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This article is to share with you about how to install docker in Ubuntu, the editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.

Ubuntu version requirements

Docker can only be installed on 64-bit systems, and the Linux kernel version is at least 3.10 or higher.

Start the installation:

[xinsz@linux:~$ uname-aLinux linux 3.13.0-24-generic # 46-Ubuntu SMP Thu Apr 10 19:08:14 UTC 2014 i686 i686 GNU/Linux

Optional: it is recommended to install the linux-image-extra kernel package, which allows you to use the aufs storage driver. Use the following command to install:

$sudo apt-get update$ sudo apt-get install linux-image-extra-$ (uname-r) updates the apt source

Docker's apt library includes Docker 1.7.1 and later:

Add a new gpg key:

$sudo apt-key adv-keyserver hkp://p80.pool.sks-keyservers.net:80-recv-keys 58118E89F3A912897C070ADBF76221572C52609D

Open the / etc/apt/sources.list.d/docker.list file and, for Ubuntu 14.04 systems, write to it:

Deb https://apt.dockerproject.org/repo ubuntu-trusty main

After the save is closed, update the apt package index:

$sudo apt-get update

If there is an old version to remove:

$sudo apt-get purge lxc-docker

Verify that the apt command is obtained from the correct library:

$sudo apt-cache policy docker-engine installs Docker

After ensuring that the installation prerequisites are complete, you can install Docker by following these steps:

Install Docker

$sudo apt-get install docker-engine

Start the Docker daemon:

$sudo service docker start

Verify that Docker is installed successfully:

$sudo docker run hello-world

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

Update Docker

Use apt-get to update Docker to the latest version:

$sudo apt-get install docker-engine Uninstall

If you uninstall the Docker installation package:

$sudo apt-get purge docker-engine

If you uninstall the Docker package and its dependent packages:

$sudo apt-get autoremove-purge docker-engine

The above command does not delete images, containers, volumes, and other data. If you want to remove these, run the following command:

The above $sudo rm-rf / var/lib/docker is how to install docker in Ubuntu. The editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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