From:
Snapshot-Content-Location: https://docs.docker.com/engine/install/ubuntu/#uninstall-docker-engine
Subject: Install Docker Engine on Ubuntu | Docker Documentation
Date: Mon, 24 May 2021 07:32:10 -0000
MIME-Version: 1.0
Content-Type: multipart/related;
type="text/html";
boundary="----MultipartBoundary--NvpcdfSE0hYdBVxxceVt5D0PABCW1HbNo6nTHbjjrJ----"
------MultipartBoundary--NvpcdfSE0hYdBVxxceVt5D0PABCW1HbNo6nTHbjjrJ----
Content-Type: text/html
Content-ID: [email protected]
Content-Transfer-Encoding: binary
Content-Location: https://docs.docker.com/engine/install/ubuntu/#uninstall-docker-engine
<title>Install Docker Engine on Ubuntu | Docker Documentation</title>
</header>
<div class="wrapper right-open">
<div class="container-fluid">
<div class="row">
<div class="col-body">
<main class="col-content content">
<section class="section"><h1>Install Docker Engine on Ubuntu</h1><p><em class="reading-time">Estimated reading time: 10 minutes</em></p><p>To get started with Docker Engine on Ubuntu, 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 Ubuntu
versions:
- Ubuntu Hirsute 21.04
- Ubuntu Groovy 20.10
- Ubuntu Focal 20.04 (LTS)
- Ubuntu Bionic 18.04 (LTS)
- Ubuntu Xenial 16.04 (LTS)
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. If you do not need to save your existing data, and want to
start with a clean installation, refer to the uninstall Docker Engine
section at the bottom of this page.
Supported storage drivers
Docker Engine on Ubuntu supports overlay2
, aufs
and btrfs
storage drivers.
Docker Engine uses the overlay2
storage driver by default. If you need to use
aufs
instead, you need to configure it manually.
See use the AUFS storage driver
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.
-
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.
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.
Set up the repository
-
Update the apt
package index and install packages to allow apt
to use a
repository over HTTPS:
<div class="language-console highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="gp">$</span> <span class="nb">sudo </span>apt-get update
$ sudo apt-get install \
apt-transport-https \
ca-certificates \
curl \
gnupg \
lsb-release
-
Add Docker’s official GPG key:
<div class="language-console highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="gp">$</span> curl <span class="nt">-fsSL</span> https://download.docker.com/linux/ubuntu/gpg | <span class="nb">sudo </span>gpg <span class="nt">--dearmor</span> <span class="nt">-o</span> /usr/share/keyrings/docker-archive-keyring.gpg
-
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.
<blockquote>
<p><strong>Note</strong>: The <code class="highlighter-rouge">lsb_release -cs</code> sub-command below returns the name of your
Ubuntu distribution, such as xenial
. Sometimes, in a distribution
like Linux Mint, you might need to change $(lsb_release -cs)
to your parent Ubuntu distribution. For example, if you are using
Linux Mint Tessa
, you could use bionic
. Docker does not offer any guarantees on untested
and unsupported Ubuntu distributions.
<ul class="nav nav-tabs">
<li class="active"><a data-toggle="tab" data-target="#x86_64_repo">x86_64 / amd64</a></li>
<li><a data-toggle="tab" data-target="#armhf_repo">armhf</a></li>
<li><a data-toggle="tab" data-target="#arm64_repo">arm64</a></li>
</ul>
<div class="tab-content">
<div id="x86_64_repo" class="tab-pane fade in active">
<div class="language-console highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="gp">$</span> <span class="nb">echo</span> <span class="se">\</span>
"deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu </span>
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
</div>
<div id="armhf_repo" class="tab-pane fade">
<div class="language-console highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="gp">$</span> <span class="nb">echo</span> <span class="se">\</span>
"deb [arch=armhf signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu </span>
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
</div>
<div id="arm64_repo" class="tab-pane fade">
<div class="language-console highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="gp">$</span> <span class="nb">echo</span> <span class="se">\</span>
"deb [arch=arm64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu </span>
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
</div>
</div>
<p><!-- tab-content --></p>
Install Docker Engine
-
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:
<div class="language-console highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="gp"> $</span> <span class="nb">sudo </span>apt-get update
$ sudo apt-get install docker-ce docker-ce-cli containerd.io
<blockquote>
<p>Got multiple Docker repositories?</p>
<p>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.
-
To install a specific version of Docker Engine, list the available versions
in the repo, then select and install:
<p>a. List the versions available in your repo:</p>
<div class="language-console highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="gp">$</span> apt-cache madison docker-ce
docker-ce | 5:18.09.1~3-0~ubuntu-xenial | https://download.docker.com/linux/ubuntu xenial/stable amd64 Packages
docker-ce | 5:18.09.0~3-0~ubuntu-xenial | https://download.docker.com/linux/ubuntu xenial/stable amd64 Packages
docker-ce | 18.06.1~ce~3-0~ubuntu | https://download.docker.com/linux/ubuntu xenial/stable amd64 Packages
docker-ce | 18.06.0~ce~3-0~ubuntu | https://download.docker.com/linux/ubuntu xenial/stable amd64 Packages
<p>b. Install a specific version using the version string from the second column,
for example, 5:18.09.13-0ubuntu-xenial
.
<div class="language-console highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="gp">$</span> <span class="nb">sudo </span>apt-get install docker-ce<span class="o">=</span><VERSION_STRING> docker-ce-cli<span class="o">=</span><VERSION_STRING> containerd.io
-
Verify that Docker Engine is installed correctly by running the hello-world
image.
<div class="language-console highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="gp">$</span> <span class="nb">sudo </span>docker run hello-world
<p>This command downloads a test image and runs it in a container. When the
container runs, it prints an informational message and exits.
Docker Engine is installed and running. The docker
group is created but no users
are added to it. You need to use sudo
to run Docker commands.
Continue to Linux postinstall to allow non-privileged
users to run Docker commands and for other optional configuration steps.
Upgrade Docker Engine
To upgrade Docker Engine, first run sudo apt-get update
, then follow the
installation instructions, choosing the new
version you want to install.
Install from a package
If you cannot use Docker’s repository to install Docker Engine, you can download the
.deb
file for your release and install it manually. You need to download
a new file each time you want to upgrade Docker.
-
Go to https://download.docker.com/linux/ubuntu/dists/
,
choose your Ubuntu version, then browse to pool/stable/
, choose amd64
,
armhf
, or arm64
, and download the .deb
file for the Docker Engine
version you want to install.
<blockquote>
<p><strong>Note</strong>: To install a <strong>nightly</strong> or <strong>test</strong> (pre-release) package,
change the word stable
in the above URL to nightly
or test
.
Learn about nightly and test channels.
-
Install Docker Engine, changing the path below to the path where you downloaded
the Docker package.
<div class="language-console highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="gp">$</span> <span class="nb">sudo </span>dpkg <span class="nt">-i</span> /path/to/package.deb
<p>The Docker daemon starts automatically.</p>
-
Verify that Docker Engine is installed correctly by running the hello-world
image.
<div class="language-console highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="gp">$</span> <span class="nb">sudo </span>docker run hello-world
<p>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.
Install using the convenience script
Docker provides convenience scripts at get.docker.com
and test.docker.com for installing edge and
testing versions of Docker Engine - Community into development environments quickly and
non-interactively. The source code for the scripts is in the
docker-install
repository.
Using these scripts is not recommended for production
environments, and you should understand the potential risks before you use
them:
- The scripts require
root
or sudo
privileges to run. Therefore,
you should carefully examine and audit the scripts before running them.
- The scripts attempt to detect your Linux distribution and version and
configure your package management system for you. In addition, the scripts do
not allow you to customize any installation parameters. This may lead to an
unsupported configuration, either from Docker’s point of view or from your own
organization’s guidelines and standards.
- The scripts install all dependencies and recommendations of the package
manager without asking for confirmation. This may install a large number of
packages, depending on the current configuration of your host machine.
- The script does not provide options to specify which version of Docker to install,
and installs the latest version that is released in the “edge” channel.
- Do not use the convenience script if Docker has already been installed on the
host machine using another mechanism.
This example uses the script at get.docker.com to
install the latest release of Docker Engine - Community on Linux. To install the latest
testing version, use test.docker.com instead. In
each of the commands below, replace each occurrence of get
with test
.
Warning:
Always examine scripts downloaded from the internet before
running them locally.
$ curl -fsSL https://get.docker.com -o get-docker.sh
$ sudo sh get-docker.sh
<...>
If you would like to use Docker as a non-root user please see the
post-installation steps for Linux.
Docker Engine - Community is installed. It starts automatically on DEB
-based distributions. On
RPM
-based distributions, 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.
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 is no advantage to re-running the
convenience script, and it can cause issues if it attempts to re-add
repositories which have already been added to the host machine.
Uninstall Docker Engine
-
Uninstall the Docker Engine, CLI, and Containerd packages:
<div class="language-console highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="gp">$</span> <span class="nb">sudo </span>apt-get purge docker-ce docker-ce-cli containerd.io
-
Images, containers, volumes, or customized configuration files on your host
are not automatically removed. To delete all images, containers, and
volumes:
<div class="language-console highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="gp">$</span> <span class="nb">sudo </span>rm <span class="nt">-rf</span> /var/lib/docker
$ sudo rm -rf /var/lib/containerd
You must delete any edited configuration files manually.
Next steps
requirements, apt, installation, ubuntu, install, uninstall, upgrade, update
<div class="container">
<div class="top_footer">
<div class="row">
<div class="col-xs-12 col-sm-3 col-md-3">
<ul class="footer_links">
<li><b><a href="https://www.docker.com/why-docker">Why Docker?</a></b></li>
<li><a href="https://www.docker.com/what-container">What is a Container?</a></li>
<li><a href="https://www.docker.com/dockercon-live/2021/?utm_source=docker&utm_medium=webreferral&utm_campaign=docs-driven-registration-dockercon">Register for DockerCon21</a></li>
<li><b><a href="https://www.docker.com/products/overview">Products</a></b></li>
<li><a href="https://www.docker.com/products/docker-desktop">Docker Desktop</a></li>
<li><a href="https://www.docker.com/products/docker-hub">Docker Hub</a></li>
<li><a href="https://www.docker.com/roadmap">Docker Product Roadmap</a></li>
<li><b><a href="https://www.docker.com/products/docker-desktop">Features</a></b></li>
<li><a href="https://www.docker.com/products/container-runtime">Container Runtime</a></li>
<li><a href="https://www.docker.com/products/developer-tools">Developer Tools</a></li>
</ul>
</div>
<div class="col-xs-12 col-sm-3 col-md-3">
<ul class="footer_links">
<li><b><a href="https://www.docker.com/products/docker-desktop">Developers</a></b></li>
<li><a href="https://www.docker.com/use-cases">Use Cases</a></li>
<li><a href="https://www.docker.com/play-with-docker">Play with Docker</a></li>
<li><a href="https://www.docker.com/docker-community">Community</a></li>
<li><a href="https://www.docker.com/open-source">Open Source</a></li>
<li><a href="https://www.docker.com/community/docker-captains">Docker Captains</a></li>
</ul>
</div>
<div class="col-xs-12 col-sm-3 col-md-3">
<ul class="footer_links">
<li><b><a href="https://www.docker.com/products/docker-desktop">Pricing</a></b></li>
<li><a href="https://www.docker.com/pricing/faq">FAQs</a></li>
<li><a href="https://www.docker.com/partners/programs">Verified Publisher Program</a></li>
</ul>
</div>
<div class="col-xs-12 col-sm-3 col-md-3">
<ul class="footer_links">
<li><b><a href="https://www.docker.com/company" target="_blank" rel="noopener">Company</a></b></li>
<li><a href="https://www.docker.com/company">About Us</a></li>
<li><a href="https://www.docker.com/blog/" target="_blank" rel="noopener">Blog</a></li>
<li><a href="https://www.docker.com/customers">Customers</a></li>
<li><a href="https://www.docker.com/partners">Partners</a></li>
<li><a href="https://www.docker.com/company/newsroom">Newsroom</a></li>
<li><a href="https://www.docker.com/careers">Careers</a></li>
<li><a href="https://www.docker.com/company/contact">Contact Us</a></li>
</ul>
</div>
</div>
<div class="footer-nav">
<nav class="footer_sub_nav">
<ul class="menu">
<li><a href="http://status.docker.com/">Status</a></li>
<li><a href="https://www.docker.com/legal">Legal</a></li>
<li><a href="https://www.docker.com/company/contact">Contact</a></li>
</ul>
</nav>
</div>
</div>
<div class="bottom_footer">
<div class="footer-copyright col-xs-12 col-md-8">
<p class="copyright">
Copyright © 2013-2021 Docker Inc. All rights reserved. </p>
</div>
<div class="footer_social_nav">
<ul class="nav-social">
<li class="fa fa-twitter"><a href="http://twitter.com/docker">Twitter</a></li>
<li class="fa fa-youtube"><a href="http://www.youtube.com/user/dockerrun">Youtube</a></li>
<li class="fa fa-github"><a href="https://github.com/docker">GitHub</a></li>
<li class="fa fa-linkedin"><a href="https://www.linkedin.com/company/docker">Linkedin</a></li>
<li class="fa fa-facebook"><a href="https://www.facebook.com/docker.run">Facebook</a></li>
<li class="fa fa-slideshare"><a href="https://www.slideshare.net/docker">Slideshare</a></li>
<li class="fa fa-reddit"><a href="https://www.reddit.com/r/docker">Reddit</a></li>
</ul>
</div>
</div>
</div>
</footer>
------MultipartBoundary--NvpcdfSE0hYdBVxxceVt5D0PABCW1HbNo6nTHbjjrJ------