docs/install/linux/docker-ce/debian.md

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Instructions for installing Docker CE 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/
Get Docker CE for Debian 4

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

Prerequisites

Docker EE customers

Docker EE is not supported on Debian. For a list of supported operating systems and distributions for different Docker editions, see Docker variants.

OS requirements

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

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

Docker CE 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 CE package is now called docker-ce.

Install Docker CE

You can install Docker CE 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 CE 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:

    $ sudo apt-get update
    
  2. Install packages to allow apt to use a repository over HTTPS:

    $ sudo apt-get install \
        apt-transport-https \
        ca-certificates \
        curl \
        gnupg2 \
        software-properties-common
    
  3. 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
    
  4. 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 CE

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

  1. Update the apt package index.

    $ sudo apt-get update
    
  2. Install the latest version of Docker CE, or go to the next step to install a specific version:

    $ sudo apt-get install docker-ce
    

    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.

  3. To install a specific version of Docker CE, 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>
    
  4. Verify that Docker CE 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 CE 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 CE

To upgrade Docker CE, 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 CE, 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" class="" }, choose your Debian version, browse to pool/stable/, choose amd64, armhf, or arm64 and download the .deb file for the Docker CE version you want to install.

    Note: To install a nightly package, change the word stable in the URL to nightly. Learn about nightly and test channels.

  2. Install Docker CE, 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 CE 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 CE 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 CE

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

{% include install-script.md %}

Uninstall Docker CE

  1. Uninstall the Docker CE package:

    $ sudo apt-get purge docker-ce
    
  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
    

You must delete any edited configuration files manually.

Next steps