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109 lines
2.5 KiB
109 lines
2.5 KiB
<?xml version="1.0" encoding='ISO-8859-1'?>
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<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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<!-- Include general documentation entities -->
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<!ENTITY % docentities SYSTEM "../../../docbook/entities.xml">
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%docentities;
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]>
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<!-- Module User's Guide -->
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<chapter>
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<title>&adminguide;</title>
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<section>
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<title>Overview</title>
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<para>
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It provides logging to systemd journal from the moment
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of loading this module.
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</para>
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</section>
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<section>
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<title>Dependencies</title>
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<section>
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<title>&kamailio; Modules</title>
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<para>
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The following modules must be loaded before this module:
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<itemizedlist>
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<listitem>
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<para>
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<emphasis>none</emphasis>.
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</para>
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</listitem>
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</itemizedlist>
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</para>
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</section>
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<section>
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<title>External Libraries or Applications</title>
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<para>
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The following libraries or applications must be installed before running
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&kamailio; with this module loaded:
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<itemizedlist>
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<listitem>
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<para>
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<emphasis>libsystemd</emphasis>
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</para>
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</listitem>
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</itemizedlist>
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</para>
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</section>
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</section>
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<section>
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<title>Core Logging</title>
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<para>
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This module can replace the syslog logging with sending the log messages
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to systemd journal. The logging to systemd is
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started when this module is loaded, before that the default
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syslog system is used.
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</para>
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<para>
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It requires that core parameters log_engine_type to be set to 'systemd'.
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It is not enabled if log_stderror=yes.
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</para>
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<example>
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<title><function>Core Logging Replacement with Systemd</function></title>
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<programlisting format="linespecific">
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...
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log_engine_type="systemd"
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...
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loadmodule "log_systemd.so"
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...
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</programlisting>
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</example>
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</section>
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<section>
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<title>Functions</title>
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<section id="log_systemd.f.sd_journal_print">
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<title>
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<function moreinfo="none">sd_journal_print(level, text)</function>
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</title>
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<para>
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Print the text in the systemd journal at the provided level parameter.
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</para>
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<para>
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Both parameters can contain variables.
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</para>
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<para>
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For more, see the manual page for function sd_journal_print() in C library libsystemd.
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</para>
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<para>
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This function can be used from ANY_ROUTE.
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</para>
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<example>
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<title><function>sd_journal_print</function> usage</title>
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<programlisting format="linespecific">
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...
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sd_journal_print("LOG_INFO", "R-URI is $ru\n");
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...
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</programlisting>
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</example>
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</section>
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</section>
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</chapter>
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