11/23/2021»»Tuesday

Ubuntu Server Install Docker

  1. Ubuntu Server Install Docker Mac
  2. Ubuntu Server Install Docker 18.04
  3. Ubuntu Server Install Docker
  4. Ubuntu Server Install Gnome
  5. Ubuntu Server 20.10 Install Docker

In the Docker Desktop settings: Under General, activate WSL2 based engine and under Resources › WSL Integration activate WSL2 support for your Ubuntu installation. It may be necessary to restart both Docker Desktop and Ubuntu (or even reboot Windows) to get the integration into a working state. Let’s move on to installing the Docker engine on your system. There are three methods to install the Docker engine on Ubuntu: Using the Docker repository (recommended) Manually installing the Docker package; Using the automated convenience scripts. In this tutorial, we will use the recommended method of installation using the Docker repository.

Docker doesn’t need any introduction now, it is a popular and free-to-use container solution that has established itself very well in the field of container-based applications. Here we will learn the best way to install Docker on Ubuntu Hirsute 21.04, Ubuntu Groovy 20.10, Ubuntu Focal 20.04 (LTS), and Ubuntu Bionic 18.04 (LTS).

Being a containerized software solution, Docker offers all functions needed to virtualize applications and operate the containers in an isolated environment from one another, on a host system. A container contains all the resources required to run an application, including the application code, the runtime environment, the system libraries, and the system tools. The system which manages the computer’s resources to the individual containers and ensures their isolation on the host system is called Docker Engine.

Few key advantages of using Docker container machines:

  • Free to use Software
  • It requires fewer resources than virtual machines
  • Scalability
  • Provides Security and isolates the applications from one another and from the host system
  • Lightweight
  • Simple management of many containers via orchestration tools such as Kubernetes
  • The availability of containers in the image file makes it easily transferrable to other systems.
  • Easy to install and Quickstart

Contents

Ubuntu
  • Best method to install Docker on Ubuntu 20.04 Linux

Best method to install Docker on Ubuntu 20.04 Linux

There are three ways to install Docker on Ubuntu Linux but the best one is by using its official repository. Whereas the two others are SNAP and the base repo.

Hence, here we will show the steps to set up Docker on Ubuntu by adding its official repository which is the best possible way to get the latest stable version. Of course, we can get it via SNAP but due confinement model of Snap you may get issues in connecting to the Docker daemon. Or the system would not be able to recognize the docker daemon running on the host. On the other side, the Docker installation from Ubuntu’s base repo will be an extremely stable one, no doubt, but with no guarantee, you will get the latest one with all new features. Hence, go for the tutorial given below:

1. Add few common packages

There are few packages we require during the setup of Docker on Ubuntu such as adding its repo over HTTPS need package that supports it, curl, and lsb-release to know the version of Linux.

2. Add Docker’s GPG Key

Ubuntu Server Install Docker Mac

Before adding the repository of Docker, we have to add the GPG key that will ensure the packages we will get to install Docker, are from the authentic source without any kind of alteration.

3. Best way- Add Stable Docker repository on Ubuntu 20.04 or others

Now, on your Ubuntu, paste the following block of command and hit Enter key. It will automatically detect your Ubuntu version to add the corresponding available repository.

4. Run system update

To let the system know that we have recently added a new repository, run a system update command to rebuild the system repo cache.

5. Install Docker Engine on Ubuntu

Finally, run a single command that will install and set up the Docker community version with other required tools on your Ubuntu 20.04 Linux or the one you are using.

6. Test your installation

Ubuntu Server Install Docker 18.04

To know everything has been installed correctly to work with containers, let’s create a simple container image called hello-world.

7. Add your User to the Docker group

By default, to create any Container or to run the Docker command you have to use sudo with it. To remove this, we need to add our current to its group.

Ubuntu Server Install Docker

Reload group

Ubuntu Server Install Gnome

That’s it, now the latest version of Docker is on your respective Ubuntu version. From here you can start exploring and creating containers by pulling from DockerHub or creating your own image.

Ubuntu Server 20.10 Install Docker

If you are not comfortable with the command line then try out the Docker GUI, here is the article on it: Install Portainer Docker Web GUI or How to install Kitematic on Ubuntu 20.04 LTS…

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