Synnefo » snf-ganeti

Ganeti quick installation guide

===============================

Please note that a more detailed installation procedure is described in

the :doc:`install`. A glossary of terms can be found in the

:doc:`glossary`.

Software Requirements

---------------------

Before installing, please verify that you have the following programs:

- `Xen Hypervisor <http://www.xen.org/>`_, version 3.0 or above, if

  running on Xen

- `KVM Hypervisor <http://www.linux-kvm.org>`_, version 72 or above, if

  running on KVM. In order to use advanced features, such as live

  migration, virtio, etc, an even newer version is recommended (qemu-kvm

  versions 0.11.X or above have shown good behavior).

- `DRBD <http://www.drbd.org/>`_, kernel module and userspace utils,

  version 8.0.7 or above

- `LVM2 <http://sourceware.org/lvm2/>`_

- `OpenSSL <http://www.openssl.org/>`_

- `OpenSSH <http://www.openssh.com/portable.html>`_

- `bridge utilities <http://www.linuxfoundation.org/en/Net:Bridge>`_

- `iproute2 <http://www.linuxfoundation.org/en/Net:Iproute2>`_

- `arping <http://www.skbuff.net/iputils/>`_ (part of iputils)

- `Python <http://www.python.org/>`_, version 2.4 or above, not 3.0

- `Python OpenSSL bindings <http://pyopenssl.sourceforge.net/>`_

- `simplejson Python module <http://code.google.com/p/simplejson/>`_

- `pyparsing Python module <http://pyparsing.wikispaces.com/>`_

- `pyinotify Python module <http://trac.dbzteam.org/pyinotify/>`_

- `ctypes Python module

  <http://starship.python.net/crew/theller/ctypes/>`_, if running on

  python 2.4 (optional, used for node daemon memory locking)

- `socat <http://www.dest-unreach.org/socat/>`_

These programs are supplied as part of most Linux distributions, so

usually they can be installed via the standard package manager. Also

many of them will already be installed on a standard machine. On

Debian/Ubuntu, you can use this command line to install all required

packages, except for DRBD and Xen::

  $ apt-get install lvm2 ssh bridge-utils iproute iputils-arping \

                    python python-pyopenssl openssl python-pyparsing \

                    python-simplejson python-pyinotify socat

If you want to build from source, please see doc/devnotes.rst for more

dependencies.

Installation of the software

----------------------------

To install, simply run the following command::

  ./configure --localstatedir=/var --sysconfdir=/etc && \

  make && \

  make install

This will install the software under ``/usr/local``. You then need to

copy ``doc/examples/ganeti.initd`` to ``/etc/init.d/ganeti`` and

integrate it into your boot sequence (``chkconfig``, ``update-rc.d``,

etc.).

Cluster initialisation

----------------------

Before initialising the cluster, on each node you need to create the

following directories:

- ``/etc/ganeti``

- ``/var/lib/ganeti``

- ``/var/log/ganeti``

- ``/srv/ganeti``

- ``/srv/ganeti/os``

- ``/srv/ganeti/export``

After this, use ``gnt-cluster init``.

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