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Last pushed: 5 days ago
Short Description
Ubuntu is a Debian-based Linux operating system based on free software.
Full Description

Supported tags and respective Dockerfile links

(s390x/ubuntu build job)

Quick reference

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 s390x/ubuntu:latest tag points to the "latest LTS", since that's the version recommended for general use. The s390x/ubuntu:rolling tag points to the latest release (regardless of LTS status).

Along a similar vein, the s390x/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 }'


Given that it is a minimal install of Ubuntu, this image only includes the C, C.UTF-8, and POSIX locales by default. For most uses requiring a UTF-8 locale, C.UTF-8 is likely sufficient (-e LANG=C.UTF-8 or ENV LANG C.UTF-8).

For uses where that is not sufficient, other locales can be installed/generated via the locales package. PostgreSQL has a good example of doing so, copied below:

RUN apt-get update && apt-get install -y locales && rm -rf /var/lib/apt/lists/* \
    && localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
ENV LANG en_US.utf8



$ docker run s390x/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 s390x/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
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Comments (1)
a year ago

I see that docker/docker#15866 is closed... how does that affect the 'experimental' qualification in the description?