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moby--moby/docs/sources/installation/binaries.rst
Solomon Hykes cf5504eed5 docs: move a sysadmin-focused topic out of the basic usage manual and into installation docs (setting up a user group for non-root access)
docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-01-21 03:43:16 +00:00

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:title: Installation from Binaries
:description: This instruction set is meant for hackers who want to try out Docker on a variety of environments.
:keywords: binaries, installation, docker, documentation, linux
.. _binaries:
Binaries
========
.. include:: install_header.inc
**This instruction set is meant for hackers who want to try out Docker
on a variety of environments.**
Before following these directions, you should really check if a packaged version
of Docker is already available for your distribution. We have packages for many
distributions, and more keep showing up all the time!
Check runtime dependencies
--------------------------
To run properly, docker needs the following software to be installed at runtime:
- GNU Tar version 1.26 or later
- iproute2 version 3.5 or later (build after 2012-05-21), and specifically the "ip" utility
- iptables version 1.4 or later
- The LXC utility scripts (http://lxc.sourceforge.net) version 0.8 or later
- Git version 1.7 or later
- XZ Utils 4.9 or later
Check kernel dependencies
-------------------------
Docker in daemon mode has specific kernel requirements. For details, see
http://docs.docker.io/en/latest/articles/kernel/
Note that Docker also has a client mode, which can run on virtually any linux kernel (it even builds
on OSX!).
Get the docker binary:
----------------------
.. code-block:: bash
wget https://get.docker.io/builds/Linux/x86_64/docker-latest -O docker
chmod +x docker
Run the docker daemon
---------------------
.. code-block:: bash
# start the docker in daemon mode from the directory you unpacked
sudo ./docker -d &
.. _dockergroup:
Giving non-root access
----------------------
The ``docker`` daemon always runs as the root user, and since Docker version
0.5.2, the ``docker`` daemon binds to a Unix socket instead of a TCP port. By
default that Unix socket is owned by the user *root*, and so, by default, you
can access it with ``sudo``.
Starting in version 0.5.3, if you (or your Docker installer) create a
Unix group called *docker* and add users to it, then the ``docker``
daemon will make the ownership of the Unix socket read/writable by the
*docker* group when the daemon starts. The ``docker`` daemon must
always run as the root user, but if you run the ``docker`` client as a user in
the *docker* group then you don't need to add ``sudo`` to all the
client commands.
.. warning:: The *docker* group is root-equivalent.
Upgrades
--------
To upgrade your manual installation of Docker, first kill the docker daemon:
.. code-block:: bash
killall docker
Then follow the regular installation steps.
Run your first container!
-------------------------
.. code-block:: bash
# check your docker version
sudo ./docker version
# run a container and open an interactive shell in the container
sudo ./docker run -i -t ubuntu /bin/bash
Continue with the :ref:`hello_world` example.