{"id":3739,"date":"2022-01-25T20:33:02","date_gmt":"2022-01-25T15:03:02","guid":{"rendered":"https:\/\/www.itsupportwale.com\/blog\/?p=3739"},"modified":"2022-02-25T15:52:43","modified_gmt":"2022-02-25T10:22:43","slug":"how-to-install-docker-on-ubuntu-20-04","status":"publish","type":"post","link":"https:\/\/itsupportwale.com\/blog\/how-to-install-docker-on-ubuntu-20-04\/","title":{"rendered":"How to Install Docker on Ubuntu 20.04 LTS"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69d810a53c99b\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69d810a53c99b\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/itsupportwale.com\/blog\/how-to-install-docker-on-ubuntu-20-04\/#Introduction\" >Introduction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/itsupportwale.com\/blog\/how-to-install-docker-on-ubuntu-20-04\/#Prerequisites\" >Prerequisites<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/itsupportwale.com\/blog\/how-to-install-docker-on-ubuntu-20-04\/#Uninstall_older_versions\" >Uninstall older versions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/itsupportwale.com\/blog\/how-to-install-docker-on-ubuntu-20-04\/#Installation_methods_for_Docker_on_Ubuntu_2004_LTS\" >Installation methods for Docker on Ubuntu 20.04 LTS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/itsupportwale.com\/blog\/how-to-install-docker-on-ubuntu-20-04\/#Step_1_Set_up_the_Official_Docker_Repository\" >Step 1: Set up the Official Docker Repository<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/itsupportwale.com\/blog\/how-to-install-docker-on-ubuntu-20-04\/#Step_2_Install_Docker_on_Ubuntu_2004\" >Step 2: Install Docker on Ubuntu 20.04<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/itsupportwale.com\/blog\/how-to-install-docker-on-ubuntu-20-04\/#Step_3_Run_Docker_as_a_non-root_user\" >Step 3: Run Docker as a non-root user<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/itsupportwale.com\/blog\/how-to-install-docker-on-ubuntu-20-04\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>Introduction<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/www.docker.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Docker<\/a> is a very popular open-source containerization platform that allows creating containers of applications and then deploying them. Docker containers are very similar to virtual machines, but they are dependent on the kernel of the host operating system. Whereas Virtual Machines are having their own kernel.<\/p>\n\n\n\n<p>Docker containers are portable and can run on any operating system if the docker engine is installed on it.<\/p>\n\n\n\n<p>In this tutorial, We will <strong>install the Latest Version of Docker Community Edition (CE) on Ubuntu 20.04 LTS Focal Fossa<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Prerequisites\"><\/span>Prerequisites<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In order to follow this tutorial, you will need the following things:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Ubuntu 20.04 LTS Focal Fossa Installed<\/li><li>A sudo non-root user<\/li><li>A <a href=\"https:\/\/hub.docker.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Docker Hub<\/a> account if you want to create your own repository for custom docker images<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Uninstall_older_versions\"><\/span>Uninstall older versions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>If you already have an older version of Docker then you need to uninstall it in order to install the latest version. Uninstall the old versions using the below command:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo apt-get remove docker docker-engine docker.io containerd runc<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Installation_methods_for_Docker_on_Ubuntu_2004_LTS\"><\/span>Installation methods for Docker on Ubuntu 20.04 LTS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>There are several methods available to Install Docker on Ubuntu 20.04.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Installing Docker from Ubuntu&#8217;s Default Repository<\/li><li>Install Docker from Official Docker Repository<\/li><li><a href=\"https:\/\/download.docker.com\/linux\/ubuntu\/dists\/\" target=\"_blank\" rel=\"noreferrer noopener\">Installing Docker from Official DEB package<\/a><\/li><\/ul>\n\n\n\n<p>You will get the same functionality of docker from all the above methods however the best practice is to install the Docker from its Official Repository. Because the Ubuntu Official repository may not have the latest version of docker.<\/p>\n\n\n\n<p>This tutorial will install Docker from its official repository for the Ubuntu 20.04 Distro.<\/p>\n\n\n\n<p><strong>Follow the below steps to install Docker on Ubuntu 20.04<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_1_Set_up_the_Official_Docker_Repository\"><\/span>Step 1: Set up the Official Docker Repository<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>At the very first step we will update our existing package list by using the below command:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo apt update<\/code><\/pre>\n\n\n\n<p>Now, we will install some packages to allow apt to use HTTPS repository:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo apt install apt-transport-https ca-certificates curl software-properties-common<\/code><\/pre>\n\n\n\n<p>Then add the Docker official repository GPG Key to our system:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>curl -fsSL https:\/\/download.docker.com\/linux\/ubuntu\/gpg | sudo apt-key add -<\/code><\/pre>\n\n\n\n<p>After that, set up the stable Docker Official repository for ubuntu 20.04 focal fossa to APT Source by using this command:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo add-apt-repository \"deb &#91;arch=amd64] https:\/\/download.docker.com\/linux\/ubuntu $(lsb_release -cs) stable\"<\/code><\/pre>\n\n\n\n<p>Now we are ready to <strong>install Docker on Ubuntu 20.04<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_2_Install_Docker_on_Ubuntu_2004\"><\/span>Step 2: Install Docker on Ubuntu 20.04<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>First, we have to update our package list because we added Docker repository:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo apt update<\/code><\/pre>\n\n\n\n<p>Finally, Install the Docker by using this command:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo apt-get install docker-ce docker-ce-cli containerd.io<\/code><\/pre>\n\n\n\n<p>After this, Run the below command to verify that to Docker daemon is running:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo systemctl status docker<\/code><\/pre>\n\n\n\n<p>You will see the below output like this but the version of the Docker may differ.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Output:\n\n\u25cf docker.service - Docker Application Container Engine\n     Loaded: loaded (\/lib\/systemd\/system\/docker.service; enabled; vendor preset: enabled)\n     Active: active (running) since Tue 2022-01-25 13:00:34 IST; 1h 33min ago\nTriggeredBy: \u25cf docker.socket\n       Docs: https:\/\/docs.docker.com\n   Main PID: 1487 (dockerd)\n      Tasks: 43\n     Memory: 86.5M\n     CGroup: \/system.slice\/docker.service\n             \u251c\u25001487 \/usr\/bin\/dockerd -H fd:\/\/ --containerd=\/run\/containerd\/containerd.sock\n             \u251c\u25002182 \/usr\/bin\/docker-proxy -proto tcp -host-ip 0.0.0.0 -host-port 8080 -container-ip 172.23.0.2 -container-port 80\n             \u2514\u25002191 \/usr\/bin\/docker-proxy -proto tcp -host-ip :: -host-port 8080 -container-ip 172.23.0.2 -container-port 80<\/pre>\n\n\n\n<p>You can check the docker version by running the below command:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo docker -v<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">Output:\n\nDocker version 20.10.12, build e91ed57<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_3_Run_Docker_as_a_non-root_user\"><\/span>Step 3: Run Docker as a non-root user<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>By default, The <code>docker<\/code> command can be run by only the root user or by a user who is in the docker group. Docker group is automatically created during the installation of docker.<\/p>\n\n\n\n<p>In order to run the <code>docker<\/code> command with non-root users or without <code>sudo<\/code> you need to add the existing user to the docker group.<\/p>\n\n\n\n<p>Add your existing user to the docker group by using the below command:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo usermod -aG docker $USER<\/code><\/pre>\n\n\n\n<p>The user is added to the docker group, run this command when login with the desired user profile to verify:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>groups<\/code><\/pre>\n\n\n\n<p>You will get the below-like output and can see the docker group in the output.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Output:\n\nvoid adm cdrom sudo dip plugdev lpadmin lxd sambashare docker<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In this tutorial, we install the latest version of Docker on Ubuntu 20.04 LTS Focal Fossa. Please post your suggestions if something is missing in this post.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Also Read: <a href=\"https:\/\/oracle.itsupportwale.com\/blog\/install-node-on-ubuntu\/\">How to Install Node on Ubuntu 18.04 or 20.04<\/a><\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Introduction Docker is a very popular open-source containerization platform that allows creating containers of applications and then deploying them. Docker containers are very similar to virtual machines, but they are dependent on the kernel of the host operating system. Whereas Virtual Machines are having their own kernel. Docker containers are portable and can run on &#8230; <a title=\"How to Install Docker on Ubuntu 20.04 LTS\" class=\"read-more\" href=\"https:\/\/itsupportwale.com\/blog\/how-to-install-docker-on-ubuntu-20-04\/\" aria-label=\"Read more  on How to Install Docker on Ubuntu 20.04 LTS\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":3770,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[609,607,608,500,504,7],"tags":[619,615,613,612,611,620,614,625,624,621,623,610,618,616,617,622,568,574],"class_list":["post-3739","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-containerization","category-devops","category-docker","category-linux","category-tutorial","category-ubuntu","tag-docker","tag-docker-on-ubuntu","tag-docker-tutorial","tag-how-to-install-docker","tag-how-to-install-docker-in-ubuntu-20-04-lts","tag-how-to-install-docker-on-ubuntu","tag-how-to-install-docker-on-ubuntu-20-04","tag-how-to-install-docker-on-ubuntu-20-04-lts","tag-how-to-install-docker-on-ubuntu-20-04-os","tag-install-docker","tag-install-docker-in-ubuntu","tag-install-docker-in-ubuntu-20-04","tag-install-docker-on-linux","tag-install-docker-on-ubuntu","tag-install-docker-on-ubuntu-20-04","tag-install-docker-ubuntu","tag-ubuntu-20-04","tag-ubuntu-lts-version"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - 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