{"id":42704,"date":"2022-04-21T08:00:47","date_gmt":"2022-04-21T06:00:47","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/installing-docker-on-raspberry-pi\/"},"modified":"2022-04-21T06:00:34","modified_gmt":"2022-04-21T04:00:34","slug":"installing-docker-on-raspberry-pi","status":"publish","type":"post","link":"https:\/\/botland.store\/blog\/installing-docker-on-raspberry-pi\/","title":{"rendered":"Installing Docker on Raspberry Pi"},"content":{"rendered":"Reading time:<\/span> 3<\/span> min.<\/span><\/span>

Need is the mother of invention<\/h2>\n

The intensive development of software – both computer and mobile, as well as embedded (firmware) – has made the proper selection of development tools, used in everyday work by both developers and testers and managers, particularly important<\/b>. The level of complexity of tasks faced by people involved in software development is influenced by constant changes occurring both in terms of hardware (new processor architectures, peripheral devices) and software (subsequent editions of operating systems, frameworks, libraries, and even… programming languages).<\/p>\n

\"Programming
Programming software has become remarkably easy to access<\/figcaption><\/figure>\n

All this means that application developers need a method for convenient, fast and, above all, secure testing of their products<\/b> with the possibility of seamless reconfiguration or restoration of the test environment after a failure. Two technologies come to the rescue – virtualisation and containerisation.<\/p>\n

Virtualisation vs. containerisation – which to choose?<\/h2>\n

Everyone is familiar with the concept of a virtual machine – with the help of software such as VirtualBox<\/a> or VMWare you can easily “put” your chosen operating system on a computer that is already running another OS.<\/p>\n

\"Ubuntu
A virtual machine makes it possible to use Ubuntu, for example, on a Windows machine. (Source: https:\/\/www.virtualbox.org\/)<\/figcaption><\/figure>\n

The purpose of a virtual machine is to isolate the guest system<\/b>\u00a0The guest system and the applications running on it are isolated from the host system. Such a solution not only protects the host against potential threats from the inferior system, but also facilitates the work of people who need to use two (or more) operating systems in their activities without the need to constantly shut down the machine and boot another system from the start menu. The software also allows the creation of snapshots, i.e. a record of the virtual machine’s system state, which can be safely and quickly restored, e.g. in the case of a serious error.<\/p>\n

Containerisation, on the other hand, provides a lower level of isolation – each container is in fact a “miniature” working environment with its own libraries and applications, but using the hardware and software resources of the main, superior operating system<\/b>. A great advantage of containerisation is a far-reaching reduction in the demand for computing power and operating memory (as well as disk space) in comparison to virtual machines – and this translates directly into smooth operation and availability of resources for the needs of tested applications.<\/p>\n

\"Contenerisation\"
“Closing” the programme increases the security of the work on the project<\/figcaption><\/figure>\n

Installing Docker on Raspberry Pi<\/h2>\n

In terms of hardware, the Raspberry Pi 4<\/a> minicomputer is an excellent choice for those wishing to start using containerisation. Docker, one of the most popular container environments, works seamlessly with Raspberry Pi<\/b>, and has already been packaged with installation packages. To download the appropriate version of Docker, you need to start the Raspberry Pi terminal and enter a command<\/b> which will automatically download and save a complete installation script to the disk (or, more precisely, a microSD card):<\/p>\n

curl -fsSL https:\/\/get.docker.com -o get-docker.sh<\/code><\/pre>\n
After downloading, run the script using the shell command:<\/p>\n
sh get-docker.sh<\/code><\/pre>\n
All of the configuration, as well as downloading the relevant binary files, will be done automatically, so you don’t have to manually install any missing repositories. Finally, it is a good idea to add the current user to the docker group (usually this will just be the default account named pi), created during the software installation:<\/p>\n
sudo usermod -aG docker $USER<\/code><\/pre>\n
This will enable you to run Docker without having to log in as root, which will make everyday work with this environment much easier.<\/p>\n
Creating and using Docker containers<\/h2>\n
On the Raspberry Pi<\/a>, Docker works in exactly the same way as it does on other computers – you need to start by downloading a suitable container image<\/b>, which is a ready-made set of libraries, system files and system tools based on one of the well-known operating systems, such as Debian, Ubuntu or Fedora. For example, to run an Ubuntu image, run the command:<\/p>\n
docker container run -it ubuntu \/bin\/bash<\/code><\/pre>\n
This command – in addition to running (and before that, if necessary, automatically downloading) a popular Linux image – will also perform the operation written after the image name. In this case, the Linux command line will be run, allowing you to start working “inside” the container as if it were a regular computer running Ubuntu.<\/p>\n","protected":false},"excerpt":{"rendered":"
Docker is a great tool for software developers and testers – find out how to run it on your Raspberry Pi!<\/p>\n","protected":false},"author":20,"featured_media":42705,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[343,341],"tags":[442,441],"class_list":["post-42704","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-raspberry-pi-en","category-tips","tag-minicomputers","tag-programming"],"acf":[],"yoast_head":"\nInstalling Docker on Raspberry Pi - Botland<\/title>\n<meta name=\"description\" content=\"Find out how to install and run a Docker environment on a Raspberry Pi and what you can use containerisation for - read more on the Botland blog!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/botland.store\/blog\/installing-docker-on-raspberry-pi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Installing Docker on Raspberry Pi - 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