Revision a7a19281 docs/installing.sgml

b/docs/installing.sgml
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        <emphasis role="strong">Mandatory:</emphasis> While Ganeti is
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        developed with the ability to modularly run on different
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        virtualization environments in mind the only one currently
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        useable on a live system is Xen.
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        useable on a live system is <ulink
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        url="http://xen.xensource.com/">Xen</ulink>.
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      </para>
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      <para>
......
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      <title>Installing DRBD</title>
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      <para>
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        Recommended: DRBD is required if you want to use the high
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        availability (HA) features of Ganeti, but optional if you
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        don't require HA or only run Ganeti on single-node
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        clusters. You can upgrade a non-HA cluster to an HA one later,
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        but you might need to export and reimport all your instances
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        to take advantage of the new features.
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        Recommended: <ulink url="http://www.drbd.org/">DRBD</ulink>
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        is required if you want to use the high availability (HA)
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        features of Ganeti, but optional if you don't require HA or
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        only run Ganeti on single-node clusters. You can upgrade a
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        non-HA cluster to an HA one later, but you might need to
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        export and reimport all your instances to take advantage of
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        the new features.
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      </para>
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      <para>
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    </sect2>
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    <sect2>
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      <title>Other required software</title>
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      <para>Besides Xen and DRBD, you will need to install the
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      following:</para>
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      <itemizedlist>
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        <listitem>
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          <simpara><ulink url="http://sourceware.org/lvm2/">LVM
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          version 2</ulink></simpara>
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        </listitem>
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        <listitem>
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          <simpara><ulink
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          url="http://www.openssl.org/">OpenSSL</ulink></simpara>
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        </listitem>
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        <listitem>
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          <simpara><ulink
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          url="http://www.openssh.com/portable.html">OpenSSH</ulink></simpara>
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        </listitem>
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        <listitem>
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          <simpara><ulink url="http://bridge.sourceforge.net/">Bridge
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          utilities</ulink></simpara>
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        </listitem>
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        <listitem>
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          <simpara><ulink
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          url="http://fping.sourceforge.net/">fping</ulink></simpara>
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        </listitem>
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        <listitem>
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          <simpara><ulink
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          url="http://developer.osdl.org/dev/iproute2">iproute2</ulink></simpara>
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        </listitem>
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        <listitem>
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          <simpara><ulink
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          url="ftp://ftp.inr.ac.ru/ip-routing/iputils-current.tar.gz">arping</ulink>
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          (part of iputils package)</simpara>
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        </listitem>
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        <listitem>
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          <simpara><ulink
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          url="http://www.kernel.org/pub/linux/utils/raid/mdadm/">mdadm</ulink>
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          (Linux Software Raid tools)</simpara>
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        </listitem>
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        <listitem>
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          <simpara><ulink url="http://www.python.org">Python 2.4</ulink></simpara>
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        </listitem>
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        <listitem>
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          <simpara><ulink url="http://twistedmatrix.com/">Python
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          Twisted library</ulink> - the core library is
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          enough</simpara>
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        </listitem>
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        <listitem>
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          <simpara><ulink
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          url="http://pyopenssl.sourceforge.net/">Python OpenSSL
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          bindings</ulink></simpara>
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        </listitem>
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      </itemizedlist>
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      <para>These programs are supplied as part of most Linux
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      distributions, so usually they can be installed via apt or
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      similar methods. Also many of them will already be installed on
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      a standard machine. On Debian Etch you can use this command line
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      to install all of them:</para>
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      <screen>
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# apt-get install lvm2 ssh bridge-utils iproute iputils-arping \
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> fping python2.4 python-twisted-core python-pyopenssl openssl
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      </screen>
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    </sect2>
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  </sect1>
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    <sect2>
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      <title>Installing the Operating System support packages</title>
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      <para>Another important component for Ganeti is the OS support packages,
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        which let different operating systems be used as instances. You can
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        install them by installing the relevant ganeti-instance-OS package.
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      <para>
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        Another important component for Ganeti are the OS support
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        packages, which let different operating systems be used as
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        instances. You can grab a simple package that allows
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        installing Debian Etch instances on the project web site
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        (after download, untar it and follow the instructions in the
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        <filename>README</filename> file).
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      </para>
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      <para>
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        Alternatively, you can create your own OS definitions, see
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        <citerefentry>
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        <refentrytitle>ganeti-os-interface</refentrytitle>
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        <manvolnum>8</manvolnum>
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        </citerefentry>.
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      </para>
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    </sect2>

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