A few quick notes about Docker: docker-installation-on-ubuntu-article

Multiple containers run on the same hardware
Maintains isolated applications
Enables high productivity
Quick and easy to configure
Before learning about this technology, the first step is to install it. In this article, you’ll learn how to install Docker on Ubuntu.

Steps for Installing Docker:
1. Open the terminal on Ubuntu.

2. Remove any Docker files that are running in the system, using the following command
After entering the above command, you will need to enter the password of the root and press enter.

3. Check if the system is up-to-date using the following command:

4. Install Docker using the following command:
You’ll then get a prompt asking you to choose between y/n - choose y

5. Install all the dependency packages using the following command:

6. Before testing Docker, check the version installed using the following command:

7. Pull an image from the Docker hub using the following command:
Here, hello-world is the docker image present on the Docker hub.

8. Check if the docker image has been pulled and is present in your system using the following command:

9. To display all the containers pulled, use the following command:

10. To check for containers in a running state, use the following command:

You’ve just successfully installed Docker on Ubuntu!