105 lines
3.7 KiB
XML
105 lines
3.7 KiB
XML
<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
|
|
<!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.scope">
|
|
<refentryinfo>
|
|
<title>systemd.scope</title>
|
|
<productname>systemd</productname>
|
|
|
|
<authorgroup>
|
|
<author>
|
|
<contrib>Developer</contrib>
|
|
<firstname>Lennart</firstname>
|
|
<surname>Poettering</surname>
|
|
<email>lennart@poettering.net</email>
|
|
</author>
|
|
</authorgroup>
|
|
</refentryinfo>
|
|
|
|
<refmeta>
|
|
<refentrytitle>systemd.scope</refentrytitle>
|
|
<manvolnum>5</manvolnum>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>systemd.scope</refname>
|
|
<refpurpose>Scope unit configuration</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<para><filename><replaceable>scope</replaceable>.scope</filename></para>
|
|
</refsynopsisdiv>
|
|
|
|
<refsect1>
|
|
<title>Description</title>
|
|
|
|
<para>Scope units are not configured via unit configuration files,
|
|
but are only created programmatically using the bus interfaces of
|
|
systemd. They are named similar to filenames. A unit whose name
|
|
ends in <literal>.scope</literal> refers to a scope unit. Scopes
|
|
units manage a set of system processes. Unlike service units, scope
|
|
units manage externally created processes, and do not fork off
|
|
processes on its own.</para>
|
|
|
|
<para>The main purpose of scope units is grouping worker processes
|
|
of a system service for organization and for managing resources.</para>
|
|
|
|
<para><command>systemd-run <option>--scope</option></command> may
|
|
be used to easily launch a command in a new scope unit from the
|
|
command line.</para>
|
|
|
|
<para>See the <ulink
|
|
url="https://www.freedesktop.org/wiki/Software/systemd/ControlGroupInterface/">New
|
|
Control Group Interfaces</ulink> for an introduction on how to make
|
|
use of scope units from programs.</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Automatic Dependencies</title>
|
|
|
|
<refsect2>
|
|
<title>Implicit Dependencies</title>
|
|
|
|
<para>Implicit dependencies may be added as result of
|
|
resource control parameters as documented in
|
|
<citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
|
|
</refsect2>
|
|
|
|
<refsect2>
|
|
<title>Default Dependencies</title>
|
|
|
|
<para>The following dependencies are added unless
|
|
<varname>DefaultDependencies=no</varname> is set:</para>
|
|
|
|
<itemizedlist>
|
|
<listitem><para>Scope units will automatically have dependencies of
|
|
type <varname>Conflicts=</varname> and
|
|
<varname>Before=</varname> on
|
|
<filename>shutdown.target</filename>. These ensure
|
|
that scope units are removed prior to system
|
|
shutdown. Only scope units involved with early boot or
|
|
late system shutdown should disable
|
|
<varname>DefaultDependencies=</varname> option.</para></listitem>
|
|
</itemizedlist>
|
|
</refsect2>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd-run</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|