Install Docker
Last updated
Last updated
To install Docker Engine, you need the 64-bit version of one of these Ubuntu versions:
Ubuntu Kinetic 22.10
Ubuntu Jammy 22.04 (LTS)
Ubuntu Focal 20.04 (LTS)
Ubuntu Bionic 18.04 (LTS)
Docker Engine is compatible with x86_64 (or amd64), armhf, arm64, and s390x architectures.
Older versions of Docker went by the names of docker, docker.io, or docker-engine. Uninstall any such older versions before attempting to install a new version:
It’s OK if apt-get reports that none of these packages are installed.
Images, containers, volumes, and networks stored in /var/lib/docker/ aren’t automatically removed when you uninstall Docker. If you want to start with a clean installation, and prefer to clean up any existing data, refer to the section.
You can install Docker Engine in different ways, depending on your needs:
Before you install Docker Engine for the first time on a new host machine, you need to set up the Docker repository. Afterward, you can install and update Docker from the repository.
Set up the repository
Update the apt package index and install packages to allow apt to use a repository over HTTPS:
Add Docker’s official GPG key:
Use the following command to set up the repository:
Update the apt package index:
Receiving a GPG error when running apt-get update?
Install Docker Engine, containerd, and Docker Compose.
To install the latest version, run:
To install a specific version of Docker Engine, start by list the available versions in the repository:
Select the desired version and install:
Verify that the Docker Engine installation is successful by running the hello-world image:
This command downloads a test image and runs it in a container. When the container runs, it prints a confirmation message and exits.
You have now successfully installed and started Docker Engine.
Upgrade Docker Engine
If you can’t use Docker’s apt repository to install Docker Engine, you can download the deb file for your release and install it manually. You need to download a new file each time you want to upgrade Docker Engine.
Select your Ubuntu version in the list.
Go to pool/stable/ and select the applicable architecture (amd64, armhf, arm64, or s390x).
Download the following deb files for the Docker Engine, CLI, containerd, and Docker Compose packages:
containerd.io_<version>_<arch>.deb
docker-ce_<version>_<arch>.deb
docker-ce-cli_<version>_<arch>.deb
docker-buildx-plugin_<version>_<arch>.deb
docker-compose-plugin_<version>_<arch>.deb
Install the .deb packages. Update the paths in the following example to where you downloaded the Docker packages.
The Docker daemon starts automatically.
Verify that the Docker Engine installation is successful by running the hello-world image:
This command downloads a test image and runs it in a container. When the container runs, it prints a confirmation message and exits.
You have now successfully installed and started Docker Engine.
Upgrade Docker Engine
You have now successfully installed and started Docker Engine.
The docker service starts automatically on Debian based distributions. On RPM based distributions, such as CentOS, Fedora, RHEL or SLES, you need to start it manually using the appropriate systemctl or service command. As the message indicates, non-root users can’t run Docker commands by default.
Install pre-releases
To install the latest version of Docker on Linux from the test channel, run:
Upgrade Docker after using the convenience script
If you installed Docker using the convenience script, you should upgrade Docker using your package manager directly. There’s no advantage to re-running the convenience script. Re-running it can cause issues if it attempts to re-install repositories which already exist on the host machine.
Docker Engine comes bundled with . This is the easiest and quickest way to get started.
You can also set up and install Docker Engine from .
and manage upgrades manually.
Using a . Only recommended for testing and development environments.
Your default may be incorrectly configured, preventing detection of the repository public key file. Try granting read permission for the Docker public key file before updating the package index:
The docker user group exists but contains no users, which is why you’re required to use sudo to run Docker commands. Continue to to allow non-privileged users to run Docker commands and for other optional configuration steps.
To upgrade Docker Engine, follow the , choosing the new version you want to install.
Go to .
The docker user group exists but contains no users, which is why you’re required to use sudo to run Docker commands. Continue to to allow non-privileged users to run Docker commands and for other optional configuration steps.
To upgrade Docker Engine, download the newer package file and repeat the , pointing to the new file.
Docker provides a convenience script at to install Docker into development environments non-interactively.
The convenience script isn’t recommended for production environments, but it’s useful for creating a provisioning script tailored to your needs. Also refer to the steps to learn about installation steps to install using the package repository. The source code for the script is open source, and can be found in the .
This example downloads the script from and runs it to install the latest stable release of Docker on Linux:
The installation script requires root or sudo privileges to install and use Docker. If you want to grant non-root users access to Docker, refer to the . You can also install Docker without root privileges, or configured to run in rootless mode. For instructions on running Docker in rootless mode, refer to .
Docker also provides a convenience script at to install pre-releases of Docker on Linux. This script is equal to the script at get.docker.com, but configures your package manager to use the test channel of the Docker package repository. The test channel includes both stable and pre-releases (beta versions, release-candidates) of Docker. Use this script to get early access to new releases, and to evaluate them in a testing environment before they’re released as stable.