mirror of
https://github.com/systemd/systemd-stable.git
synced 2024-12-23 17:34:00 +03:00
298 lines
9.9 KiB
XML
298 lines
9.9 KiB
XML
<?xml version='1.0'?>
|
|
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
|
|
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
|
|
|
<!--
|
|
SPDX-License-Identifier: LGPL-2.1+
|
|
-->
|
|
|
|
<refentry id="systemd-journal-gatewayd.service" conditional='HAVE_MICROHTTPD'
|
|
xmlns:xi="http://www.w3.org/2001/XInclude">
|
|
|
|
<refentryinfo>
|
|
<title>systemd-journal-gatewayd.service</title>
|
|
<productname>systemd</productname>
|
|
</refentryinfo>
|
|
|
|
<refmeta>
|
|
<refentrytitle>systemd-journal-gatewayd.service</refentrytitle>
|
|
<manvolnum>8</manvolnum>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>systemd-journal-gatewayd.service</refname>
|
|
<refname>systemd-journal-gatewayd.socket</refname>
|
|
<refname>systemd-journal-gatewayd</refname>
|
|
<refpurpose>HTTP server for journal events</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<para><filename>systemd-journal-gatewayd.service</filename></para>
|
|
<para><filename>systemd-journal-gatewayd.socket</filename></para>
|
|
<cmdsynopsis>
|
|
<command>/usr/lib/systemd/systemd-journal-gatewayd</command>
|
|
<arg choice="opt" rep="repeat">OPTIONS</arg>
|
|
</cmdsynopsis>
|
|
</refsynopsisdiv>
|
|
|
|
<refsect1>
|
|
<title>Description</title>
|
|
|
|
<para><command>systemd-journal-gatewayd</command> serves journal
|
|
events over the network. Clients must connect using
|
|
HTTP. The server listens on port 19531 by default.
|
|
If <option>--cert=</option> is specified, the server expects
|
|
HTTPS connections.</para>
|
|
|
|
<para>The program is started by
|
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
|
|
and expects to receive a single socket. Use
|
|
<command>systemctl start systemd-journal-gatewayd.socket</command> to start
|
|
the service, and <command>systemctl enable systemd-journal-gatewayd.socket</command>
|
|
to have it started on boot.</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Options</title>
|
|
|
|
<para>The following options are understood:</para>
|
|
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><option>--cert=</option></term>
|
|
|
|
<listitem><para>Specify the path to a file containing a server
|
|
certificate in PEM format. This option switches
|
|
<command>systemd-journal-gatewayd</command> into HTTPS mode
|
|
and must be used together with
|
|
<option>--key=</option>.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><option>--key=</option></term>
|
|
|
|
<listitem><para>Specify the path to a file containing a server
|
|
key in PEM format corresponding to the certificate specified
|
|
with <option>--cert=</option>.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><option>--trust=</option></term>
|
|
|
|
<listitem><para>Specify the path to a file containing a
|
|
CA certificate in PEM format.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><option>-D <replaceable>DIR</replaceable></option></term>
|
|
<term><option>--directory=<replaceable>DIR</replaceable></option></term>
|
|
|
|
<listitem><para>Takes a directory path as argument. If
|
|
specified, <command>systemd-journal-gatewayd</command> will serve the
|
|
specified journal directory <replaceable>DIR</replaceable> instead of
|
|
the default runtime and system journal paths.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<xi:include href="standard-options.xml" xpointer="help" />
|
|
<xi:include href="standard-options.xml" xpointer="version" />
|
|
</variablelist>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Supported URLs</title>
|
|
|
|
<para>The following URLs are recognized:</para>
|
|
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><uri>/browse</uri></term>
|
|
|
|
<listitem><para>Interactive browsing.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><uri>/entries[?option1&option2=value…]</uri></term>
|
|
|
|
<listitem><para>Retrieval of events in various formats.</para>
|
|
|
|
<para>The <option>Accept:</option> part of the HTTP header
|
|
determines the format. Supported values are described below.
|
|
</para>
|
|
|
|
<para>The <option>Range:</option> part of the HTTP header
|
|
determines the range of events returned. Supported values are
|
|
described below.
|
|
</para>
|
|
|
|
<para>GET parameters can be used to modify what events are
|
|
returned. Supported parameters are described below.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><uri>/machine</uri></term>
|
|
|
|
<listitem><para>Return a JSON structure describing the machine.</para>
|
|
|
|
<para>Example:
|
|
<programlisting>{ "machine_id" : "8cf7ed9d451ea194b77a9f118f3dc446",
|
|
"boot_id" : "3d3c9efaf556496a9b04259ee35df7f7",
|
|
"hostname" : "fedora",
|
|
"os_pretty_name" : "Fedora 19 (Rawhide)",
|
|
"virtualization" : "kvm",
|
|
…}</programlisting>
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><uri>/fields/<replaceable>FIELD_NAME</replaceable></uri></term>
|
|
|
|
<listitem><para>Return a list of values of this field present in the logs.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Accept header</title>
|
|
|
|
<para>
|
|
<option>Accept: <replaceable>format</replaceable></option>
|
|
</para>
|
|
|
|
<para>Recognized formats:</para>
|
|
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><constant>text/plain</constant></term>
|
|
|
|
<listitem><para>The default. Plaintext syslog-like output,
|
|
one line per journal entry
|
|
(like <command>journalctl --output short</command>).</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>application/json</constant></term>
|
|
|
|
<listitem><para>Entries are formatted as JSON data structures,
|
|
one per line
|
|
(like <command>journalctl --output json</command>).
|
|
See <ulink
|
|
url="https://www.freedesktop.org/wiki/Software/systemd/json">Journal
|
|
JSON Format</ulink> for more information.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>text/event-stream</constant></term>
|
|
|
|
<listitem><para>Entries are formatted as JSON data structures,
|
|
wrapped in a format suitable for <ulink
|
|
url="https://developer.mozilla.org/en-US/docs/Server-sent_events/Using_server-sent_events">
|
|
Server-Sent Events</ulink>
|
|
(like <command>journalctl --output json-sse</command>).
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>application/vnd.fdo.journal</constant></term>
|
|
|
|
<listitem><para>Entries are serialized into a binary (but
|
|
mostly text-based) stream suitable for backups and network
|
|
transfer
|
|
(like <command>journalctl --output export</command>).
|
|
See <ulink
|
|
url="https://www.freedesktop.org/wiki/Software/systemd/export">Journal
|
|
Export Format</ulink> for more information.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Range header</title>
|
|
|
|
<para>
|
|
<option>Range: entries=<replaceable>cursor</replaceable>[[:<replaceable>num_skip</replaceable>]:<replaceable>num_entries</replaceable>]</option>
|
|
</para>
|
|
|
|
<para>where
|
|
<option>cursor</option> is a cursor string,
|
|
<option>num_skip</option> is an integer,
|
|
<option>num_entries</option> is an unsigned integer.
|
|
</para>
|
|
|
|
<para>Range defaults to all available events.</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>URL GET parameters</title>
|
|
|
|
<para>Following parameters can be used as part of the URL:</para>
|
|
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><uri>follow</uri></term>
|
|
|
|
<listitem><para>wait for new events
|
|
(like <command>journalctl --follow</command>, except that
|
|
the number of events returned is not limited).</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><uri>discrete</uri></term>
|
|
|
|
<listitem><para>Test that the specified cursor refers to an
|
|
entry in the journal. Returns just this entry.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><uri>boot</uri></term>
|
|
|
|
<listitem><para>Limit events to the current boot of the system
|
|
(like <command>journalctl -b</command>).</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><uri><replaceable>KEY</replaceable>=<replaceable>match</replaceable></uri></term>
|
|
|
|
<listitem><para>Match journal fields. See
|
|
<citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Examples</title>
|
|
<para>Retrieve events from this boot from local journal
|
|
in <ulink
|
|
url="https://www.freedesktop.org/wiki/Software/systemd/export">Journal
|
|
Export Format</ulink>:
|
|
<programlisting>curl --silent -H'Accept: application/vnd.fdo.journal' \
|
|
'http://localhost:19531/entries?boot'</programlisting>
|
|
</para>
|
|
|
|
<para>Listen for core dumps:
|
|
<programlisting>curl 'http://localhost:19531/entries?follow&MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1'</programlisting></para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd-journal-remote.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd-journal-upload.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|