mirror of https://github.com/docker/docs.git
336 lines
11 KiB
Markdown
336 lines
11 KiB
Markdown
---
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description: Instructions for installing Docker Engine - Community on Ubuntu
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keywords: requirements, apt, installation, ubuntu, install, uninstall, upgrade, update
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redirect_from:
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- /engine/installation/ubuntulinux/
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- /installation/ubuntulinux/
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- /engine/installation/linux/ubuntulinux/
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- /engine/installation/linux/docker-ce/ubuntu/
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- /install/linux/ubuntu/
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- /engine/installation/linux/ubuntu/
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title: Get Docker Engine - Community for Ubuntu
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toc_max: 4
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---
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To get started with Docker Engine - Community on Ubuntu, make sure you
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[meet the prerequisites](#prerequisites), then
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[install Docker](#install-docker-engine---community-1).
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## Prerequisites
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### Docker EE customers
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To install Docker Enterprise Edition (Docker EE), go to
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[Get Docker EE for Ubuntu](/install/linux/docker-ee/ubuntu.md)
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**instead of this topic**.
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To learn more about Docker EE, see
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[Docker Enterprise Edition](https://www.docker.com/enterprise-edition/){: target="_blank" class="_" }.
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### OS requirements
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To install Docker Engine - Community, you need the 64-bit version of one of these Ubuntu
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versions:
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- Eoan 19.10
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- Bionic 18.04 (LTS)
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- Xenial 16.04 (LTS)
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Docker Engine - Community is supported on `x86_64` (or `amd64`), `armhf`, `arm64`, `s390x`
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(IBM Z), and `ppc64le` (IBM Power) architectures.
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### Uninstall old versions
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Older versions of Docker were called `docker`, `docker.io`, or `docker-engine`.
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If these are installed, uninstall them:
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```bash
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$ sudo apt-get remove docker docker-engine docker.io containerd runc
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```
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It's OK if `apt-get` reports that none of these packages are installed.
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The contents of `/var/lib/docker/`, including images, containers, volumes, and
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networks, are preserved. The Docker Engine - Community package is now called `docker-ce`.
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### Supported storage drivers
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Docker Engine - Community on Ubuntu supports `overlay2`, `aufs` and `btrfs` storage drivers.
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> **Note**: In Docker Engine - Enterprise, `btrfs` is only supported on SLES. See the documentation on
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> [btrfs](/engine/userguide/storagedriver/btrfs-driver.md) for more details.
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For new installations on version 4 and higher of the Linux kernel, `overlay2`
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is supported and preferred over `aufs`. Docker Engine - Community uses the `overlay2`
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storage driver by default. If you need to use `aufs` instead, you need to
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configure it manually. See [aufs](/engine/userguide/storagedriver/aufs-driver.md)
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## Install Docker Engine - Community
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You can install Docker Engine - Community in different ways, depending on your needs:
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- Most users
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[set up Docker's repositories](#install-using-the-repository) and install
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from them, for ease of installation and upgrade tasks. This is the
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recommended approach.
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- Some users download the DEB package and
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[install it manually](#install-from-a-package) and manage
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upgrades completely manually. This is useful in situations such as installing
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Docker on air-gapped systems with no access to the internet.
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- In testing and development environments, some users choose to use automated
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[convenience scripts](#install-using-the-convenience-script) to install Docker.
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### Install using the repository
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Before you install Docker Engine - Community for the first time on a new host machine, you need
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to set up the Docker repository. Afterward, you can install and update Docker
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from the repository.
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#### Set up the repository
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{% assign download-url-base = "https://download.docker.com/linux/ubuntu" %}
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1. Update the `apt` package index:
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```bash
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$ sudo apt-get update
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```
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2. Install packages to allow `apt` to use a repository over HTTPS:
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```bash
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$ sudo apt-get install \
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apt-transport-https \
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ca-certificates \
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curl \
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gnupg-agent \
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software-properties-common
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```
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3. Add Docker's official GPG key:
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```bash
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$ curl -fsSL {{ download-url-base }}/gpg | sudo apt-key add -
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```
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Verify that you now have the key with the fingerprint
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`9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88`, by searching for the
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last 8 characters of the fingerprint.
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```bash
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$ sudo apt-key fingerprint 0EBFCD88
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pub rsa4096 2017-02-22 [SCEA]
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9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88
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uid [ unknown] Docker Release (CE deb) <docker@docker.com>
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sub rsa4096 2017-02-22 [S]
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```
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4. Use the following command to set up the **stable** repository. To add the
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**nightly** or **test** repository, add the word `nightly` or `test` (or both)
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after the word `stable` in the commands below. [Learn about **nightly** and **test** channels](/install/index.md).
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> **Note**: The `lsb_release -cs` sub-command below returns the name of your
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> Ubuntu distribution, such as `xenial`. Sometimes, in a distribution
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> like Linux Mint, you might need to change `$(lsb_release -cs)`
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> to your parent Ubuntu distribution. For example, if you are using
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> `Linux Mint Tessa`, you could use `bionic`. Docker does not offer any guarantees on untested
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> and unsupported Ubuntu distributions.
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<ul class="nav nav-tabs">
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<li class="active"><a data-toggle="tab" data-target="#x86_64_repo">x86_64 / amd64</a></li>
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<li><a data-toggle="tab" data-target="#armhf_repo">armhf</a></li>
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<li><a data-toggle="tab" data-target="#arm64_repo">arm64</a></li>
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<li><a data-toggle="tab" data-target="#ppc64le_repo">ppc64le (IBM Power)</a></li>
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<li><a data-toggle="tab" data-target="#s390x_repo">s390x (IBM Z)</a></li>
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</ul>
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<div class="tab-content">
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<div id="x86_64_repo" class="tab-pane fade in active" markdown="1">
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```bash
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$ sudo add-apt-repository \
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"deb [arch=amd64] {{ download-url-base }} \
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$(lsb_release -cs) \
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stable"
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```
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</div>
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<div id="armhf_repo" class="tab-pane fade" markdown="1">
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```bash
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$ sudo add-apt-repository \
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"deb [arch=armhf] {{ download-url-base }} \
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$(lsb_release -cs) \
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stable"
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```
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</div>
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<div id="arm64_repo" class="tab-pane fade" markdown="1">
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```bash
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$ sudo add-apt-repository \
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"deb [arch=arm64] {{ download-url-base }} \
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$(lsb_release -cs) \
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stable"
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```
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</div>
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<div id="ppc64le_repo" class="tab-pane fade" markdown="1">
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```bash
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$ sudo add-apt-repository \
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"deb [arch=ppc64el] {{ download-url-base }} \
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$(lsb_release -cs) \
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stable"
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```
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</div>
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<div id="s390x_repo" class="tab-pane fade" markdown="1">
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```bash
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$ sudo add-apt-repository \
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"deb [arch=s390x] {{ download-url-base }} \
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$(lsb_release -cs) \
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stable"
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```
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</div>
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</div> <!-- tab-content -->
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#### Install Docker Engine - Community
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1. Update the `apt` package index.
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```bash
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$ sudo apt-get update
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```
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2. Install the _latest version_ of Docker Engine - Community and containerd, or go to the next step to install a specific version:
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```bash
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$ sudo apt-get install docker-ce docker-ce-cli containerd.io
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```
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> Got multiple Docker repositories?
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>
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> If you have multiple Docker repositories enabled, installing
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> or updating without specifying a version in the `apt-get install` or
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> `apt-get update` command always installs the highest possible version,
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> which may not be appropriate for your stability needs.
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3. To install a _specific version_ of Docker Engine - Community, list the available versions in the repo, then select and install:
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a. List the versions available in your repo:
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```bash
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$ apt-cache madison docker-ce
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docker-ce | 5:18.09.1~3-0~ubuntu-xenial | {{ download-url-base }} xenial/stable amd64 Packages
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docker-ce | 5:18.09.0~3-0~ubuntu-xenial | {{ download-url-base }} xenial/stable amd64 Packages
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docker-ce | 18.06.1~ce~3-0~ubuntu | {{ download-url-base }} xenial/stable amd64 Packages
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docker-ce | 18.06.0~ce~3-0~ubuntu | {{ download-url-base }} xenial/stable amd64 Packages
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...
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```
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b. Install a specific version using the version string from the second column,
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for example, `5:18.09.1~3-0~ubuntu-xenial`.
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```bash
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$ sudo apt-get install docker-ce=<VERSION_STRING> docker-ce-cli=<VERSION_STRING> containerd.io
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```
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4. Verify that Docker Engine - Community is installed correctly by running the `hello-world`
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image.
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```bash
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$ sudo docker run hello-world
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```
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This command downloads a test image and runs it in a container. When the
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container runs, it prints an informational message and exits.
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Docker Engine - Community is installed and running. The `docker` group is created but no users
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are added to it. You need to use `sudo` to run Docker commands.
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Continue to [Linux postinstall](/install/linux/linux-postinstall.md) to allow
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non-privileged users to run Docker commands and for other optional configuration
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steps.
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#### Upgrade Docker Engine - Community
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To upgrade Docker Engine - Community, first run `sudo apt-get update`, then follow the
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[installation instructions](#install-docker-ce), choosing the new version you want
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to install.
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### Install from a package
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If you cannot use Docker's repository to install Docker Engine - Community, you can download the
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`.deb` file for your release and install it manually. You need to download
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a new file each time you want to upgrade Docker.
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1. Go to [`{{ download-url-base }}/dists/`]({{ download-url-base }}/dists/){: target="_blank" class="_" },
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choose your Ubuntu version, browse to `pool/stable/`, choose `amd64`,
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`armhf`, `arm64`, `ppc64el`, or `s390x`, and download the `.deb` file for the
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Docker Engine - Community version you want to install.
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> **Note**: To install a **nightly** package, change the word
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> `stable` in the URL to `nightly`.
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> [Learn about **nightly** and **test** channels](/install/index.md).
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2. Install Docker Engine - Community, changing the path below to the path where you downloaded
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the Docker package.
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```bash
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$ sudo dpkg -i /path/to/package.deb
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```
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The Docker daemon starts automatically.
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3. Verify that Docker Engine - Community is installed correctly by running the `hello-world`
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image.
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```bash
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$ sudo docker run hello-world
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```
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This command downloads a test image and runs it in a container. When the
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container runs, it prints an informational message and exits.
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Docker Engine - Community is installed and running. The `docker` group is created but no users
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are added to it. You need to use `sudo` to run Docker commands.
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Continue to [Post-installation steps for Linux](/install/linux/linux-postinstall.md)
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to allow non-privileged users to run Docker commands and for other optional
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configuration steps.
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#### Upgrade Docker Engine - Community
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To upgrade Docker Engine - Community, download the newer package file and repeat the
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[installation procedure](#install-from-a-package), pointing to the new file.
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{% include install-script.md %}
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## Uninstall Docker Engine - Community
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1. Uninstall the Docker Engine - Community package:
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```bash
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$ sudo apt-get purge docker-ce
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```
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2. Images, containers, volumes, or customized configuration files on your host
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are not automatically removed. To delete all images, containers, and
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volumes:
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```bash
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$ sudo rm -rf /var/lib/docker
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```
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You must delete any edited configuration files manually.
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## Next steps
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- Continue to [Post-installation steps for Linux](/install/linux/linux-postinstall.md)
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- Continue with the [User Guide](/get-started/index.md).
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