Get Docker for Debian or Raspbian
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To get started with Docker on Debian, make sure you meet the prerequisites, then install Docker.
Prerequisites
OS requirements
To install Docker, you need the 64-bit version of one of these Debian or Raspbian versions:
- Stretch (testing)
- Jessie 8.0 (LTS) / Raspbian Jessie
- Wheezy 7.7 (LTS)
Extra steps for Wheezy 7.7
You need at least version 3.10 of the Linux kernel. Debian Wheezy ships with version 3.2, so you may need toupdate the kernel. To check your kernel version:
$ uname -r
Enable the
backports
repository. See the Debian documentation.
Install Docker
You can install Docker 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.
Some users download the DEB package and install it manually and manage upgrades completely manually.
Some users cannot use the official Docker repositories, and must rely on the version of Docker that comes with their operating system. This version of Docker may be out of date. Those users should consult their operating system documentation and not follow these procedures.
Install using the repository
Before you install Docker for the first time on a new host machine, you need to set up the Docker repository. Afterward, you can install, update, or downgrade Docker from the repository.
Set up the repository
Install packages to allow
apt
to use a repository over HTTPS:Jessie or Stretch:
$ sudo apt-get install -y --no-install-recommends \ apt-transport-https \ ca-certificates \ curl \ software-properties-common
Wheezy:
$ sudo apt-get install -y --no-install-recommends \ apt-transport-https \ ca-certificates \ curl \ python-software-properties
Add Docker’s official GPG key:
$ curl -fsSL https://apt.dockerproject.org/gpg | sudo apt-key add -
Verify that the key ID is
58118E89F3A912897C070ADBF76221572C52609D
.$ apt-key fingerprint 58118E89F3A912897C070ADBF76221572C52609D pub 4096R/2C52609D 2015-07-14 Key fingerprint = 5811 8E89 F3A9 1289 7C07 0ADB F762 2157 2C52 609D uid Docker Release Tool (releasedocker) <docker@docker.com>
Use the following command to set up the stable repository.
Note: The
lsb_release -cs
sub-command below returns the name of your Debian distribution, such asjessie
.Debian:
$ sudo add-apt-repository \ "deb https://apt.dockerproject.org/repo/ \ debian-$(lsb_release -cs) \ main"
Raspbian:
$ sudo add-apt-repository \ "deb https://apt.dockerproject.org/repo/ \ raspbian-$(lsb_release -cs) \ main"
To enable the
testing
repository, you can edit/etc/apt/sources.list
and add the wordtesting
aftermain
on the appropriate line of the file. Do not use unstable repositories on production systems or for non-testing workloads.
Install Docker
Update the
apt
package index.$ sudo apt-get update
Install the latest version of Docker, or go to the next step to install a specific version. Any existing installation of Docker is replaced.
Use this command to install the latest version of Docker:
$ sudo apt-get -y install docker-engine
Warning: If you have both stable and unstable repositories enabled, updating to the latest version of Docker by not specifying a version in the
apt-get install
orapt-get update
command will always install the highest possible version, which will almost certainly be an unstable one.On production systems, you should install a specific version of Docker instead of always using the latest. This output is truncated. List the available versions:
$ apt-cache madison docker-enginedocker-engine | 1.13.0-0~stretch | https://apt.dockerproject.org/repo debian-stretch/main amd64 Packagesdocker-engine | 1.12.3-0~stretch | https://apt.dockerproject.org/repo debian-stretch/main amd64 Packagesdocker-engine | 1.12.2-0~stretch | https://apt.dockerproject.org/repo debian-stretch/main amd64 Packagesdocker-engine | 1.12.1-0~stretch | https://apt.dockerproject.org/repo debian-stretch/main amd64 Packages
The contents of the list depend upon which repositories are enabled, and will be specific to your version of Debian (indicated by the
stretch
suffix on the version, in this example). Choose a specific version to install. The second column is the version string. The third column is the repository name, which indicates which repository the package is from and by extension its stability level. To install a specific version, append the version string to the package name and separate them by an equals sign (=
):$ sudo apt-get -y install docker-engine=<VERSION_STRING>
On Debian, the Docker daemon starts automatically. On Raspbian, start Docker:
$ sudo service docker start
Verify that
docker
is installed correctly by running thehello-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 is installed and running. 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
To upgrade Docker, 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, you can download the .deb
file for your release and install it manually. You will need to download a new file each time you want to upgrade Docker.
Go to https://apt.dockerproject.org/repo/pool/main/d/docker-engine/ and download the
.deb
file for the Docker version you want to install and for your version of Debian or Raspbian.Note: To install a testing version, change the word
main
in the URL totesting
. Do not use unstable versions of Docker in production or for non-testing workloads.Install Docker, changing the path below to the path where you downloaded the Docker package.
$ sudo dpkg -i /path/to/package.deb
On Debian, the Docker daemon starts automatically. On Raspbian, start Docker:
$ sudo service docker start
Verify that
docker
is installed correctly by running thehello-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 is installed and running. 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
To upgrade Docker, download the newer package file and repeat the installation procedure, pointing to the new file.
Uninstall Docker
Uninstall the Docker package:
$ sudo apt-get purge docker-engine
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.
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