{"id":6471,"date":"2021-08-05T12:03:52","date_gmt":"2021-08-05T12:03:52","guid":{"rendered":"https:\/\/www.how2shout.com\/linux\/?p=6471"},"modified":"2021-08-05T15:57:55","modified_gmt":"2021-08-05T15:57:55","slug":"best-way-to-install-docker-on-ubuntu-20-04-linux","status":"publish","type":"post","link":"https:\/\/linux.how2shout.com\/best-way-to-install-docker-on-ubuntu-20-04-linux\/","title":{"rendered":"Best way to install Docker on Ubuntu 20.04 Linux"},"content":{"rendered":"<p>Docker doesn&#8217;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. <em>Here we will learn the best way to install Docker on\u00a0 Ubuntu Hirsute 21.04, Ubuntu Groovy 20.10, Ubuntu Focal 20.04 (LTS), and Ubuntu Bionic 18.04 (LTS).<\/em><\/p>\n<p>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&#8217;s resources to the individual containers and ensures their isolation on the host system is called Docker Engine.<\/p>\n<p><strong>Few key advantages of using Docker container machines:<\/strong><\/p>\n<ul>\n<li>Free to use Software<\/li>\n<li>It requires fewer resources than virtual machines<\/li>\n<li>Scalability<\/li>\n<li>Provides Security and isolates the applications from one another and from the host system<\/li>\n<li>Lightweight<\/li>\n<li>Simple management of many containers via orchestration tools such as Kubernetes<\/li>\n<li>The availability of containers in the image file makes it easily transferrable to other systems.<\/li>\n<li>Easy to install and Quickstart<\/li>\n<\/ul>\n<h2>Best method to install Docker on Ubuntu 20.04 Linux<\/h2>\n<p>There are three ways to install Docker on Ubuntu Linux but th<strong>e best one is by using its official repository<\/strong>. Whereas the two others are\u00a0 <strong>SNAP<\/strong> and the base <strong>repo<\/strong>.<\/p>\n<p>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&#8217;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.<strong> Hence, go for the tutorial given below:<\/strong><\/p>\n<p>&nbsp;<\/p>\n<h3>1. Add few common packages<\/h3>\n<p>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.<\/p>\n<pre>sudo apt install apt-transport-https curl lsb-release<\/pre>\n<p>&nbsp;<\/p>\n<h3>2. Add Docker&#8217;s GPG Key<\/h3>\n<p>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.<\/p>\n<pre>curl -fsSL https:\/\/download.docker.com\/linux\/ubuntu\/gpg | sudo gpg --dearmor -o \/usr\/share\/keyrings\/docker-archive-keyring.gpg<\/pre>\n<p>&nbsp;<\/p>\n<h3>3. Best way- Add Stable Docker repository on Ubuntu 20.04 or others<\/h3>\n<p>Now, on your Ubuntu, paste the following block of command and hit <strong>Enter<\/strong> key. It will automatically detect your Ubuntu version to add the corresponding available repository.<\/p>\n<pre>echo \\\r\n\"deb [arch=amd64 signed-by=\/usr\/share\/keyrings\/docker-archive-keyring.gpg] https:\/\/download.docker.com\/linux\/ubuntu \\\r\n$(lsb_release -cs) stable\" | sudo tee \/etc\/apt\/sources.list.d\/docker.list &gt; \/dev\/null<\/pre>\n<p>&nbsp;<\/p>\n<h3>4. Run system update<\/h3>\n<p>To let the system know that we have recently added a new repository, run a system update command to rebuild the system repo cache.<\/p>\n<pre>sudo apt update<\/pre>\n<p>&nbsp;<\/p>\n<h3>5. Install Docker Engine on Ubuntu<\/h3>\n<p>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.<\/p>\n<pre>sudo apt install docker-ce docker-ce-cli containerd.io<\/pre>\n<p>&nbsp;<\/p>\n<h3>6. Test your installation<\/h3>\n<p>To know everything has been installed correctly to work with containers, let&#8217;s create a simple container image called hello-world.<\/p>\n<pre>sudo docker run hello-world<\/pre>\n<p><a href=\"https:\/\/www.how2shout.com\/linux\/wp-content\/uploads\/2021\/08\/Test-Docker-installation-on-Ubuntu.png\"><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6479\" title=\"Test Docker installation on Ubuntu\" src=\"https:\/\/www.how2shout.com\/linux\/wp-content\/uploads\/2021\/08\/Test-Docker-installation-on-Ubuntu.png\" alt=\"Test Docker installation on Ubuntu\" width=\"731\" height=\"531\" \/><\/a><\/p>\n<h3>7. Add your User to the Docker group<\/h3>\n<p>By default, to create any Container or to run the Docker command you have to use <strong>sudo<\/strong> with it. To remove this, we need to add our current to its group.<\/p>\n<pre>sudo gpasswd -a $USER docker<\/pre>\n<p><strong>Reload group<\/strong><\/p>\n<pre>newgrp docker<\/pre>\n<p>That&#8217;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.<\/p>\n<p>If you are not comfortable with the command line then try out the Docker GUI, here is the article on it:\u00a0<a title=\"How to install Portainer Docker Web GUI for Linux, Windows &amp; macOS\" href=\"https:\/\/www.how2shout.com\/linux\/how-to-install-portainer-docker-web-gui\/\" target=\"_blank\" rel=\"noopener\">Install Portainer Docker Web GUI<\/a> or\u00a0 <a title=\"How to install Kitematic on Ubuntu 20.04 LTS Linux\" href=\"https:\/\/www.how2shout.com\/how-to\/how-to-install-kitematic-on-ubuntu-20-04.html\" target=\"_blank\" rel=\"noopener\">How to install Kitematic on Ubuntu 20.04 LTS&#8230;<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Docker doesn&#8217;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\u00a0 Ubuntu Hirsute 21.04, Ubuntu Groovy 20.10, Ubuntu Focal 20.04 (LTS), and Ubuntu Bionic 18.04 (LTS). Being a containerized [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":6480,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","_mbp_gutenberg_autopost":false,"footnotes":""},"categories":[3],"tags":[532,3119,29,1261,30,3065],"class_list":{"0":"post-6471","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-ubuntu","8":"tag-docker","9":"tag-docker-gui","10":"tag-ubuntu","11":"tag-ubuntu-18-04","12":"tag-ubuntu-20-04","13":"tag-ubuntu-21-04"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.9 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Best way to install Docker on Ubuntu 20.04 Linux - LinuxShout<\/title>\n<meta name=\"description\" content=\"Learn the best way to install Docker engine CE on\u00a0Ubuntu Hirsute 21.04, Groovy 20.10, Ubuntu Focal 20.04 (LTS), and Bionic 18.04 (LTS).\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/linux.how2shout.com\/best-way-to-install-docker-on-ubuntu-20-04-linux\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Best way to install Docker on Ubuntu 20.04 Linux\" \/>\n<meta property=\"og:description\" content=\"Learn the best way to install Docker engine CE on\u00a0Ubuntu Hirsute 21.04, Groovy 20.10, Ubuntu Focal 20.04 (LTS), and Bionic 18.04 (LTS).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/linux.how2shout.com\/best-way-to-install-docker-on-ubuntu-20-04-linux\/\" \/>\n<meta property=\"og:site_name\" content=\"LinuxShout\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/how2shout\" \/>\n<meta property=\"article:published_time\" content=\"2021-08-05T12:03:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-08-05T15:57:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/linux.how2shout.com\/wp-content\/uploads\/2021\/08\/Best-way-to-install-Docker-on-Ubuntu-20.04-Linux.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"861\" \/>\n\t<meta property=\"og:image:height\" content=\"476\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Heyan Maurya\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@h2smedia\" \/>\n<meta name=\"twitter:site\" content=\"@h2smedia\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Heyan Maurya\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/linux.how2shout.com\\\/best-way-to-install-docker-on-ubuntu-20-04-linux\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/linux.how2shout.com\\\/best-way-to-install-docker-on-ubuntu-20-04-linux\\\/\"},\"author\":{\"name\":\"Heyan Maurya\",\"@id\":\"https:\\\/\\\/linux.how2shout.com\\\/#\\\/schema\\\/person\\\/102d73e20384ea409022d5bafddc0f72\"},\"headline\":\"Best way to install Docker on Ubuntu 20.04 Linux\",\"datePublished\":\"2021-08-05T12:03:52+00:00\",\"dateModified\":\"2021-08-05T15:57:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/linux.how2shout.com\\\/best-way-to-install-docker-on-ubuntu-20-04-linux\\\/\"},\"wordCount\":663,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/linux.how2shout.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/linux.how2shout.com\\\/best-way-to-install-docker-on-ubuntu-20-04-linux\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/linux.how2shout.com\\\/wp-content\\\/uploads\\\/2021\\\/08\\\/Best-way-to-install-Docker-on-Ubuntu-20.04-Linux.jpg\",\"keywords\":[\"docker\",\"docker GUI\",\"ubuntu\",\"ubuntu 18.04\",\"ubuntu 20.04\",\"Ubuntu 21.04\"],\"articleSection\":[\"Ubuntu\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/linux.how2shout.com\\\/best-way-to-install-docker-on-ubuntu-20-04-linux\\\/#respond\"]}],\"copyrightYear\":\"2021\",\"copyrightHolder\":{\"@id\":\"https:\\\/\\\/linux.how2shout.com\\\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/linux.how2shout.com\\\/best-way-to-install-docker-on-ubuntu-20-04-linux\\\/\",\"url\":\"https:\\\/\\\/linux.how2shout.com\\\/best-way-to-install-docker-on-ubuntu-20-04-linux\\\/\",\"name\":\"Best way to install Docker on Ubuntu 20.04 Linux - 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