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 - `cabal-install <http://hackage.haskell.org/package/json>`_ and
131 `Cabal <http://hackage.haskell.org/package/json>`_, the Common Architecture
132 for Building Haskell Applications and Libraries (executable and library)
133 - `json <http://hackage.haskell.org/package/json>`_, a JSON library
134 - `network <http://hackage.haskell.org/package/network>`_, a basic
136 - `parallel <http://hackage.haskell.org/package/parallel>`_, a parallel
137 programming library (note: tested with up to version 3.x)
138 - `bytestring <http://hackage.haskell.org/package/bytestring>`_ and
139 `utf8-string <http://hackage.haskell.org/package/utf8-string>`_
140 libraries; these usually come with the GHC compiler
141 - `text <http://hackage.haskell.org/package/text>`_
142 - `deepseq <http://hackage.haskell.org/package/deepseq>`_,
143 usually comes with the GHC compiler
144 - `curl <http://hackage.haskell.org/package/curl>`_, tested with
145 versions 1.3.4 and above
146 - `hslogger <http://software.complete.org/hslogger>`_, version 1.1 and
148 - `hinotify <http://hackage.haskell.org/package/hinotify>`_, tested with
150 - `Crypto <http://hackage.haskell.org/package/Crypto>`_, tested with
152 - `regex-pcre <http://hackage.haskell.org/package/regex-pcre>`_,
153 bindings for the ``pcre`` library
154 - `attoparsec <http://hackage.haskell.org/package/attoparsec>`_,
155 version 0.10 and above
156 - `vector <http://hackage.haskell.org/package/vector>`_
157 - `process <http://hackage.haskell.org/package/process>`_, version 1.0.1.1 and
158 above; usually comes with the GHC compiler
160 <http://hackage.haskell.org/package/base64-bytestring>`_,
161 version 1.0.0.0 and above
162 - `lifted-base <http://hackage.haskell.org/package/lifted-base>`_,
163 version 0.1.1 and above.
164 - `lens <http://hackage.haskell.org/package/lens>`_,
165 version 3.10 and above.
167 Some of these are also available as package in Debian/Ubuntu::
169 $ apt-get install ghc cabal-install libghc-cabal-dev \
170 libghc-json-dev libghc-network-dev \
171 libghc-parallel-dev \
172 libghc-utf8-string-dev libghc-curl-dev \
173 libghc-hslogger-dev \
174 libghc-crypto-dev libghc-text-dev \
175 libghc-hinotify-dev libghc-regex-pcre-dev \
177 libghc-attoparsec-dev libghc-vector-dev \
180 Debian Jessie also includes recent enough versions of these libraries::
182 $ apt-get install libghc-base64-bytestring-dev \
184 libghc-lifted-base-dev
186 In Fedora, some of them are available via packages as well::
188 $ yum install ghc ghc-json-devel ghc-network-devel \
189 ghc-parallel-devel ghc-deepseq-devel \
190 ghc-hslogger-devel ghc-text-devel \
193 The most recent Fedora doesn't provide ``crypto``, ``inotify``. So these
194 need to be installed using ``cabal``.
196 If using a distribution which does not provide these libraries, first
197 install the Haskell platform. Then run::
201 Then install the additional native libraries::
203 $ apt-get install libpcre3-dev libcurl4-openssl-dev
205 And finally the libraries required for building the packages via ``cabal``
206 (it will automatically pick only those that are not already installed via your
207 distribution packages)::
209 $ cabal install --only-dependencies cabal/ganeti.template.cabal
211 Haskell optional features
212 ~~~~~~~~~~~~~~~~~~~~~~~~~
214 Optionally, more functionality can be enabled if your build machine has
215 a few more Haskell libraries enabled: the ``ganeti-confd`` daemon
216 (``--enable-confd``), the monitoring daemon (``--enable-monitoring``) and
217 the meta-data daemon (``--enable-metadata``).
218 The extra dependencies for these are:
220 - `snap-server` <http://hackage.haskell.org/package/snap-server>`_, version
223 <http://hackage.haskell.org/package/case-insensitive>`_, version
224 0.4.0.1 and above (it's also a dependency of ``snap-server``).
225 - `PSQueue <http://hackage.haskell.org/package/PSQueue>`_,
226 version 1.0 and above.
228 These libraries are available in Debian Wheezy or later, so you can use
231 $ apt-get install libghc-snap-server-dev libghc-psqueue-dev
235 $ cabal install --only-dependencies cabal/ganeti.template.cabal \
236 --flags="confd mond metad"
242 Make sure that your ``~/.cabal/bin`` directory (or whatever else
243 is defined as ``bindir``) is in your ``PATH``.
245 Installation of the software
246 ----------------------------
248 To install, simply run the following command::
250 $ ./configure --localstatedir=/var --sysconfdir=/etc && \
254 This will install the software under ``/usr/local``. You then need to
255 copy ``doc/examples/ganeti.initd`` to ``/etc/init.d/ganeti`` and
256 integrate it into your boot sequence (``chkconfig``, ``update-rc.d``,
257 etc.). Also, Ganeti uses symbolic links in the sysconfdir to determine,
258 which of potentially many installed versions currently is used. If these
259 symbolic links should be added by the install as well, add the
260 option ``--enable-symlinks`` to the ``configure`` call.
263 Cluster initialisation
264 ----------------------
266 Before initialising the cluster, on each node you need to create the
267 following directories:
270 - ``/var/lib/ganeti``
271 - ``/var/log/ganeti``
274 - ``/srv/ganeti/export``
276 After this, use ``gnt-cluster init``.
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