man: document the slice and scope units, add systemd.cgroup(5)
This commit is contained in:
Zbigniew Jędrzejewski-Szmek
parent
479fe882ae
commit
d868475ad6
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@ -76,6 +76,7 @@ MANPAGES += \
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man/systemd-update-utmp.service.8 \
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man/systemd.1 \
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man/systemd.automount.5 \
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man/systemd.cgroup.5 \
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man/systemd.device.5 \
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man/systemd.exec.5 \
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man/systemd.journal-fields.7 \
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@ -83,7 +84,9 @@ MANPAGES += \
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man/systemd.mount.5 \
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man/systemd.path.5 \
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man/systemd.preset.5 \
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man/systemd.scope.5 \
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man/systemd.service.5 \
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man/systemd.slice.5 \
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man/systemd.snapshot.5 \
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man/systemd.socket.5 \
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man/systemd.special.7 \
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@ -0,0 +1,308 @@
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<?xml version='1.0'?> <!--*-nxml-*-->
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<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2013 Zbigniew Jędrzejewski-Szmek
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="systemd.cgroup">
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<refentryinfo>
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<title>systemd.cgroup</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Lennart</firstname>
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<surname>Poettering</surname>
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<email>lennart@poettering.net</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd.cgroup</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd.cgroup</refname>
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<refpurpose>Cgroup configuration unit settings</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para>
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<filename><replaceable>slice</replaceable>.slice</filename>,
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<filename><replaceable>scope</replaceable>.scope</filename>,
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<filename><replaceable>service</replaceable>.service</filename>,
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<filename><replaceable>socket</replaceable>.socket</filename>,
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<filename><replaceable>mount</replaceable>.mount</filename>,
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<filename><replaceable>swap</replaceable>.swap</filename>
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</para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>Unit configuration files for services, slices, scopes,
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sockets, mount points, and swap devices share a subset of
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configuration options which configure the control group settings
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for spawned processes.</para>
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<para>This man page lists the configuration options shared by
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those six unit types. See
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<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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for the common options of all unit configuration files, and
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<citerefentry><refentrytitle>systemd.slice</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.scope</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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and
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<citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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for more information on the specific unit configuration files. The
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execution specific configuration options are configured in the
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[Slice], [Scope], [Service], [Socket], [Mount], or [Swap]
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sections, depending on the unit type.</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>Units of the types listed above can have settings
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for cgroup configuration:</para>
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<variablelist class='unit-directives'>
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<varlistentry>
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<term><varname>CPUAccounting=</varname></term>
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<listitem>
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<para>Turn on the CPU usage accounting for this
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unit.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>BlockIOAccounting=</varname></term>
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<listitem>
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<para>Turn on the Block IO bandwidth accounting
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for this unit.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>MemoryAccounting=</varname></term>
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<listitem>
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<para>Turn on the process and kernel memory
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accounting for this unit.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>CPUShares=<replaceable>weight</replaceable></varname></term>
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<listitem>
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<para>Assign the specified overall CPU time share weight to
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the processes executed. Takes an integer value. This
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controls the <literal>cpu.shares</literal> control group
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attribute, which defaults to 1024. For details about this
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control group attribute see <ulink
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url="http://www.kernel.org/doc/Documentation/scheduler/sched-design-CFS.txt">sched-design-CFS.txt</ulink>.</para>
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<para>Implies <literal>CPUAccounting=true</literal>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>MemoryLimit=<replaceable>bytes</replaceable></varname></term>
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<term><varname>MemorySoftLimit=<replaceable>bytes</replaceable></varname></term>
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<listitem>
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<para>Specify the hard and soft limits on maximum memory
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usage of the executed processes. The "hard" limit specifies
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how much process and kernel memory can be used by tasks in
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this unit, when there is no memory contention. If the kernel
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detects memory contention, memory reclaim will be performed
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until the memory usage is within the "soft" limit. Takes a
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memory size in bytes. If the value is suffixed with K, M, G
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or T the specified memory size is parsed as Kilobytes,
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Megabytes, Gigabytes, or Terabytes (with the base 1024),
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respectively. This controls the
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<literal>memory.limit_in_bytes</literal> and
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<literal>memory.soft_limit_in_bytes</literal> control group
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attributes. For details about these control group attributes
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see <ulink
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url="http://www.kernel.org/doc/Documentation/cgroups/memory.txt">memory.txt</ulink>.</para>
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<para>Implies <literal>MemoryAccounting=true</literal>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>BlockIOWeight=<replaceable>weight</replaceable></varname></term>
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<listitem><para>Set the default
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overall block IO weight for the
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executed processes. Takes a single
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weight value (between 10 and 1000) to
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set the default block IO weight. This
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controls the
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<literal>blkio.weight</literal>
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control group attribute, which
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defaults to 1000. For details about
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this control group attribute see
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<ulink
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url="http://www.kernel.org/doc/Documentation/cgroups/blkio-controller.txt">blkio-controller.txt</ulink>.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>BlockIODeviceWeight=<replaceable>device</replaceable> <replaceable>weight</replaceable></varname></term>
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<listitem>
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<para>Set the per-device overall block IO weight for the
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executed processes. Takes a space-separated pair of a file
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path and a weight value to specify the device specific
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weight value, between 10 and 1000. (Example: "/dev/sda
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500"). The file path may be specified as path to a block
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device node or as any other file in which case the backing
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block device of the file system of the file is
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determined. This controls the
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<literal>blkio.weight_device</literal> control group
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attribute, which defaults to 1000. Use this option multiple
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times to set weights for multiple devices. For details about
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this control group attribute see <ulink
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url="http://www.kernel.org/doc/Documentation/cgroups/blkio-controller.txt">blkio-controller.txt</ulink>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>BlockIOReadBandwidth=<replaceable>device</replaceable> <replaceable>bytes</replaceable></varname></term>
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<term><varname>BlockIOWriteBandwidth=<replaceable>device</replaceable> <replaceable>bytes</replaceable></varname></term>
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<listitem>
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<para>Set the per-device overall block IO bandwidth limit
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for the executed processes. Takes a space-separated pair of
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a file path and a bandwidth value (in bytes per second) to
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specify the device specific bandwidth. The file path may be
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a path to a block device node, or as any other file in which
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case the backing block device of the file system of the file
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is used. If the bandwidth is suffixed with K, M, G, or T
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the specified bandwidth is parsed as Kilobytes, Megabytes,
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Gigabytes, or Terabytes, respectively (Example:
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"/dev/disk/by-path/pci-0000:00:1f.2-scsi-0:0:0:0 5M"). This
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controls the <literal>blkio.read_bps_device</literal> and
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<literal>blkio.write_bps_device</literal> control group
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attributes. Use this option multiple times to set bandwidth
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limits for multiple devices. For details about these control
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group attributes see
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<ulink url="http://www.kernel.org/doc/Documentation/cgroups/blkio-controller.txt">blkio-controller.txt</ulink>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>DeviceAllow=</varname></term>
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<listitem>
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<para>Control access to specific device nodes by the
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executed processes. Takes two space-separated strings: a
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device node path (such as <filename>/dev/null</filename>)
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followed by a combination of <constant>r</constant>,
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<constant>w</constant>, <constant>m</constant> to control
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<emphasis>r</emphasis>eading, <emphasis>w</emphasis>riting,
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or creating of the specific device node by the unit
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(<emphasis>m</emphasis>knod), respectively. This controls
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the <literal>devices.allow</literal> and
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<literal>devices.deny</literal> control group
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attributes. For details about these control group attributes
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see <ulink
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url="http://www.kernel.org/doc/Documentation/cgroups/devices.txt">devices.txt</ulink>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>DevicePolicy=auto|closed|strict</varname></term>
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<listitem>
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<para>
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Control the policy for allowing device access:
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</para>
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<variablelist>
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<varlistentry>
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<term><option>strict</option></term>
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<listitem>
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<para>means to only allow types of access that are
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explicitly specified.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>closed</option></term>
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<listitem>
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<para>in addition allows access to standard pseudo
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devices including
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<filename>/dev/null</filename>,
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<filename>/dev/zero</filename>,
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<filename>/dev/full</filename>,
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<filename>/dev/random</filename>, and
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<filename>/dev/urandom</filename>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>auto</option></term>
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<listitem>
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<para>
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in addition allows access to all devices if no
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explicit <varname>DeviceAllow=</varname> is present.
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This is the default.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.slice</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.scope</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
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The documentation for control groups and specific controllers in the Linux kernel:
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<ulink url="http://www.kernel.org/doc/Documentation/cgroups/cgroups.txt">cgroups.txt</ulink>,
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<ulink url="http://www.kernel.org/doc/Documentation/cgroups/cpuacct.txt">cpuacct.txt</ulink>,
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<ulink url="http://www.kernel.org/doc/Documentation/cgroups/memory.txt">memory.txt</ulink>,
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<ulink url="http://www.kernel.org/doc/Documentation/cgroups/blkio-controller.txt">blkio-controller.txt</ulink>.
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</para>
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</refsect1>
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</refentry>
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@ -58,7 +58,7 @@
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<title>Description</title>
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<para>Unit configuration files for services, sockets,
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mount points and swap devices share a subset of
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mount points, and swap devices share a subset of
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configuration options which define the execution
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environment of spawned processes.</para>
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@ -69,7 +69,7 @@
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files, and
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<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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<citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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and
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<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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for more information on the specific unit
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|
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@ -945,124 +945,6 @@
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>CPUShares=</varname></term>
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<listitem><para>Assign the specified
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overall CPU time shares to the
|
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processes executed. Takes an integer
|
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value. This controls the
|
||||
<literal>cpu.shares</literal> control
|
||||
group attribute, which defaults to
|
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1024. For details about this control
|
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group attribute see <ulink
|
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url="http://www.kernel.org/doc/Documentation/scheduler/sched-design-CFS.txt">sched-design-CFS.txt</ulink>.</para></listitem>
|
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</varlistentry>
|
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|
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<varlistentry>
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<term><varname>MemoryLimit=</varname></term>
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<term><varname>MemorySoftLimit=</varname></term>
|
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|
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<listitem><para>Limit the overall memory usage
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of the executed processes to a certain
|
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size. Takes a memory size in bytes. If
|
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the value is suffixed with K, M, G or
|
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T the specified memory size is parsed
|
||||
as Kilobytes, Megabytes, Gigabytes,
|
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or Terabytes (to the base
|
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1024), respectively. This controls the
|
||||
<literal>memory.limit_in_bytes</literal>
|
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and
|
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<literal>memory.soft_limit_in_bytes</literal>
|
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control group attributes. For details
|
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about these control group attributes
|
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see <ulink
|
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url="http://www.kernel.org/doc/Documentation/cgroups/memory.txt">memory.txt</ulink>.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>DeviceAllow=</varname></term>
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<term><varname>DeviceDeny=</varname></term>
|
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|
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<listitem><para>Control access to
|
||||
specific device nodes by the executed processes. Takes two
|
||||
space-separated strings: a device node
|
||||
path (such as
|
||||
<filename>/dev/null</filename>)
|
||||
followed by a combination of r, w, m
|
||||
to control reading, writing, or
|
||||
creating of the specific device node
|
||||
by the unit, respectively. This controls the
|
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<literal>devices.allow</literal>
|
||||
and
|
||||
<literal>devices.deny</literal>
|
||||
control group attributes. For details
|
||||
about these control group attributes
|
||||
see <ulink
|
||||
url="http://www.kernel.org/doc/Documentation/cgroups/devices.txt">devices.txt</ulink>.</para></listitem>
|
||||
</varlistentry>
|
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|
||||
<varlistentry>
|
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<term><varname>BlockIOWeight=</varname></term>
|
||||
|
||||
<listitem><para>Set the default or
|
||||
per-device overall block IO weight
|
||||
value for the executed
|
||||
processes. Takes either a single
|
||||
weight value (between 10 and 1000) to
|
||||
set the default block IO weight, or a
|
||||
space-separated pair of a file path
|
||||
and a weight value to specify the
|
||||
device specific weight value (Example:
|
||||
"/dev/sda 500"). The file path may be
|
||||
specified as path to a block device
|
||||
node or as any other file in which
|
||||
case the backing block device of the
|
||||
file system of the file is
|
||||
determined. This controls the
|
||||
<literal>blkio.weight</literal> and
|
||||
<literal>blkio.weight_device</literal>
|
||||
control group attributes, which
|
||||
default to 1000. Use this option
|
||||
multiple times to set weights for
|
||||
multiple devices. For details about
|
||||
these control group attributes see
|
||||
<ulink
|
||||
url="http://www.kernel.org/doc/Documentation/cgroups/blkio-controller.txt">blkio-controller.txt</ulink>.</para></listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry>
|
||||
<term><varname>BlockIOReadBandwidth=</varname></term>
|
||||
<term><varname>BlockIOWriteBandwidth=</varname></term>
|
||||
|
||||
<listitem><para>Set the per-device
|
||||
overall block IO bandwidth limit for
|
||||
the executed processes. Takes a
|
||||
space-separated pair of a file path and a
|
||||
bandwidth value (in bytes per second)
|
||||
to specify the device specific
|
||||
bandwidth. The file path may be
|
||||
specified as path to a block device
|
||||
node or as any other file in which
|
||||
case the backing block device of the
|
||||
file system of the file is determined.
|
||||
If the bandwidth is suffixed with K, M,
|
||||
G, or T the specified bandwidth is
|
||||
parsed as Kilobytes, Megabytes,
|
||||
Gigabytes, or Terabytes, respectively (Example:
|
||||
"/dev/disk/by-path/pci-0000:00:1f.2-scsi-0:0:0:0
|
||||
5M"). This controls the
|
||||
<literal>blkio.read_bps_device</literal>
|
||||
and
|
||||
<literal>blkio.write_bps_device</literal>
|
||||
control group attributes. Use this
|
||||
option multiple times to set bandwidth
|
||||
limits for multiple devices. For
|
||||
details about these control group
|
||||
attributes see <ulink
|
||||
url="http://www.kernel.org/doc/Documentation/cgroups/blkio-controller.txt">blkio-controller.txt</ulink>.</para></listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry>
|
||||
<term><varname>ReadWriteDirectories=</varname></term>
|
||||
<term><varname>ReadOnlyDirectories=</varname></term>
|
||||
|
|
|
|||
|
|
@ -73,12 +73,16 @@
|
|||
which define the execution environment the
|
||||
<citerefentry><refentrytitle>mount</refentrytitle><manvolnum>8</manvolnum></citerefentry>
|
||||
binary is executed in, and in
|
||||
<citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
||||
which define the way the processes are
|
||||
terminated. Note that the User= and Group= options are
|
||||
not particularly useful for mount units specifying a
|
||||
<literal>Type=</literal> option or using configuration
|
||||
not specified in <filename>/etc/fstab</filename>;
|
||||
<citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
which define the way the processes are terminated, and
|
||||
in
|
||||
<citerefentry><refentrytitle>systemd.cgroup</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
which configure control group settings for the
|
||||
processes of the service. Note that the User= and
|
||||
Group= options are not particularly useful for mount
|
||||
units specifying a <literal>Type=</literal> option or
|
||||
using configuration not specified in
|
||||
<filename>/etc/fstab</filename>;
|
||||
<citerefentry><refentrytitle>mount</refentrytitle><manvolnum>8</manvolnum></citerefentry>
|
||||
will refuse options that aren't listed in
|
||||
<filename>/etc/fstab</filename> if it is not run as
|
||||
|
|
@ -298,6 +302,7 @@
|
|||
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.cgroup</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.device</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>proc</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
|
|
|
|||
|
|
@ -0,0 +1,100 @@
|
|||
<?xml version='1.0'?> <!--*-nxml-*-->
|
||||
<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
|
||||
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
|
||||
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
||||
|
||||
<!--
|
||||
This file is part of systemd.
|
||||
|
||||
Copyright 2013 Zbigniew Jędrzejewski-Szmek
|
||||
|
||||
systemd is free software; you can redistribute it and/or modify it
|
||||
under the terms of the GNU Lesser General Public License as published by
|
||||
the Free Software Foundation; either version 2.1 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
systemd is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public License
|
||||
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
||||
-->
|
||||
|
||||
<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>A unit configuration file whose name ends in
|
||||
<literal>.scope</literal> encodes information about a unit created
|
||||
by systemd to encapsulate processes launched not by systemd
|
||||
itself. This management is performed by creating a node in the
|
||||
control group tree. Processes are moved into the scope by means
|
||||
of the DBus API.
|
||||
<command>systemd-run <option>--scope</option></command> can be
|
||||
used to easily launch a command in a new scope unit.</para>
|
||||
|
||||
<para>See
|
||||
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
||||
for the common options of all unit configuration
|
||||
files. The common configuration items are configured
|
||||
in the generic [Unit] and [Install] sections. The
|
||||
scope specific configuration options are configured in
|
||||
the [Scope] section. Currently, only generic cgroup settings
|
||||
as described in
|
||||
<citerefentry><refentrytitle>systemd.cgroup</refentrytitle><manvolnum>7</manvolnum></citerefentry> are allowed.
|
||||
</para>
|
||||
|
||||
<para>Unless <varname>DefaultDependencies=false</varname>
|
||||
is used, scope units will implicitly 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 this option.
|
||||
</para>
|
||||
</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.cgroup</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>
|
||||
|
|
@ -73,9 +73,12 @@
|
|||
<citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
which define the execution environment the commands
|
||||
are executed in, and in
|
||||
<citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
||||
<citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
which define the way the processes of the service are
|
||||
terminated.</para>
|
||||
terminated, and in
|
||||
<citerefentry><refentrytitle>systemd.cgroup</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
which configure control group settings for the
|
||||
processes of the service.</para>
|
||||
|
||||
<para>Unless <varname>DefaultDependencies=</varname>
|
||||
is set to <option>false</option>, service units will
|
||||
|
|
@ -994,6 +997,7 @@
|
|||
<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.cgroup</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>
|
||||
</para>
|
||||
|
|
|
|||
|
|
@ -0,0 +1,99 @@
|
|||
<?xml version='1.0'?> <!--*-nxml-*-->
|
||||
<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
|
||||
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
|
||||
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
||||
|
||||
<!--
|
||||
This file is part of systemd.
|
||||
|
||||
Copyright 2013 Zbigniew Jędrzejewski-Szmek
|
||||
|
||||
systemd is free software; you can redistribute it and/or modify it
|
||||
under the terms of the GNU Lesser General Public License as published by
|
||||
the Free Software Foundation; either version 2.1 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
systemd is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public License
|
||||
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
||||
-->
|
||||
|
||||
<refentry id="systemd.slice">
|
||||
<refentryinfo>
|
||||
<title>systemd.slice</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.slice</refentrytitle>
|
||||
<manvolnum>5</manvolnum>
|
||||
</refmeta>
|
||||
|
||||
<refnamediv>
|
||||
<refname>systemd.slice</refname>
|
||||
<refpurpose>Slice unit configuration</refpurpose>
|
||||
</refnamediv>
|
||||
|
||||
<refsynopsisdiv>
|
||||
<para><filename><replaceable>slice</replaceable>.slice</filename></para>
|
||||
</refsynopsisdiv>
|
||||
|
||||
<refsect1>
|
||||
<title>Description</title>
|
||||
|
||||
<para>A unit configuration file whose name ends in
|
||||
<literal>.slice</literal> encodes information about a slice
|
||||
created by systemd to manage resources used by a certain group of
|
||||
processes. This management is performed by creating a node in the
|
||||
control group tree. Those processes are part of different units,
|
||||
usually <literal>.service</literal> units (see
|
||||
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>).
|
||||
</para>
|
||||
|
||||
<para>See
|
||||
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
||||
for the common options of all unit configuration
|
||||
files. The common configuration items are configured
|
||||
in the generic [Unit] and [Install] sections. The
|
||||
slice specific configuration options are configured in
|
||||
the [Slice] section. Currently, only generic cgroup settings
|
||||
as described in
|
||||
<citerefentry><refentrytitle>systemd.cgroup</refentrytitle><manvolnum>7</manvolnum></citerefentry> are allowed.
|
||||
</para>
|
||||
|
||||
<para>Unless <varname>DefaultDependencies=false</varname>
|
||||
is used, slice units will implicitly have dependencies of
|
||||
type <varname>Conflicts=</varname> and
|
||||
<varname>Before=</varname> on
|
||||
<filename>shutdown.target</filename>. These ensure
|
||||
that slice units are removed prior to system
|
||||
shutdown. Only slice units involved with early boot or
|
||||
late system shutdown should disable this option.
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1>
|
||||
<title>See Also</title>
|
||||
<para>
|
||||
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.cgroup</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>
|
||||
|
|
@ -77,9 +77,12 @@
|
|||
<option>ExecStopPre=</option> and
|
||||
<option>ExecStopPost=</option> commands are executed
|
||||
in, and in
|
||||
<citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
||||
<citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
which define the way the processes are
|
||||
terminated.</para>
|
||||
terminated, and in
|
||||
<citerefentry><refentrytitle>systemd.cgroup</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
which configure control group settings for the
|
||||
processes of the service.</para>
|
||||
|
||||
<para>For each socket file a matching service file
|
||||
(see
|
||||
|
|
@ -709,6 +712,7 @@
|
|||
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.cgroup</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>
|
||||
</para>
|
||||
|
|
|
|||
|
|
@ -73,9 +73,12 @@
|
|||
which define the execution environment the
|
||||
<citerefentry><refentrytitle>swapon</refentrytitle><manvolnum>8</manvolnum></citerefentry>
|
||||
binary is executed in, and in
|
||||
<citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
||||
<citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
which define the way the processes are
|
||||
terminated.</para>
|
||||
terminated, and in
|
||||
<citerefentry><refentrytitle>systemd.cgroup</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
which configure control group settings for the
|
||||
processes of the service.</para>
|
||||
|
||||
<para>Swap units must be named after the devices
|
||||
or files they control. Example: the swap device
|
||||
|
|
@ -203,6 +206,7 @@
|
|||
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.cgroup</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.device</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>swapon</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
|
||||
|
|
|
|||
Loading…
Reference in New Issue