Official Repository

Last pushed: 11 days ago
Short Description
Ubuntu is a Debian-based Linux operating system based on free software.
Full Description

Supported tags and respective Dockerfile links

For more information about this image and its history, please see the relevant manifest file (library/ubuntu). This image is updated via pull requests to the docker-library/official-images GitHub repo.

For detailed information about the virtual/transfer sizes and individual layers of each of the above supported tags, please see the repos/ubuntu/ file in the docker-library/repo-info GitHub repo.

What is Ubuntu?

Ubuntu is a Debian-based Linux operating system, with Unity as its default desktop environment. It is based on free software and named after the Southern African philosophy of ubuntu (literally, "human-ness"), which often is translated as "humanity towards others" or "the belief in a universal bond of sharing that connects all humanity".

Development of Ubuntu is led by UK-based Canonical Ltd., a company owned by South African entrepreneur Mark Shuttleworth. Canonical generates revenue through the sale of technical support and other services related to Ubuntu. The Ubuntu project is publicly committed to the principles of open-source software development; people are encouraged to use free software, study how it works, improve upon it, and distribute it.

What's in this image?

This image is built from official rootfs tarballs provided by Canonical (specifically,

The ubuntu:latest tag points to the "latest LTS", since that's the version recommended for general use.

Along a similar vein, the ubuntu:devel tag is an alias for whichever release the "devel" suite on the mirrors currently points to, as determined by the following one-liner: wget -qO- | awk -F ': ' '$1 == "Codename" { print $2; exit }'



$ docker run ubuntu:16.04 grep -v '^#' /etc/apt/sources.list

deb xenial main restricted
deb-src xenial main restricted

deb xenial-updates main restricted
deb-src xenial-updates main restricted

deb xenial universe
deb-src xenial universe
deb xenial-updates universe
deb-src xenial-updates universe

deb xenial-security main restricted
deb-src xenial-security main restricted
deb xenial-security universe
deb-src xenial-security universe


$ docker run ubuntu:14.04 grep -v '^#' /etc/apt/sources.list

deb trusty main restricted
deb-src trusty main restricted

deb trusty-updates main restricted
deb-src trusty-updates main restricted

deb trusty universe
deb-src trusty universe
deb trusty-updates universe
deb-src trusty-updates universe

deb trusty-security main restricted
deb-src trusty-security main restricted
deb trusty-security universe
deb-src trusty-security universe

Supported Docker versions

This image is officially supported on Docker version 1.12.2.

Support for older versions (down to 1.6) is provided on a best-effort basis.

Please see the Docker installation documentation for details on how to upgrade your Docker daemon.

User Feedback


If you have any problems with or questions about this image, please contact us through a GitHub issue. If the issue is related to a CVE, please check for a cve-tracker issue on the official-images repository first.

You can also reach many of the official image maintainers via the #docker-library IRC channel on Freenode.


You are invited to contribute new features, fixes, or updates, large or small; we are always thrilled to receive pull requests, and do our best to process them as fast as we can.

Before you start to code, we recommend discussing your plans through a GitHub issue, especially for more ambitious contributions. This gives other contributors a chance to point you in the right direction, give you feedback on your design, and help you find out if someone else is working on the same thing.


Documentation for this image is stored in the ubuntu/ directory of the docker-library/docs GitHub repo. Be sure to familiarize yourself with the repository's file before attempting a pull request.

Docker Pull Command

Comments (69)
7 days ago

a month ago

2 months ago

wt is root password for ubuntu:14.04 container ?

3 months ago

@parag4code if yout use the tag wily, so the command : docker pull ubuntu:wily, you will have the cloudimg image of wily because this pull use that Dockfile :

4 months ago

where to find the ubuntu-wily-core-cloudimg-amd64-root.tar.gz file?

4 months ago

Why all ubuntu docker images have a "/core" file? Is this a core dump? Is it necessary?

4 months ago

should your images always be small in size ?, i guess the point of docker images to be light weight?

5 months ago

32 bit are available ?

5 months ago

Is this a server version of Ubuntu?thanks.

5 months ago

the size so big so foo.