Add installation instructions

This commit is contained in:
Ian Barwick
2017-09-13 00:16:55 +09:00
committed by Ian Barwick
parent b049d7f0ec
commit 2a48edb625
7 changed files with 276 additions and 2 deletions

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<appendix id="appendix-signatures" xreflabel="Verifying digital signatures">
<title>Verifying digital signatures</title>
<para>WIP</para>
</appendix>

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<!ENTITY % standalone-ignore "INCLUDE">
<!ENTITY % standalone-include "IGNORE">
<!-- doc/filelist.sgml -->
<!--
By default, no index is included. Use -i include-index on the command line
to include it.
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-->
<!ENTITY overview SYSTEM "overview.sgml">
<!ENTITY install SYSTEM "install.sgml">
<!ENTITY install-requirements SYSTEM "install-requirements.sgml">
<!ENTITY install-packages SYSTEM "install-packages.sgml">
<!ENTITY install-source SYSTEM "install-source.sgml">
<!ENTITY appendix-signatures SYSTEM "appendix-signatures.sgml">

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<sect1 id="installation-packages" xreflabel="Installing from packages">
<title>Installing &repmgr; from packages</title>
<para>
We recommend installing `repmgr` using the available packages for your
system.
</para>
<sect2 id="installation-packages-redhat" xreflabel="Installing from packages on RHEL, Fedora and CentOS">
<title>RedHat/Fedora/CentOS</title>
<para>
RPM packages for `repmgr` are available via Yum through
the PostgreSQL Global Development Group RPM repository
( <ulink url="http://yum.postgresql.org/">http://yum.postgresql.org/</>).
Follow the instructions for your distribution (RedHat, CentOS,
Fedora, etc.) and architecture as detailed at yum.postgresql.org.
</para>
<para>
2ndQuadrant also provides its own RPM packages which are made available
at the same time as each `repmgr` release, as it can take some days for
them to become available via the main PGDG repository. See here for details:
<ulink url="http://repmgr.org/yum-repository.html">http://repmgr.org/yum-repository.html</>
</para>
</sect2>
<sect2 id="installation-packages-debian" xreflabel="Installing from packages on Debian or Ubuntu">
<title>Debian/Ubuntu</title>
<para>.deb packages for `repmgr` are available from the
PostgreSQL Community APT repository (<ulink url="http://apt.postgresql.org/">http://apt.postgresql.org/</> ).
Instructions can be found in the APT section of the PostgreSQL Wiki
(<ulink url="https://wiki.postgresql.org/wiki/Apt">https://wiki.postgresql.org/wiki/Apt</> ).
</para>
</sect2>
</sect1>

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<sect1 id="install-requirements" xreflabel="installation requirements">
<title>Requirements for installing repmgr</title>
<para>
repmgr is developed and tested on Linux and OS X, but should work on any
UNIX-like system supported by PostgreSQL itself. There is no support for
Microsoft Windows.
</para>
<para>
From version 4.0, repmgr is compatible with all PostgreSQL versions from 9.4, including PostgreSQL 10.
</para>
<para>
PostgreSQL 9.3 is supported by repmgr 3.3.
</para>
<note>
<simpara>
If upgrading from `repmgr 3`, please see the separate upgrade guide
`doc/upgrading-from-repmgr3.md`.
</simpara>
</note>
<para>
All servers in the replication cluster must be running the same major version of
PostgreSQL, and we recommend that they also run the same minor version.
</para>
<para>
`repmgr` must be installed on each server in the replication cluster.
If installing repmgr from packages, the package version must match the PostgreSQL
version. If installing from source, repmgr must be compiled against the same
major version.
</para>
<para>
A dedicated system user for `repmgr` is *not* required; as many `repmgr` and
`repmgrd` actions require direct access to the PostgreSQL data directory,
these commands should be executed by the `postgres` user.
</para>
<para>
Passwordless `ssh` connectivity between all servers in the replication cluster
is not required, but is necessary in the following cases:
<itemizedlist>
<listitem>
<simpara>if you need `repmgr` to copy configuration files from outside the PostgreSQL
data directory (in which case `rsync` is also required)</simpara>
</listitem>
<listitem>
<simpara>to perform switchover operations</simpara>
</listitem>
<listitem>
<simpara>when executing `repmgr cluster matrix` and `repmgr cluster crosscheck`</simpara>
</listitem>
</itemizedlist>
</para>
<tip>
<simpara>
We recommend using a session multiplexer utility such as `screen` or
`tmux` when performing long-running actions (such as cloning a database)
on a remote server - this will ensure the `repmgr` action won't be prematurely
terminated if your `ssh` session to the server is interrupted or closed.
</simpara>
</tip>
</sect1>

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<sect1 id="installation-source" xreflabel="Installing from source code">
<title>Installing &repmgr; from source</title>
<sect2 id="installation-source-prereqs">
<title>Prerequisites for installing from source</title>
<para>
To install &repmgr; the prerequisites for compiling
&postgres; must be installed. These are described in &postgres;'s
documentation
on <ulink url="https://www.postgresql.org/docs/current/install-requirements.html">build requirements</ulink>
and <ulink url="https://www.postgresql.org/docs/current/docguide-toolsets.html">build requirements for documentation</ulink>.
</para>
<para>
Most mainstream Linux distributions and other UNIX variants provide simple
ways to install the prerequisites from packages.
<itemizedlist spacing="compact" mark="bullet">
<listitem>
<para>
<literal>Debian</literal> and <literal>Ubuntu</literal>: First
add the <ulink
url="http://apt.postgresql.org/">apt.postgresql.org</ulink>
repository to your <filename>sources.list</filename> if you
have not already done so. Then install the pre-requisites for
building PostgreSQL with:
<programlisting>
sudo apt-get update
sudo apt-get build-dep postgresql-9.6
</programlisting>
</para>
</listitem>
<listitem>
<para>
<literal>RHEL or CentOS 6.x or 7.x</literal>: install the appropriate repository RPM
for your system from <ulink url="http://yum.postgresql.org/repopackages.php">
yum.postgresql.org</ulink>. Then install the prerequisites for building
PostgreSQL with:
<programlisting>
sudo yum check-update
sudo yum groupinstall "Development Tools"
sudo yum install yum-utils openjade docbook-dtds docbook-style-dsssl docbook-style-xsl
sudo yum-builddep postgresql96
</programlisting>
</para>
</listitem>
</itemizedlist>
</para>
<note>
<simpara>
Select the appropriate PostgreSQL versions for your target repmgr version.
</simpara>
</note>
</sect2>
<sect2 id="installation-get-source">
<title>Getting &repmgr; source code</title>
<para>
There are two ways to get the &repmgr; source code: with git, or by downloading tarballs of released versions.
</para>
<sect3>
<title>Using <application>git</application> to get the &repmgr; sources</title>
<para>
Use <application><ulink url="http://git-scm.org">git</ulink></application> if you expect
to update often, you want to keep track of development or if you want to contribute
changes to &repmgr;. There is no reason <emphasis>not</emphasis> to use <application>git</application>
if you're familiar with it.
</para>
<para>
The source for &repmgr; is maintained at
<ulink url="https://github.com/2ndQuadrant/repmgr">https://github.com/2ndQuadrant/repmgr</ulink>.
</para>
<para>
There are also tags for each &repmgr; release, e.g. <filename>REL4_0_STABLE</filename>.
</para>
<para>
Clone the source code using <application>git</application>:
<programlisting>
git clone https://github.com/2ndQuadrant/repmgr
</programlisting>
</para>
<para>
For more information on using <application>git</application> see
<ulink url="http://git-scm.org/">git-scm.org</ulink>.
</para>
</sect3>
<sect3>
<title>Downloading release source tarballs</title>
<para>
Official release source code is uploaded as tarballs to the
&repmgr; website along with a tarball checksum and a matching GnuPG
signature. See
<ulink url="http://repmgr.org/">http://repmgr.org/</ulink>
for the download information. See <xref linkend="appendix-signatures">
for information on verifying digital signatures.
</para>
<para>
You will need to download the repmgr source, e.g. <filename>repmgr-4.0.tar.gz</filename>.
You may optionally verify the package checksums from the
<literal>.md5</literal> files and/or verify the GnuPG signatures
per <xref linkend="appendix-signatures">.
</para>
<para>
After you unpack the source code archives using <literal>tar xf</literal>
the installation process is the same as if you were installing from a git
clone.
</para>
</sect3>
</sect2>
<sect2 id="installation-repmgr-source">
<title>Installation of &repmgr; from source</title>
<para>
To installing &repmgr; from source, simply execute:
<programlisting>
./configure && make install
</programlisting>
Ensure `pg_config` for the target PostgreSQL version is in `$PATH`.
</para>
</sect2>
</sect1>

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<chapter id="installation" xreflabel="Installation">
<title>Installation</title>
<para>
&repmgr; can be installed from binary packages provided by your operating
system's packaging system, or from source.
</para>
<para>
In general we recommend using binary packages, unless unavailable for your operating system.
</para>
<para>
Source installs are mainly useful if you want to keep track of the very
latest repmgr development and contribute to development. They're also the
only option if there are no packages for your operating system yet.
</para>
<para>
Before installing &repmgr; make sure you satisfy the <xref linkend="install-requirements">.
</para>
&install-requirements;
&install-packages;
&install-source;
</chapter>

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<part id="getting-started">
<title>Getting started</title>
&overview;
&install;
</part>
&appendix-signatures;
<![%include-index;[&bookindex;]]>
<![%include-xslt-index;[<index id="bookindex"></index>]]>