration, understand if this will work for the enterprise, and how to prepare yourself for it.

In short, a good course for anyone who wants to get up to speed with containers and Docker.

5. DevOps Essentials

Have you ever wondered what does DevOps means? What benefits it offers and why one should learn DevOps? This course, DevOps Essentials, will teach you everything you need to know about DevOps, "Continuous Integration", "Build Automation", and "Orchestration"? What about tools such as Jenkins, Ansible, and Chef?

This course provides a basic introduction to the DevOps essentials everyone needs to know. Covering all the terms and tools listed above, and much more. We designed the course to give you a working knowledge of what DevOps is and how it impacts I.T. in the real world.

This was a paid course earlier on Udemy, but it's free for a limited time. Join this course before it becomes paid again.

6. Docker for Beginners

Whether or not you're a Developer, anyone who works with code or servers will boost their productivity with Docker's open app-building platform.

In this course, Docker for Beginnerswill help the audience to kick start their learning of Docker containers. The course will introduce different concepts of Docker that include the usage of different concepts, keywords, commands, and best practices.

You will also learn how to work with images and containers, how to get your project running, and how to push it to the cloud, among other important lessons.

7. Docker on Windows 10 and Server 2016

If you are thinking to learn how to use Docker on Windows 10 and Windows Server 2016 then this is the right course for you.

In this course, you will understand what Docker On Windows is all about and how Docker on Windows is the same as Linux Containers.

You will also learn Hyper-V, namespace isolation and server containers in depth.

8. Deploying Containerized Applications Technical Overview

Docker has become the de facto standard for defining and running containers in the Linux operating system. Kubernetes is Red Hat's choice for container orchestration and this course will teach you how to work with Docker in RedHat Linux.

OpenShift, built upon Docker, Kubernetes, and other open-source software projects, provides Platform-as-a-Service (PaaS) for the ultimate in deploying applications within containers.

This is an Official Red Hat course about containers using Docker running on Red Hat Enterprise Linux.

In this course, Jim Rigsbee, a curriculum architect for Red Hat Training, will introduce you to container technology using Docker running on Red Hat Enterprise Linux

9. Docker Deep Dive

As the title suggests this is a very comprehensive course to learn Docker in-depth. It provides a good experience for core Docker technologies, including the Docker Engine, Images, Containers, Registries, Networking, Storage, and more.

You will also learn theory and all concepts are clearly demonstrated on the command line.

And the best part of this course is that no prior knowledge of Docker or Linux is required.

10. Docker and Containers: The Big Picture

In this course, you'll learn how this is going to impact you as an individual as well as the teams and organizations you work for.

This course will cover Docker and containers, container registries, container orchestration, whether this stuff is for the enterprise, and how to prepare yourself for it.

These two courses from Pluralsight are not really free; you need a Pluarlsight membership to get this course, and monthly membership costs around $29 and annual membership costs around $299.

I know, we all love free stuff, but you will not only get access to this course but over 5000 courses as well, so it's definitely the money well spent.

I have an annual membership because I have to learn a lot of new stuff all the time. Even if you are not a member, you can get this course for free by signing their 10-day free trial with no obligation.

That's all about some of the free Docker container courses for frontend developers. It's one of the essential skills if you are developing a mobile application or web application hence, I suggest every application developer learn Docker in 2020. You will not only learn an essential skill but also take your career to the next level, given the high demand for Docker specialist and developer who knows Docker.

Other Free Online Courses You May like to explore
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The 2020 Web Developer RoadMap
5 Free Kubernetes Courses for Programmers

Closing Notes

Thanks for reading this article so far. You might be thinking that there is so much stuff to learn, so many courses to join, but you don't need to worry.

There is a good chance that you may already know most of the stuff, and you just need to brush up some concepts. Even if you don't know, these free courses will help you a lot.

I am a particular fan of Udemy courses, not just because I earn some commission when you buy any non-free course but because they are very affordable and provide a lot of values in a very small amount, but you are free to choose the course you want.

At the end of the day, you should have enough knowledge and experience about the things mentioned here.

Good luck with your DevOps and Docker journey! It's certainly not going to be easy, but by following this roadmap and guide, you are one step closer to becoming the DevOps engineer, you always wanted to be

If you like this article then please consider following me on dev.to. if you'd like to be notified for every new post and don't forget to followjavarevisited on Twitter!

P.S. --- If you don't mind spending a few bucks for something worth learning then Docker and Kubernetes: The Complete Guide by Stephen Grider is another course I recommend. It's not free and I'll also get paid if you a non-free course but this is one of the best I have come across when learning Docker.