1 Ganeti quick installation guide
2 ===============================
4 Please note that a more detailed installation procedure is described in
5 the :doc:`install`. Refer to it if you are setting up Ganeti the first time.
6 This quick installation guide is mainly meant as reference for experienced
7 users. A glossary of terms can be found in the :doc:`glossary`.
13 .. highlight:: shell-example
15 Before installing, please verify that you have the following programs:
17 - `Xen Hypervisor <http://www.xen.org/>`_, version 3.0 or above, if
19 - `KVM Hypervisor <http://www.linux-kvm.org>`_, version 72 or above, if
20 running on KVM. In order to use advanced features, such as live
21 migration, virtio, etc, an even newer version is recommended (qemu-kvm
22 versions 0.11.X and above have shown good behavior).
23 - `DRBD <http://www.drbd.org/>`_, kernel module and userspace utils,
24 version 8.0.7 or above; note that Ganeti doesn't yet support version 8.4
25 - `RBD <http://ceph.newdream.net/>`_, kernel modules
26 (``rbd.ko``/``libceph.ko``) and userspace utils (``ceph-common``)
27 - `LVM2 <http://sourceware.org/lvm2/>`_
28 - `OpenSSH <http://www.openssh.com/portable.html>`_
29 - `bridge utilities <http://www.linuxfoundation.org/en/Net:Bridge>`_
30 - `iproute2 <http://www.linuxfoundation.org/en/Net:Iproute2>`_
31 - `arping <http://www.skbuff.net/iputils/>`_ (part of iputils)
32 - `ndisc6 <http://www.remlab.net/ndisc6/>`_ (if using IPv6)
33 - `Python <http://www.python.org/>`_, version 2.6 or above, not 3.0
34 - `Python OpenSSL bindings <http://pyopenssl.sourceforge.net/>`_
35 - `simplejson Python module <http://code.google.com/p/simplejson/>`_
36 - `pyparsing Python module <http://pyparsing.wikispaces.com/>`_, version
38 - `pyinotify Python module <https://github.com/seb-m/pyinotify>`_
39 - `PycURL Python module <http://pycurl.sourceforge.net/>`_
40 - `socat <http://www.dest-unreach.org/socat/>`_, see :ref:`note
42 - `Paramiko <http://www.lag.net/paramiko/>`_, if you want to use
44 - `psutil Python module <https://github.com/giampaolo/psutil>`_,
45 optional python package for supporting CPU pinning under KVM
46 - `fdsend Python module <https://gitorious.org/python-fdsend>`_,
47 optional Python package for supporting NIC hotplugging under KVM
48 - `qemu-img <http://qemu.org/>`_, if you want to use ``ovfconverter``
49 - `fping <http://fping.sourceforge.net/>`_
50 - `Python IP address manipulation library
51 <http://code.google.com/p/ipaddr-py/>`_
52 - `Bitarray Python library <http://pypi.python.org/pypi/bitarray/>`_
53 - `GNU Make <http://www.gnu.org/software/make/>`_
54 - `GNU M4 <http://www.gnu.org/software/m4/>`_
56 These programs are supplied as part of most Linux distributions, so
57 usually they can be installed via the standard package manager. Also
58 many of them will already be installed on a standard machine. On
59 Debian/Ubuntu, you can use this command line to install all required
60 packages, except for RBD, DRBD and Xen::
62 $ apt-get install lvm2 ssh bridge-utils iproute iputils-arping make m4 \
63 ndisc6 python python-openssl openssl \
64 python-pyparsing python-simplejson python-bitarray \
65 python-pyinotify python-pycurl python-ipaddr socat fping
67 Note that the previous instructions don't install optional packages.
68 To install the optional package, run the following line.::
70 $ apt-get install python-paramiko python-psutil qemu-utils
72 If some of the python packages are not available in your system,
73 you can try installing them using ``easy_install`` command.
76 $ apt-get install python-setuptools python-dev
77 $ cd / && easy_install \
83 On Fedora to install all required packages except RBD, DRBD and Xen::
85 $ yum install openssh openssh-clients bridge-utils iproute ndisc6 make \
86 pyOpenSSL pyparsing python-simplejson python-inotify \
87 python-lxm socat fping python-bitarray python-ipaddr
89 For optional packages use the command::
91 $ yum install python-paramiko python-psutil qemu-img
93 If you want to build from source, please see doc/devnotes.rst for more
98 Ganeti's import/export functionality uses ``socat`` with OpenSSL for
99 transferring data between nodes. By default, OpenSSL 0.9.8 and above
100 employ transparent compression of all data using zlib if supported by
101 both sides of a connection. In cases where a lot of data is
102 transferred, this can lead to an increased CPU usage. Additionally,
103 Ganeti already compresses all data using ``gzip`` where it makes sense
104 (for inter-cluster instance moves).
106 To remedey this situation, patches implementing a new ``socat`` option
107 for disabling OpenSSL compression have been contributed and will
108 likely be included in the next feature release. Until then, users or
109 distributions need to apply the patches on their own.
111 Ganeti will use the option if it's detected by the ``configure``
112 script; auto-detection can be disabled by explicitly passing
113 ``--enable-socat-compress`` (use the option to disable compression) or
114 ``--disable-socat-compress`` (don't use the option).
116 The patches and more information can be found on
117 http://www.dest-unreach.org/socat/contrib/socat-opensslcompress.html.
122 Starting with Ganeti 2.7, the Haskell GHC compiler and a few base
123 libraries are required in order to build Ganeti (but not to run and
124 deploy Ganeti on production machines). More specifically:
126 - `GHC <http://www.haskell.org/ghc/>`_ version 7 or higher
127 - or even better, `The Haskell Platform
128 <http://hackage.haskell.org/platform/>`_ which gives you a simple way
130 - `json <http://hackage.haskell.org/package/json>`_, a JSON library
131 - `network <http://hackage.haskell.org/package/network>`_, a basic
133 - `parallel <http://hackage.haskell.org/package/parallel>`_, a parallel
134 programming library (note: tested with up to version 3.x)
135 - `bytestring <http://hackage.haskell.org/package/bytestring>`_ and
136 `utf8-string <http://hackage.haskell.org/package/utf8-string>`_
137 libraries; these usually come with the GHC compiler
138 - `text <http://hackage.haskell.org/package/text>`_
139 - `deepseq <http://hackage.haskell.org/package/deepseq>`_,
140 usually comes with the GHC compiler
141 - `curl <http://hackage.haskell.org/package/curl>`_, tested with
142 versions 1.3.4 and above
143 - `hslogger <http://software.complete.org/hslogger>`_, version 1.1 and
145 - `hinotify <http://hackage.haskell.org/package/hinotify>`_, tested with
147 - `Crypto <http://hackage.haskell.org/package/Crypto>`_, tested with
149 - `regex-pcre <http://hackage.haskell.org/package/regex-pcre>`_,
150 bindings for the ``pcre`` library
151 - `attoparsec <http://hackage.haskell.org/package/attoparsec>`_,
152 version 0.10 and above
153 - `vector <http://hackage.haskell.org/package/vector>`_
154 - `process <http://hackage.haskell.org/package/process>`_, version 1.0.1.1 and
155 above; usually comes with the GHC compiler
157 <http://hackage.haskell.org/package/base64-bytestring>`_,
158 version 1.0.0.0 and above
159 - `lifted-base <http://hackage.haskell.org/package/lifted-base>`_,
160 version 0.1.1 and above.
161 - `lens <http://hackage.haskell.org/package/lens>`_,
162 version 3.0 and above.
164 Some of these are also available as package in Debian/Ubuntu::
166 $ apt-get install ghc libghc-json-dev libghc-network-dev \
167 libghc-parallel-dev \
168 libghc-utf8-string-dev libghc-curl-dev \
169 libghc-hslogger-dev \
170 libghc-crypto-dev libghc-text-dev \
171 libghc-hinotify-dev libghc-regex-pcre-dev \
173 libghc-attoparsec-dev libghc-vector-dev \
176 Debian Jessie also includes recent enough versions of these libraries::
178 $ apt-get install libghc-base64-bytestring-dev \
180 libghc-lifted-base-dev
182 In Fedora, some of them are available via packages as well::
184 $ yum install ghc ghc-json-devel ghc-network-devel \
185 ghc-parallel-devel ghc-deepseq-devel \
186 ghc-hslogger-devel ghc-text-devel \
189 The most recent Fedora doesn't provide ``crypto``, ``inotify``. So these
190 need to be installed using ``cabal``.
192 If using a distribution which does not provide these libraries, first
193 install the Haskell platform. You can also install ``cabal`` manually::
195 $ apt-get install cabal-install
198 Then install the additional native libraries::
200 $ apt-get install libpcre3-dev libcurl4-openssl-dev
202 And finally the libraries required for building the packages (only the
203 ones not available in your distribution packages) via ``cabal``::
205 $ cabal install json network parallel utf8-string curl hslogger \
206 Crypto text hinotify==0.3.2 regex-pcre \
207 attoparsec vector base64-bytestring \
208 lifted-base==0.2.0.3 lens==3.10
210 (The specified versions are suitable for Debian Wheezy, for other
211 distributions different versions might be needed.)
213 .. _cabal-order-note:
215 When installing additional libraries using ``cabal``, be sure to first
216 install all the required libraries available in your distribution and
217 only then install the rest using ``cabal``.
218 Otherwise cabal might install different versions of libraries that are
219 available in your distribution, causing conflicts during the
221 This applies in particular when installing libraries for the optional
224 Haskell optional features
225 ~~~~~~~~~~~~~~~~~~~~~~~~~
227 Optionally, more functionality can be enabled if your build machine has
228 a few more Haskell libraries enabled: the ``ganeti-confd`` daemon
229 (``--enable-confd``), the monitoring daemon (``--enable-monitoring``) and
230 the meta-data daemon (``--enable-metadata``).
231 The extra dependency for these is:
233 - `snap-server` <http://hackage.haskell.org/package/snap-server>`_, version
236 This library is available in Debian Wheezy or later, so you can use
239 $ apt-get install libghc-snap-server-dev
243 $ cabal install snap-server
249 If one of the cabal packages fails to install due to unfulfilled
250 dependencies, you can try enabling symlinks in ``~/.cabal/config``.
252 Make sure that your ``~/.cabal/bin`` directory (or whatever else
253 is defined as ``bindir``) is in your ``PATH``.
255 Installation of the software
256 ----------------------------
258 To install, simply run the following command::
260 $ ./configure --localstatedir=/var --sysconfdir=/etc && \
264 This will install the software under ``/usr/local``. You then need to
265 copy ``doc/examples/ganeti.initd`` to ``/etc/init.d/ganeti`` and
266 integrate it into your boot sequence (``chkconfig``, ``update-rc.d``,
267 etc.). Also, Ganeti uses symbolic links in the sysconfdir to determine,
268 which of potentially many installed versions currently is used. If these
269 symbolic links should be added by the install as well, add the
270 option ``--enable-symlinks`` to the ``configure`` call.
273 Cluster initialisation
274 ----------------------
276 Before initialising the cluster, on each node you need to create the
277 following directories:
280 - ``/var/lib/ganeti``
281 - ``/var/log/ganeti``
284 - ``/srv/ganeti/export``
286 After this, use ``gnt-cluster init``.
288 .. vim: set textwidth=72 syntax=rst :