In this tutorial, we will show you how to install Docker on Debian 9 Stretch server. For those of you who didn’t know, Docker is an open-source project that automates the deployment of the 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 a Go Programming language and is developed by Dot cloud. It is basically a container engine that 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 latest version on a Debian 9 (Stretch) server.
Install Docker on Debian 9 Stretch
Step 1. Before we install any software, it’s important to make sure your system is up to date by running these following apt-get commands in the terminal:
Step 2. Installing Docker on Debian 9 server.
First, install some additional packages prior to Docker installation:
Add the GPG key for Docker repository on your system:
Next, add docker repository to your Debian Stretch machine with the command:
echo"deb [arch=amd64] https://download.docker.com/linux/debian $(lsb_release -cs) stable"|sudotee-a/etc/apt/sources.list.d/docker.list
Update the apt database and install Docker:
Once that is done, start and enable docker to run on bootup:
Verify Docker installation:
### docker --version
Step 3. Deploying your First Docker Image, “Hello World!”.
To be sure that we successfully installed Docker, we can start the all-time classic “hello-world” image:
If you see this message, then it’s working correctly:
Congratulations! You have successfully installed Docker. Thanks for using this tutorial for installing Docker on Debian 9 Stretch server. For additional help or useful information, we recommend you to check the official Docker website.