Docker-Docs/engine/install/debian.md

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Instructions for installing Docker Engine on Debian requirements, apt, installation, debian, install, uninstall, upgrade, update
/engine/installation/debian/
/engine/installation/linux/raspbian/
/engine/installation/linux/debian/
/engine/installation/linux/docker-ce/debian/
/install/linux/docker-ce/debian/
Install Docker Engine on Debian 4

To get started with Docker Engine on Debian, make sure you meet the prerequisites, then install Docker.

Prerequisites

OS requirements

To install Docker Engine, you need the 64-bit version of one of these Debian or Raspbian versions:

  • Debian Buster 10 (stable)
  • Debian Stretch 9 / Raspbian Stretch

Docker Engine is supported on x86_64 (or amd64), armhf, and arm64 architectures.

Uninstall old versions

Older versions of Docker were called docker, docker.io, or docker-engine. If these are installed, uninstall them:

$ sudo apt-get remove docker docker-engine docker.io containerd runc

It's OK if apt-get reports that none of these packages are installed.

The contents of /var/lib/docker/, including images, containers, volumes, and networks, are preserved. The Docker Engine package is now called docker-ce.

Installation methods

You can install Docker Engine in different ways, depending on your needs:

  • Most users set up Docker's repositories and install from them, for ease of installation and upgrade tasks. This is the recommended approach, except for Raspbian.

  • Some users download the DEB package and install it manually and manage upgrades completely manually. This is useful in situations such as installing Docker on air-gapped systems with no access to the internet.

  • In testing and development environments, some users choose to use automated convenience scripts to install Docker. This is currently the only approach for Raspbian.

Install using the repository

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.

Raspbian users cannot use this method!

For Raspbian, installing using the repository is not yet supported. You must instead use the convenience script.

Set up the repository

{% assign download-url-base = "https://download.docker.com/linux/debian" %}

  1. Update the apt package index and install packages to allow apt to use a repository over HTTPS:

    $ sudo apt-get update
    
    $ sudo apt-get install \
        apt-transport-https \
        ca-certificates \
        curl \
        gnupg-agent \
        software-properties-common
    
  2. Add Docker's official GPG key:

    $ curl -fsSL {{ download-url-base }}/gpg | sudo apt-key add -
    

    Verify that you now have the key with the fingerprint 9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88, by searching for the last 8 characters of the fingerprint.

    $ sudo apt-key fingerprint 0EBFCD88
    
    pub   4096R/0EBFCD88 2017-02-22
          Key fingerprint = 9DC8 5822 9FC7 DD38 854A  E2D8 8D81 803C 0EBF CD88
    uid                  Docker Release (CE deb) <docker@docker.com>
    sub   4096R/F273FCD8 2017-02-22
    
  3. Use the following command to set up the stable repository. To add the nightly or test repository, add the word nightly or test (or both) after the word stable in the commands below. Learn about nightly and test channels.

    Note: The lsb_release -cs sub-command below returns the name of your Debian distribution, such as helium. Sometimes, in a distribution like BunsenLabs Linux, you might need to change $(lsb_release -cs) to your parent Debian distribution. For example, if you are using BunsenLabs Linux Helium, you could use stretch. Docker does not offer any guarantees on untested and unsupported Debian distributions.

    • x86_64 / amd64
    • armhf
    • arm64
    $ sudo add-apt-repository \
       "deb [arch=amd64] {{ download-url-base }} \
       $(lsb_release -cs) \
       stable"
    
    $ sudo add-apt-repository \
       "deb [arch=armhf] {{ download-url-base }} \
       $(lsb_release -cs) \
       stable"
    
    $ sudo add-apt-repository \
       "deb [arch=arm64] {{ download-url-base }} \
       $(lsb_release -cs) \
       stable"
    

Install Docker Engine

Note: This procedure works for Debian on x86_64 / amd64, Debian ARM, or Raspbian.

  1. Update the apt package index, and install the latest version of Docker Engine and containerd, or go to the next step to install a specific version:

    $ sudo apt-get update
    $ sudo apt-get install docker-ce docker-ce-cli containerd.io
    

    Got multiple Docker repositories?

    If you have multiple Docker repositories enabled, installing or updating without specifying a version in the apt-get install or apt-get update command always installs the highest possible version, which may not be appropriate for your stability needs.

  2. To install a specific version of Docker Engine, list the available versions in the repo, then select and install:

    a. List the versions available in your repo:

    $ apt-cache madison docker-ce
    
      docker-ce | 5:18.09.1~3-0~debian-stretch | {{ download-url-base }} stretch/stable amd64 Packages
      docker-ce | 5:18.09.0~3-0~debian-stretch | {{ download-url-base }} stretch/stable amd64 Packages
      docker-ce | 18.06.1~ce~3-0~debian        | {{ download-url-base }} stretch/stable amd64 Packages
      docker-ce | 18.06.0~ce~3-0~debian        | {{ download-url-base }} stretch/stable amd64 Packages
      ...
    

    b. Install a specific version using the version string from the second column, for example, 5:18.09.1~3-0~debian-stretch .

    $ sudo apt-get install docker-ce=<VERSION_STRING> docker-ce-cli=<VERSION_STRING> containerd.io
    
  3. Verify that Docker Engine is installed correctly by running the hello-world image.

    $ sudo docker run hello-world
    

    This command downloads a test image and runs it in a container. When the container runs, it prints an informational message and exits.

Docker Engine is installed and running. The docker group is created but no users are added to it. You need to use sudo to run Docker commands. Continue to Linux postinstall to allow non-privileged users to run Docker commands and for other optional configuration steps.

Upgrade Docker Engine

To upgrade Docker Engine, first run sudo apt-get update, then follow the installation instructions, choosing the new version you want to install.

Install from a package

If you cannot use Docker's 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.

  1. Go to [{{ download-url-base }}/dists/]({{ download-url-base }}/dists/){: target="blank" rel="noopener" class="" }, choose your Debian version, then browse to pool/stable/, choose amd64, armhf, or arm64 and download the .deb file for the Docker version you want to install.

    Note: To install a nightly or test (pre-release) package, change the word stable in the above URL to nightly or test. Learn about nightly and test channels.

  2. Install Docker Engine, changing the path below to the path where you downloaded the Docker package.

    $ sudo dpkg -i /path/to/package.deb
    

    The Docker daemon starts automatically.

  3. Verify that Docker Engine is installed correctly by running the hello-world image.

    $ sudo docker run hello-world
    

    This command downloads a test image and runs it in a container. When the container runs, it prints an informational message and exits.

Docker Engine is installed and running. The docker group is created but no users are added to it. You need to use sudo to run Docker commands. Continue to Post-installation steps for Linux to allow non-privileged users to run Docker commands and for other optional configuration steps.

Upgrade Docker Engine

To upgrade Docker Engine, download the newer package file and repeat the installation procedure, pointing to the new file.

{% include install-script.md %}

Uninstall Docker Engine

  1. Uninstall the Docker Engine, CLI, and Containerd packages:

    $ sudo apt-get purge docker-ce docker-ce-cli containerd.io
    
  2. Images, containers, volumes, or customized configuration files on your host are not automatically removed. To delete all images, containers, and volumes:

    $ sudo rm -rf /var/lib/docker
    $ sudo rm -rf /var/lib/containerd
    

You must delete any edited configuration files manually.

Next steps