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1 | c27ba1cc | Michael Hanselmann | Ganeti quick installation guide |
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2 | c27ba1cc | Michael Hanselmann | =============================== |
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4 | c27ba1cc | Michael Hanselmann | Please note that a more detailed installation procedure is described in |
5 | c27ba1cc | Michael Hanselmann | the :doc:`install`. A glossary of terms can be found in the |
6 | c27ba1cc | Michael Hanselmann | :doc:`glossary`. |
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9 | bd785ecd | Michael Hanselmann | Software Requirements |
10 | c27ba1cc | Michael Hanselmann | --------------------- |
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12 | a8083063 | Iustin Pop | Before installing, please verify that you have the following programs: |
13 | c27ba1cc | Michael Hanselmann | |
14 | c4b2b2e2 | Guido Trotter | - `Xen Hypervisor <http://www.xen.org/>`_, version 3.0 or above, if |
15 | c4b2b2e2 | Guido Trotter | running on Xen |
16 | c4b2b2e2 | Guido Trotter | - `KVM Hypervisor <http://www.linux-kvm.org>`_, version 72 or above, if |
17 | c4b2b2e2 | Guido Trotter | running on KVM. In order to use advanced features, such as live |
18 | c4b2b2e2 | Guido Trotter | migration, virtio, etc, an even newer version is recommended (qemu-kvm |
19 | c4b2b2e2 | Guido Trotter | versions 0.11.X or above have shown good behavior). |
20 | c27ba1cc | Michael Hanselmann | - `DRBD <http://www.drbd.org/>`_, kernel module and userspace utils, |
21 | c27ba1cc | Michael Hanselmann | version 8.0.7 or above |
22 | c27ba1cc | Michael Hanselmann | - `LVM2 <http://sourceware.org/lvm2/>`_ |
23 | c27ba1cc | Michael Hanselmann | - `OpenSSH <http://www.openssh.com/portable.html>`_ |
24 | c27ba1cc | Michael Hanselmann | - `bridge utilities <http://www.linuxfoundation.org/en/Net:Bridge>`_ |
25 | c27ba1cc | Michael Hanselmann | - `iproute2 <http://www.linuxfoundation.org/en/Net:Iproute2>`_ |
26 | c27ba1cc | Michael Hanselmann | - `arping <http://www.skbuff.net/iputils/>`_ (part of iputils) |
27 | 69affe73 | Manuel Franceschini | - `ndisc6 <http://www.remlab.net/ndisc6/>`_ (if using IPv6) |
28 | c27ba1cc | Michael Hanselmann | - `Python <http://www.python.org/>`_, version 2.4 or above, not 3.0 |
29 | c27ba1cc | Michael Hanselmann | - `Python OpenSSL bindings <http://pyopenssl.sourceforge.net/>`_ |
30 | c27ba1cc | Michael Hanselmann | - `simplejson Python module <http://code.google.com/p/simplejson/>`_ |
31 | c27ba1cc | Michael Hanselmann | - `pyparsing Python module <http://pyparsing.wikispaces.com/>`_ |
32 | c27ba1cc | Michael Hanselmann | - `pyinotify Python module <http://trac.dbzteam.org/pyinotify/>`_ |
33 | 2a7c3583 | Michael Hanselmann | - `PycURL Python module <http://pycurl.sourceforge.net/>`_ |
34 | b447ab51 | Luca Bigliardi | - `ctypes Python module |
35 | b447ab51 | Luca Bigliardi | <http://starship.python.net/crew/theller/ctypes/>`_, if running on |
36 | b447ab51 | Luca Bigliardi | python 2.4 (optional, used for node daemon memory locking) |
37 | e90739d6 | Michael Hanselmann | - `socat <http://www.dest-unreach.org/socat/>`_, see :ref:`note |
38 | e90739d6 | Michael Hanselmann | <socat-note>` below |
39 | a40b1fc4 | René Nussbaumer | - `Paramiko <http://www.lag.net/paramiko/>`_, if you want automated SSH |
40 | a40b1fc4 | René Nussbaumer | setup; optional otherwise but manual setup of the nodes required |
41 | c27ba1cc | Michael Hanselmann | |
42 | c27ba1cc | Michael Hanselmann | These programs are supplied as part of most Linux distributions, so |
43 | c27ba1cc | Michael Hanselmann | usually they can be installed via the standard package manager. Also |
44 | c27ba1cc | Michael Hanselmann | many of them will already be installed on a standard machine. On |
45 | c27ba1cc | Michael Hanselmann | Debian/Ubuntu, you can use this command line to install all required |
46 | c27ba1cc | Michael Hanselmann | packages, except for DRBD and Xen:: |
47 | c27ba1cc | Michael Hanselmann | |
48 | c27ba1cc | Michael Hanselmann | $ apt-get install lvm2 ssh bridge-utils iproute iputils-arping \ |
49 | 69affe73 | Manuel Franceschini | ndisc6 python python-pyopenssl openssl \ |
50 | 69affe73 | Manuel Franceschini | python-pyparsing python-simplejson \ |
51 | 69affe73 | Manuel Franceschini | python-pyinotify python-pycurl socat |
52 | c27ba1cc | Michael Hanselmann | |
53 | c27ba1cc | Michael Hanselmann | If you want to build from source, please see doc/devnotes.rst for more |
54 | c27ba1cc | Michael Hanselmann | dependencies. |
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56 | e90739d6 | Michael Hanselmann | .. _socat-note: |
57 | e90739d6 | Michael Hanselmann | .. note:: |
58 | e90739d6 | Michael Hanselmann | Ganeti's import/export functionality uses ``socat`` with OpenSSL for |
59 | e90739d6 | Michael Hanselmann | transferring data between nodes. By default, OpenSSL 0.9.8 and above |
60 | e90739d6 | Michael Hanselmann | employ transparent compression of all data using zlib if supported by |
61 | e90739d6 | Michael Hanselmann | both sides of a connection. In cases where a lot of data is |
62 | e90739d6 | Michael Hanselmann | transferred, this can lead to an increased CPU usage. Additionally, |
63 | e90739d6 | Michael Hanselmann | Ganeti already compresses all data using ``gzip`` where it makes sense |
64 | e90739d6 | Michael Hanselmann | (for inter-cluster instance moves). |
65 | e90739d6 | Michael Hanselmann | |
66 | e90739d6 | Michael Hanselmann | To remedey this situation, patches implementing a new ``socat`` option |
67 | e90739d6 | Michael Hanselmann | for disabling OpenSSL compression have been contributed and will |
68 | e90739d6 | Michael Hanselmann | likely be included in the next feature release. Until then, users or |
69 | e90739d6 | Michael Hanselmann | distributions need to apply the patches on their own. |
70 | e90739d6 | Michael Hanselmann | |
71 | e90739d6 | Michael Hanselmann | Ganeti will use the option if it's detected by the ``configure`` |
72 | e90739d6 | Michael Hanselmann | script; auto-detection can be disabled by explicitely passing |
73 | e90739d6 | Michael Hanselmann | ``--enable-socat-compress`` (use the option to disable compression) or |
74 | e90739d6 | Michael Hanselmann | ``--disable-socat-compress`` (don't use the option). |
75 | e90739d6 | Michael Hanselmann | |
76 | e90739d6 | Michael Hanselmann | The patches and more information can be found on |
77 | e90739d6 | Michael Hanselmann | http://www.dest-unreach.org/socat/contrib/socat-opensslcompress.html. |
78 | e90739d6 | Michael Hanselmann | |
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80 | bd785ecd | Michael Hanselmann | Installation of the software |
81 | c27ba1cc | Michael Hanselmann | ---------------------------- |
82 | c27ba1cc | Michael Hanselmann | |
83 | c27ba1cc | Michael Hanselmann | To install, simply run the following command:: |
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85 | c27ba1cc | Michael Hanselmann | ./configure --localstatedir=/var --sysconfdir=/etc && \ |
86 | c27ba1cc | Michael Hanselmann | make && \ |
87 | c27ba1cc | Michael Hanselmann | make install |
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89 | c27ba1cc | Michael Hanselmann | This will install the software under ``/usr/local``. You then need to |
90 | c27ba1cc | Michael Hanselmann | copy ``doc/examples/ganeti.initd`` to ``/etc/init.d/ganeti`` and |
91 | c27ba1cc | Michael Hanselmann | integrate it into your boot sequence (``chkconfig``, ``update-rc.d``, |
92 | c27ba1cc | Michael Hanselmann | etc.). |
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94 | bd785ecd | Michael Hanselmann | |
95 | a8083063 | Iustin Pop | Cluster initialisation |
96 | c27ba1cc | Michael Hanselmann | ---------------------- |
97 | a8083063 | Iustin Pop | |
98 | c27ba1cc | Michael Hanselmann | Before initialising the cluster, on each node you need to create the |
99 | c27ba1cc | Michael Hanselmann | following directories: |
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101 | c27ba1cc | Michael Hanselmann | - ``/etc/ganeti`` |
102 | c27ba1cc | Michael Hanselmann | - ``/var/lib/ganeti`` |
103 | c27ba1cc | Michael Hanselmann | - ``/var/log/ganeti`` |
104 | c27ba1cc | Michael Hanselmann | - ``/srv/ganeti`` |
105 | c27ba1cc | Michael Hanselmann | - ``/srv/ganeti/os`` |
106 | c27ba1cc | Michael Hanselmann | - ``/srv/ganeti/export`` |
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108 | a8083063 | Iustin Pop | After this, use ``gnt-cluster init``. |
109 | c27ba1cc | Michael Hanselmann | |
110 | c27ba1cc | Michael Hanselmann | .. vim: set textwidth=72 syntax=rst : |
111 | c27ba1cc | Michael Hanselmann | .. Local Variables: |
112 | c27ba1cc | Michael Hanselmann | .. mode: rst |
113 | c27ba1cc | Michael Hanselmann | .. fill-column: 72 |
114 | c27ba1cc | Michael Hanselmann | .. End: |