You can build, package, and deploy apps as containers using the Docker platform. Because of their efficiency and minimal weight, containers make it easy to deploy programs quickly and uniformly across many environments. We will install Docker on Ubuntu 22.04 LTS in this tutorial.
Install Docker on Ubuntu 22.04 LTS
Before you begin, you will need to have the following prerequisites in place:
, it is important to note that Docker requires a 64-bit version of Ubuntu and a kernel version of 3.10 or higher. You can check your Ubuntu version by running the following command in a terminal:
$ lsb_release -a
And you can check your kernel version by running the following command:
$ uname -r
With that said, let’s move on to the installation process.
Step 1: Update the Package Index
The first step is to update the package index on your Ubuntu machine. You can do this by running the following command in a terminal:
sudo apt-get update
Step 2: Install Docker Dependencies
Docker requires several dependencies in order to run on Ubuntu. You can install these dependencies by running the following command:
sudo apt-get install -y apt-transport-https ca-certificates curl gnupg-agent software-properties-common
Step 3: Add the Docker GPG Key
Next, you need to add the Docker GPG key to your system. You can do this by running the following command:
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
Step 4: Add the Docker Repository
Now that you have added the Docker GPG key, you can add the Docker repository to your system. You can do this by running the following command:
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
Step 5: Update the Package Index
It’s important to update the package index once again after adding the Docker repository. You can do this by running the following command:
sudo apt-get update
Step 6: Install Docker
Finally, you can install Docker by running the following command:
sudo apt-get install -y docker-ce docker-ce-cli containerd.io
Step 7: Verify the Installation
To verify that Docker has been installed successfully, you can run the following command:
sudo docker run hello-world
This should display a message indicating that Docker has been installed and is working correctly.
It’s done now! In Ubuntu 22.04 LTS, Docker has been successfully installed. Building, packaging, and deploying your applications with Docker is now possible. Never be hesitate to reach out to the Docker community for support.