Docker Course for Absolute Beginners

Hello and welcome to my new course, Docker for Dummies

In the beginning of internet and server technology, there was the bare metal server. It was a single computer that hosted a single operating system and, on top of that, a single web server application.

The quest for better use of hardware led to another innovation called virtualization. It enabled a single bare metal server computer to host multiple guest operating systems, which work like separate computers. The technology itself was superb, but the resource and memory usage were high.

In want of more refinement and efficient use of resources, recently came the containerization technology, in which a single operating system is divided into multiple containers with very little size, and they share the common kernel of the host operating system itself.

We are going to learn about this technology in our Docker for Dummies course.

The first session is essentially a theory session. We will discuss the basics of docker containerization, monolith, and microservices, the transition that led to containerization, and its future

Later, we will see how we can install Docker on various platforms. At first, Docker Desktop in Windows 10 Pro and later the Docker Toolbox in Windows Home edition

Then we will proceed with the steps to download and install the Docker desktop on Mac computers.

And finally, we will see how we can install the actual Docker, the Docker Community Edition, in Ubuntu Linux. Don't worry if you do not have a Linux computer with you. We will also be covering how we can install VirtualBox and, on top of that, install Ubuntu Linux so that you may use your Windows or Mac computer itself.

Then we will proceed with the basics of docker. The difference between docker images and containers. Searching and pulling an image from the hub and dealing with the downloaded images.

Later, we will run the images we downloaded using the run command and its various options. Containers will be created while we run the images.

Also, we will see a recap of the commands we have already learned and also alternate them with the ones we learned. We will also see how we can get more details about the running docker container, manage it, stop it, and gracefully terminate it if needed. Also, we will discuss the various options and use case scenarios for docker run and docker start commands

We will then deal with how to create a dockerfile. It contains instructions about the customs procedure for creating a Docker container we want so that we don't have to repeat the commands while we deal with the creation of new containers. We will also create a few sample containers using Dockerfile.

Later, we will see yet another important tool called the Docker Compose tool. This is a very handy option in case we want to deal with a multi-container application. A single YAML file will take care of all the containers and their configurations that are required by each and every service in the application.

As a project, we will be creating a sample web application with two microservices. One in Python and one in PHP. We will see how we can sync these together using the docker-compose and get the result.

So overall, this is a perfect course for a beginner who wants to get his feet wet with containerization technology using docker. Almost all technology companies are moving towards containerization from their existing virtualization infrastructure. So learning this will take you far ahead of others in the race to learn the latest technology

We will also be providing you with a course completion certificate so that you can add it later to your portfolio.

Let's go ahead with this short and wonderful course. See you soon in the classroom. Have a great time. Bye