Installing Docker on Ubuntu 22.04<\/h2>\n\n\n\n
There are several ways you can install Docker on your Ubuntu 22.04 system. For example, it is available in the official Ubuntu repositories, where it can be easily installed with a single APT command<\/a>. However, one disadvantage to this approach is that the version available is not always the most recent.<\/p>\n\n\n\n For this reason, this guide will show you how to install Docker on Ubuntu 22.04 from the official Docker repository, where you always get the latest up-to-date version and will automatically receive all future software updates as they become available. So, let’s get started.<\/p>\n\n\n\n First, run the two commands below to update the package index and install the prerequisite necessary to add and use a new HTTPS repository.<\/p>\n\n\n Next, import the Docker GPG repository key to your Ubuntu system. This security feature ensures that the software you’re installing is authentic.<\/p>\n\n\n Notice that the command produces no output.<\/p>\n\n\n\n After importing the GPG keys, we\u2019ll add the official Docker repository to our Ubuntu 22.04 system. This implies that the update package will be made available with the rest of your system\u2019s regular updates if a new version is released.<\/p>\n\n\n As with the previous command, its execution produces no output.<\/p>\n\n\n\n Next, refresh the package list.<\/p>\n\n\n As you can see, our new Docker repository is now available and ready to be used.<\/p>\n\n\n\n To install the latest up-to-date Docker release on Ubuntu, run the below command. <\/p>\n\n\n This installs the following Docker components:<\/p>\n\n\n\n That’s all! Docker should now be installed; the service started and enabled to start automatically on boot.<\/p>\n\n\n\n In addition, you can check the Docker service status using the following:<\/p>\n\n\n Now let’s check if everything with our new Docker installation works properly. For this purpose, we will run a simple application called “hello-world.”<\/p>\n\n\n Congratulations! As we can see, everything works as expected!<\/p>\n\n\n\n So far, we have successfully installed Docker on your Ubuntu 22.04 system.<\/p>\n\n\n\n However, only root and users with sudo privileges<\/a> can execute Docker commands by default. In other words, if you attempt to run the So, to run Docker commands as a non-root user, you must add your user to the docker group. To do that, type in the following:<\/p>\n\n\n In the above command, Docker is a powerful tool that can significantly enhance your ability to manage and deploy applications lightweight and efficiently. By following the steps outlined in this article, you should have a working Docker installation on your Ubuntu 22.04 system.<\/p>\n\n\n\n Furthermore, Docker Desktop<\/a> is your solution if you want to make things even easier and manage your containers through an intuitive and easy-to-use GUI app. Here’s our tutorial<\/a> on how to install it on Ubuntu.<\/p>\n\n\n\n So, what are you waiting for? Start experimenting with Docker on your Ubuntu system today and see how it can revolutionize how you build and deploy applications.<\/p>\n\n\n\nStep 1: Install Prerequisites<\/h3>\n\n\n\n
sudo apt update\nsudo apt install apt-transport-https ca-certificates curl gnupg lsb-release<\/code><\/span>Code language:<\/span> Bash<\/span> (<\/span>bash<\/span>)<\/span><\/small><\/pre>\n\n\nStep 2: Add Docker\u2019s Official GPG Key<\/h3>\n\n\n\n
curl -fsSL https:\/\/download.docker.com\/linux\/ubuntu\/gpg | sudo gpg --dearmor -o \/etc\/apt\/keyrings\/docker.gpg<\/code><\/span>Code language:<\/span> Bash<\/span> (<\/span>bash<\/span>)<\/span><\/small><\/pre>\n\n\n![\"Add](\"https:\/\/linuxiac.com\/wp-content\/uploads\/2021\/06\/ubuntu-docker-gpg.jpg\")
<\/a>Step 3: Add Docker Repo to Ubuntu 22.04<\/h3>\n\n\n\n
echo<\/span> \"deb [arch=$(dpkg --print-architecture)<\/span> signed-by=\/etc\/apt\/keyrings\/docker.gpg] https:\/\/download.docker.com\/linux\/ubuntu $(lsb_release -cs)<\/span> stable\"<\/span> | sudo tee \/etc\/apt\/sources.list.d\/docker.list > \/dev\/null<\/code><\/span>Code language:<\/span> Bash<\/span> (<\/span>bash<\/span>)<\/span><\/small><\/pre>\n\n\n![\"Add](\"https:\/\/linuxiac.com\/wp-content\/uploads\/2021\/06\/ubuntu-docker-add-repo.jpg\")
<\/a>sudo apt update<\/code><\/span>Code language:<\/span> Bash<\/span> (<\/span>bash<\/span>)<\/span><\/small><\/pre>\n\n\n![\"Update](\"https:\/\/linuxiac.com\/wp-content\/uploads\/2021\/06\/ubuntu-docker-update-package-index.jpg\")
<\/a>Step 4: Install Docker on Ubuntu 22.04<\/h3>\n\n\n\n
sudo apt install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin<\/code><\/span>Code language:<\/span> Bash<\/span> (<\/span>bash<\/span>)<\/span><\/small><\/pre>\n\n\n![\"Install](\"https:\/\/linuxiac.com\/wp-content\/uploads\/2021\/06\/ubuntu-docker-install.jpg\")
<\/a>\n
sudo systemctl is-active docker<\/code><\/span>Code language:<\/span> Bash<\/span> (<\/span>bash<\/span>)<\/span><\/small><\/pre>\n\n\n![\"Check](\"https:\/\/linuxiac.com\/wp-content\/uploads\/2021\/06\/ubuntu-docker-check-status.jpg\")
<\/a>Step 5: Verify the Docker Installation<\/h3>\n\n\n\n
sudo docker run hello-world<\/code><\/span>Code language:<\/span> Bash<\/span> (<\/span>bash<\/span>)<\/span><\/small><\/pre>\n\n\n![\"Docker](\"https:\/\/linuxiac.com\/wp-content\/uploads\/2021\/06\/ubuntu-docker-verify-installtion.jpg\")
<\/a>Enabling Non-root Users to Run Docker Commands<\/h2>\n\n\n\n
docker<\/code> command without prefixing it with sudo<\/code>, you\u2019ll get an error message like this:<\/p>\n\n\n\n![\"Docker](\"https:\/\/linuxiac.com\/wp-content\/uploads\/2021\/06\/ubuntu-docker-access-denied.jpg\")
<\/a>sudo usermod -aG docker ${USER}<\/span><\/code><\/span>Code language:<\/span> Bash<\/span> (<\/span>bash<\/span>)<\/span><\/small><\/pre>\n\n\n${USER}<\/code> is an environment variable that holds your username. To apply for the new group membership, reboot your Ubuntu system. You will then be able to execute docker<\/code> commands without having to prefix them with sudo<\/code>.<\/p>\n\n\n\n![\"Run](\"https:\/\/linuxiac.com\/wp-content\/uploads\/2021\/06\/ubuntu-docker-regulat-user.jpg\")
<\/a>Conclusion<\/h2>\n\n\n\n