How To Install Docker on Ubuntu 16.04 LTS

Install Docker on Ubuntu 16.04 LTS

In this tutorial we will show you how to install and configuration Docker on Ubuntu 16.04. For those of you who didn’t know, Docker is an open-source project that automates the deployment of application inside the software container. The container allows the developer to package up all project resources such as libraries, dependencies, assets etc. Docker is written in Go Programming language and is developed by Dotcloud. It is basically a container engine which uses the Linux Kernel features like namespaces and control groups to create containers on top of an operating system and automates the application deployment on the container.

This article assumes you have at least basic knowledge of linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation Docker on a Ubuntu 16.04 (Xenial Xerus) server.

Install Docker on Ubuntu 16.04 LTS

Step 1. First make sure that all your system packages are up-to-date by running these following apt-get commands in the terminal.

sudo apt-get update
sudo apt-get upgrade

Step 2. Installing Docker.

Now install docker with the apt command:

apt-get install linux-image-generic-lts-trusty
apt-get install -y docker.io

Wait until the installation has been completed, start and enable Docker service:

systemctl start docker
systemctl enable docker

Verify docker version:

docker version

Step 3. Download Docker Container.

Let’s begin using Docker, Download the ubuntu Docker image:

docker pull ubuntu

Install Docker on Ubuntu 16.04 LTS

Verify downloaded Ubuntu  container:

docker images

Install Docker on Ubuntu 16.04 LTS

To enter to that Ubuntu container give following command and you will be automatically in, -i  option will make it interactive and -t will assign tty to container:

docker run -i -t ubuntu

Alternatively, you may want to launch a specific version of Ubuntu: a container can contain multiple images. This command shows the available images that you have downloaded so far:

sudo docker.io images
REPOSITORY          TAG                 IMAGE ID
ubuntu              vivid               76ca2fd90787
ubuntu              15.04               76ca2fd90787
ubuntu              utopic              cfaba6b5fefe
ubuntu              14.10               cfaba6b5fefe
ubuntu              14.04               5ba9dab47459
ubuntu              trusty              5ba9dab47459
ubuntu              14.04.1             5ba9dab47459
ubuntu              latest              5ba9dab47459
ubuntu              12.04.5             69c02692b0c1

Now if you want to launch another version, you can simply preprend the TAG of the version you want to launch to the container in this way:

sudo docker.io run -i -t ubuntu:14.10 /bin/bash

Congratulation’s! You have successfully installed Docker. Thanks for using this tutorial for installing Docker on Ubuntu 16.04 LTS  (Xenial Xerus) system. For additional help or useful information, we recommend you to check the official Docker website.

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