644 lines
30 KiB
XML
644 lines
30 KiB
XML
<?xml version='1.0'?>
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" >
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<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
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<refentry id="org.freedesktop.machine1" conditional='ENABLE_MACHINED'
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>org.freedesktop.machine1</title>
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<productname>systemd</productname>
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</refentryinfo>
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<refmeta>
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<refentrytitle>org.freedesktop.machine1</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>org.freedesktop.machine1</refname>
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<refpurpose>The D-Bus interface of systemd-machined</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Introduction</title>
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<para>
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<citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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is a system service that keeps track of locally running virtual machines and containers.
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This page describes the D-Bus interface.</para>
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</refsect1>
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<refsect1>
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<title>The Manager Object</title>
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<para>The service exposes the following interfaces on the Manager object on the bus:</para>
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<programlisting executable="systemd-machined" node="/org/freedesktop/machine1" interface="org.freedesktop.machine1.Manager">
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node /org/freedesktop/machine1 {
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interface org.freedesktop.machine1.Manager {
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methods:
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GetMachine(in s name,
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out o machine);
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GetImage(in s name,
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out o image);
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GetMachineByPID(in u pid,
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out o machine);
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ListMachines(out a(ssso) machines);
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ListImages(out a(ssbttto) images);
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CreateMachine(in s name,
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in ay id,
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in s service,
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in s class,
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in u leader,
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in s root_directory,
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in a(sv) scope_properties,
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out o path);
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CreateMachineWithNetwork(in s name,
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in ay id,
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in s service,
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in s class,
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in u leader,
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in s root_directory,
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in ai ifindices,
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in a(sv) scope_properties,
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out o path);
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RegisterMachine(in s name,
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in ay id,
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in s service,
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in s class,
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in u leader,
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in s root_directory,
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out o path);
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RegisterMachineWithNetwork(in s name,
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in ay id,
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in s service,
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in s class,
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in u leader,
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in s root_directory,
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in ai ifindices,
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out o path);
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UnregisterMachine(in s name);
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TerminateMachine(in s id);
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KillMachine(in s name,
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in s who,
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in i signal);
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GetMachineAddresses(in s name,
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out a(iay) addresses);
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GetMachineOSRelease(in s name,
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out a{ss} fields);
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OpenMachinePTY(in s name,
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out h pty,
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out s pty_path);
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OpenMachineLogin(in s name,
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out h pty,
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out s pty_path);
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OpenMachineShell(in s name,
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in s user,
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in s path,
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in as args,
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in as environment,
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out h pty,
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out s pty_path);
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BindMountMachine(in s name,
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in s source,
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in s destination,
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in b read_only,
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in b mkdir);
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CopyFromMachine(in s name,
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in s source,
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in s destination);
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CopyToMachine(in s name,
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in s source,
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in s destination);
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OpenMachineRootDirectory(in s name,
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out h fd);
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GetMachineUIDShift(in s name,
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out u shift);
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RemoveImage(in s name);
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RenameImage(in s name,
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in s new_name);
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CloneImage(in s name,
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in s new_name,
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in b read_only);
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MarkImageReadOnly(in s name,
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in b read_only);
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GetImageHostname(in s name,
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out s hostname);
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GetImageMachineID(in s name,
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out ay id);
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GetImageMachineInfo(in s name,
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out a{ss} machine_info);
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GetImageOSRelease(in s name,
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out a{ss} os_release);
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SetPoolLimit(in t size);
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SetImageLimit(in s name,
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in t size);
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CleanPool(in s mode,
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out a(st) images);
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MapFromMachineUser(in s name,
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in u uid_inner,
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out u uid_outer);
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MapToMachineUser(in u uid_outer,
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out s machine_name,
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out o machine_path,
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out u uid_inner);
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MapFromMachineGroup(in s name,
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in u gid_inner,
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out u gid_outer);
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MapToMachineGroup(in u gid_outer,
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out s machine_name,
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out o machine_path,
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out u gid_inner);
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signals:
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MachineNew(s machine,
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o path);
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MachineRemoved(s machine,
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o path);
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properties:
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@org.freedesktop.DBus.Property.EmitsChangedSignal("false")
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readonly s PoolPath = '...';
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@org.freedesktop.DBus.Property.EmitsChangedSignal("false")
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readonly t PoolUsage = ...;
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@org.freedesktop.DBus.Property.EmitsChangedSignal("false")
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readonly t PoolLimit = ...;
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};
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interface org.freedesktop.DBus.Peer { ... };
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interface org.freedesktop.DBus.Introspectable { ... };
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interface org.freedesktop.DBus.Properties { ... };
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};
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</programlisting>
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<!--method UnregisterMachine is not documented!-->
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<!--method OpenMachineRootDirectory is not documented!-->
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<!--method GetMachineUIDShift is not documented!-->
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<!--method GetImageHostname is not documented!-->
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<!--method GetImageMachineID is not documented!-->
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<!--method GetImageMachineInfo is not documented!-->
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<!--method GetImageOSRelease is not documented!-->
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<!--method CleanPool is not documented!-->
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<!--Autogenerated cross-references for systemd.directives, do not edit-->
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<variablelist class="dbus-interface" generated="True" extra-ref="org.freedesktop.machine1.Manager"/>
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<variablelist class="dbus-interface" generated="True" extra-ref="org.freedesktop.machine1.Manager"/>
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<variablelist class="dbus-method" generated="True" extra-ref="GetMachine()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="GetImage()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="GetMachineByPID()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="ListMachines()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="ListImages()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="CreateMachine()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="CreateMachineWithNetwork()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="RegisterMachine()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="RegisterMachineWithNetwork()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="UnregisterMachine()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="TerminateMachine()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="KillMachine()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="GetMachineAddresses()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="GetMachineOSRelease()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="OpenMachinePTY()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="OpenMachineLogin()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="OpenMachineShell()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="BindMountMachine()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="CopyFromMachine()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="CopyToMachine()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="OpenMachineRootDirectory()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="GetMachineUIDShift()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="RemoveImage()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="RenameImage()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="CloneImage()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="MarkImageReadOnly()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="GetImageHostname()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="GetImageMachineID()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="GetImageMachineInfo()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="GetImageOSRelease()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="SetPoolLimit()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="SetImageLimit()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="CleanPool()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="MapFromMachineUser()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="MapToMachineUser()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="MapFromMachineGroup()"/>
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<variablelist class="dbus-method" generated="True" extra-ref="MapToMachineGroup()"/>
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<variablelist class="dbus-signal" generated="True" extra-ref="MachineNew"/>
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<variablelist class="dbus-signal" generated="True" extra-ref="MachineRemoved"/>
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<variablelist class="dbus-property" generated="True" extra-ref="PoolPath"/>
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<variablelist class="dbus-property" generated="True" extra-ref="PoolUsage"/>
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<variablelist class="dbus-property" generated="True" extra-ref="PoolLimit"/>
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<!--End of Autogenerated section-->
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<refsect2>
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<title>Methods</title>
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<para><function>GetMachine()</function> may be used to get the machine object path for the machine with
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the specified name. Similarly, <function>GetMachineByPID()</function> gets the machine object the
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specified PID belongs to if there is any.</para>
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<para><function>GetImage()</function> may be used to get the image object path of the image with the
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specified name.</para>
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<para><function>ListMachines()</function> returns an array of all currently registered machines. The
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structures in the array consist of the following fields: machine name, machine class, an identifier for
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the service that registered the machine and the machine object path.</para>
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<para><function>ListImages()</function> returns an array of all currently known images. The
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structures in the array consist of the following fields: image name, type, read-only flag, creation
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time, modification time, current disk space, and image object path.</para>
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<para><function>CreateMachine()</function> may be used to register a new virtual machine or container
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with <command>systemd-machined</command>, creating a scope unit for it. It accepts the following arguments: a
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machine name chosen by the registrar, an optional UUID as a 32 byte array, a string that identifies the
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service that registers the machine, a class string, the PID of the leader process of the machine, an
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optional root directory of the container, and an array of additional properties to use for the scope
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registration. The virtual machine name must be suitable as a hostname, and hence should follow the usual
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DNS hostname rules, as well as the Linux hostname restrictions. Specifically, only 7 bit ASCII is
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permitted, a maximum length of 64 characters is enforced, only characters from the set
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<literal>a-zA-Z0-9-_.</literal> are allowed, the name may not begin with a dot, and it may not contain
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two dots immediately following each other. Container and VM managers should ideally use the hostname
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used internally in the machine for this parameter. This recommendation is made in order to make the
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machine name naturally resolvable using
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<citerefentry><refentrytitle>nss-mymachines</refentrytitle><manvolnum>8</manvolnum></citerefentry>. If
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a container manager needs to embed characters outside of the indicated range, escaping is required,
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possibly using <literal>_</literal> as the escape character. Another (somewhat natural) option would be
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to utilize Internet IDNA encoding. The UUID is passed as a 32 byte array or, if no suitable UUID is
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available, an empty array (zero length) or zeroed out array shall be passed. The UUID should identify
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the virtual machine/container uniquely and should ideally be the same UUID that
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<filename>/etc/machine-id</filename> in the VM/container is initialized from. The service string can be
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free-form, but it is recommended to pass a short lowercase identifier like
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<literal>systemd-nspawn</literal>, <literal>libvirt-lxc</literal> or similar. The class string should
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be either <literal>container</literal> or <literal>vm</literal> indicating whether the machine to
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register is of the respective class. The leader PID should be the host PID of the init process of the
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container or the encapsulating process of the VM. If the root directory of the container is known and
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available in the host's hierarchy, it should be passed. Otherwise, pass the empty string instead. Finally, the
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scope properties are passed as array in the same way as to PID1's
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<function>StartTransientUnit()</function> method. Calling this method will internally register a transient scope
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unit for the calling client (utilizing the passed scope_properties) and move the leader PID into
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it. The method returns an object path for the registered machine object that implements the
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<interfacename>org.freedesktop.machine1.Machine</interfacename> interface (see below). Also see the
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<ulink url="https://www.freedesktop.org/wiki/Software/systemd/ControlGroupInterface/">New Control Group
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Interfaces</ulink> for details about scope units and how to alter resource control settings on the
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created machine at runtime.</para>
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<para><function>RegisterMachine()</function> is similar to <function>CreateMachine()</function>.
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However, it only registers a machine and does not create a scope unit for it. Instead, the caller's unit is
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registered. We recommend to only use this method for container or VM managers that are run
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multiple times, one instance for each container/VM they manage, and are invoked as system
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services.</para>
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<para><function>CreateMachineWithNetwork()</function> and
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<function>RegisterMachineWithNetwork()</function> are similar to <function>CreateMachine()</function>
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and <function>RegisterMachine()</function> but take an extra argument: an array of network interface
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indices that point towards the virtual machine or container. The interface indices should reference one
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or more network interfaces on the host that can be used to communicate with the guest. Commonly, the
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passed interface index refers to the host side of a "veth" link (in case of containers), a
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"tun"/"tap" link (in case of VMs), or the host side of a bridge interface that bridges access to the
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VM/container interfaces. Specifying this information is useful to enable support for link-local IPv6
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communication to the machines since the scope field of sockaddr_in6 can be initialized by the
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specified ifindex.
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<citerefentry><refentrytitle>nss-mymachines</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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makes use of this information.</para>
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<para><function>KillMachine()</function> sends a UNIX signal to the machine's processes. As its arguments, it takes a
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machine name (as originally passed to <function>CreateMachine()</function> or returned by
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<function>ListMachines()</function>), an identifier that specifies what precisely to send the signal to (either
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<literal>leader</literal> or <literal>all</literal>), and a numeric UNIX signal integer.</para>
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<para><function>TerminateMachine()</function> terminates a virtual machine, killing its processes. It
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takes a machine name as its only argument.</para>
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<para><function>GetMachineAddresses()</function> retrieves the IP addresses of a container. This method
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returns an array of pairs consisting of an address family specifier (<constant>AF_INET</constant> or
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<constant>AF_INET6</constant>) and a byte array containing the addresses. This is only supported for
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containers that make use of network namespacing.</para>
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<para><function>GetMachineOSRelease()</function> retrieves the OS release information of a
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container. This method returns an array of key value pairs read from the
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<citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry> file in
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the container and is useful to identify the operating system used in a container.</para>
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<para><function>OpenMachinePTY()</function> allocates a pseudo TTY in the container and returns a file
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descriptor and its path. This is equivalent to transitioning into the container and invoking
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<citerefentry project="man-pages"><refentrytitle>posix_openpt</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
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</para>
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<para><function>OpenMachineLogin()</function> allocates a pseudo TTY in the container and ensures that
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a getty login prompt of the container is running on the other end. It returns the file descriptor of
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the PTY and the PTY path. This is useful for acquiring a pty with a login prompt from the
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container.</para>
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<para><function>OpenMachineShell()</function> allocates a pseudo TTY in the container, as the specified
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user, and invokes the executable at the specified path with a list of arguments (starting from
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argv[0]) and an environment block. It then returns the file descriptor of the PTY and the PTY
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path.</para>
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<para><function>BindMountMachine()</function> bind mounts a file or directory from the host into the
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container. Its arguments consist of a machine name, the source directory on the host, the destination directory in the
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container, and two booleans, one indicating whether the bind mount shall be
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read-only, the other indicating whether the destination mount point shall be created first, if it is
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missing.</para>
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<para><function>CopyFromMachine()</function> copies files or directories from a container into the
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host. It takes a container name, a source directory in the container and a destination directory on the
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host as arguments. <function>CopyToMachine()</function> does the opposite and copies files from a source
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directory on the host into a destination directory in the container.</para>
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<para><function>RemoveImage()</function> removes the image with the specified name.</para>
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<para><function>RenameImage()</function> renames the specified image.</para>
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<para><function>CloneImage()</function> clones the specified image under a new name. It also takes a
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boolean argument indicating whether the resulting image shall be read-only or not.</para>
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<para><function>MarkImageReadOnly()</function> toggles the read-only flag of an image.</para>
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<para><function>SetPoolLimit()</function> sets an overall quota limit on the pool of images.</para>
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<para><function>SetImageLimit()</function> sets a per-image quota limit.</para>
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<para><function>MapFromMachineUser()</function>, <function>MapToMachineUser()</function>,
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<function>MapFromMachineGroup()</function>, and <function>MapToMachineGroup()</function> may be used to map
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UIDs/GIDs from the host user namespace to a container user namespace or vice versa.</para>
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</refsect2>
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<refsect2>
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<title>Signals</title>
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<para><function>MachineNew</function> and <function>MachineRemoved</function> are sent whenever a new
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machine is registered or removed. These signals carry the machine name and the object path to the corresponding
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<interfacename>org.freedesktop.machine1.Machine</interfacename> interface (see below).</para>
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</refsect2>
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<refsect2>
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<title>Properties</title>
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<para><varname>PoolPath</varname> specifies the file system path where images are written to.</para>
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<para><varname>PoolUsage</varname> specifies the current usage size of the image pool in bytes.</para>
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<para><varname>PoolLimit</varname> specifies the size limit of the image pool in bytes.</para>
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</refsect2>
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</refsect1>
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<refsect1>
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<title>Machine Objects</title>
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<programlisting executable="systemd-machined" node="/org/freedesktop/machine1/machine/rawhide" interface="org.freedesktop.machine1.Machine">
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node /org/freedesktop/machine1/machine/rawhide {
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interface org.freedesktop.machine1.Machine {
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methods:
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Terminate();
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Kill(in s who,
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in i signal);
|
|
GetAddresses(out a(iay) addresses);
|
|
GetOSRelease(out a{ss} fields);
|
|
GetUIDShift(out u shift);
|
|
OpenPTY(out h pty,
|
|
out s pty_path);
|
|
OpenLogin(out h pty,
|
|
out s pty_path);
|
|
OpenShell(in s user,
|
|
in s path,
|
|
in as args,
|
|
in as environment,
|
|
out h pty,
|
|
out s pty_path);
|
|
BindMount(in s source,
|
|
in s destination,
|
|
in b read_only,
|
|
in b mkdir);
|
|
CopyFrom(in s source,
|
|
in s destination);
|
|
CopyTo(in s source,
|
|
in s destination);
|
|
OpenRootDirectory(out h fd);
|
|
properties:
|
|
@org.freedesktop.DBus.Property.EmitsChangedSignal("const")
|
|
readonly s Name = '...';
|
|
@org.freedesktop.DBus.Property.EmitsChangedSignal("const")
|
|
readonly ay Id = [...];
|
|
@org.freedesktop.DBus.Property.EmitsChangedSignal("const")
|
|
readonly t Timestamp = ...;
|
|
@org.freedesktop.DBus.Property.EmitsChangedSignal("const")
|
|
readonly t TimestampMonotonic = ...;
|
|
@org.freedesktop.DBus.Property.EmitsChangedSignal("const")
|
|
readonly s Service = '...';
|
|
@org.freedesktop.DBus.Property.EmitsChangedSignal("const")
|
|
readonly s Unit = '...';
|
|
@org.freedesktop.DBus.Property.EmitsChangedSignal("const")
|
|
readonly u Leader = ...;
|
|
@org.freedesktop.DBus.Property.EmitsChangedSignal("const")
|
|
readonly s Class = '...';
|
|
@org.freedesktop.DBus.Property.EmitsChangedSignal("const")
|
|
readonly s RootDirectory = '...';
|
|
@org.freedesktop.DBus.Property.EmitsChangedSignal("const")
|
|
readonly ai NetworkInterfaces = [...];
|
|
@org.freedesktop.DBus.Property.EmitsChangedSignal("false")
|
|
readonly s State = '...';
|
|
};
|
|
interface org.freedesktop.DBus.Peer { ... };
|
|
interface org.freedesktop.DBus.Introspectable { ... };
|
|
interface org.freedesktop.DBus.Properties { ... };
|
|
};
|
|
</programlisting>
|
|
|
|
<!--method GetUIDShift is not documented!-->
|
|
|
|
<!--method OpenPTY is not documented!-->
|
|
|
|
<!--method OpenLogin is not documented!-->
|
|
|
|
<!--method OpenShell is not documented!-->
|
|
|
|
<!--method BindMount is not documented!-->
|
|
|
|
<!--method CopyFrom is not documented!-->
|
|
|
|
<!--method CopyTo is not documented!-->
|
|
|
|
<!--method OpenRootDirectory is not documented!-->
|
|
|
|
<!--Autogenerated cross-references for systemd.directives, do not edit-->
|
|
|
|
<variablelist class="dbus-interface" generated="True" extra-ref="org.freedesktop.machine1.Machine"/>
|
|
|
|
<variablelist class="dbus-interface" generated="True" extra-ref="org.freedesktop.machine1.Machine"/>
|
|
|
|
<variablelist class="dbus-method" generated="True" extra-ref="Terminate()"/>
|
|
|
|
<variablelist class="dbus-method" generated="True" extra-ref="Kill()"/>
|
|
|
|
<variablelist class="dbus-method" generated="True" extra-ref="GetAddresses()"/>
|
|
|
|
<variablelist class="dbus-method" generated="True" extra-ref="GetOSRelease()"/>
|
|
|
|
<variablelist class="dbus-method" generated="True" extra-ref="GetUIDShift()"/>
|
|
|
|
<variablelist class="dbus-method" generated="True" extra-ref="OpenPTY()"/>
|
|
|
|
<variablelist class="dbus-method" generated="True" extra-ref="OpenLogin()"/>
|
|
|
|
<variablelist class="dbus-method" generated="True" extra-ref="OpenShell()"/>
|
|
|
|
<variablelist class="dbus-method" generated="True" extra-ref="BindMount()"/>
|
|
|
|
<variablelist class="dbus-method" generated="True" extra-ref="CopyFrom()"/>
|
|
|
|
<variablelist class="dbus-method" generated="True" extra-ref="CopyTo()"/>
|
|
|
|
<variablelist class="dbus-method" generated="True" extra-ref="OpenRootDirectory()"/>
|
|
|
|
<variablelist class="dbus-property" generated="True" extra-ref="Name"/>
|
|
|
|
<variablelist class="dbus-property" generated="True" extra-ref="Id"/>
|
|
|
|
<variablelist class="dbus-property" generated="True" extra-ref="Timestamp"/>
|
|
|
|
<variablelist class="dbus-property" generated="True" extra-ref="TimestampMonotonic"/>
|
|
|
|
<variablelist class="dbus-property" generated="True" extra-ref="Service"/>
|
|
|
|
<variablelist class="dbus-property" generated="True" extra-ref="Unit"/>
|
|
|
|
<variablelist class="dbus-property" generated="True" extra-ref="Leader"/>
|
|
|
|
<variablelist class="dbus-property" generated="True" extra-ref="Class"/>
|
|
|
|
<variablelist class="dbus-property" generated="True" extra-ref="RootDirectory"/>
|
|
|
|
<variablelist class="dbus-property" generated="True" extra-ref="NetworkInterfaces"/>
|
|
|
|
<variablelist class="dbus-property" generated="True" extra-ref="State"/>
|
|
|
|
<!--End of Autogenerated section-->
|
|
|
|
<refsect2>
|
|
<title>Methods</title>
|
|
|
|
<para><function>Terminate()</function> and <function>Kill()</function> terminate/kill the machine. These methods
|
|
take the same arguments as <function>TerminateMachine()</function> and
|
|
<function>KillMachine()</function> on the Manager interface, respectively.</para>
|
|
|
|
<para><function>GetAddresses()</function> and <function>GetOSRelease()</function> get the IP address and OS
|
|
release information from the machine. These methods take the same arguments as
|
|
<function>GetMachineAddresses()</function> and <function>GetMachineOSRelease()</function> of the
|
|
Manager interface, respectively.</para>
|
|
</refsect2>
|
|
|
|
<refsect2>
|
|
<title>Properties</title>
|
|
|
|
<para><varname>Name</varname> is the machine name as it was passed in during registration with
|
|
<function>CreateMachine()</function> on the manager object.</para>
|
|
|
|
<para><varname>Id</varname> is the machine UUID.</para>
|
|
|
|
<para><varname>Timestamp</varname> and <varname>TimestampMonotonic</varname> are the realtime and
|
|
monotonic timestamps when the virtual machines where created in microseconds since the epoch.</para>
|
|
|
|
<para><varname>Service</varname> contains a short string identifying the registering service as passed
|
|
in during registration of the machine.</para>
|
|
|
|
<para><varname>Unit</varname> is the systemd scope or service unit name for the machine.</para>
|
|
|
|
<para><varname>Leader</varname> is the PID of the leader process of the machine.</para>
|
|
|
|
<para><varname>Class</varname> is the class of the machine and is either the string "vm" (for real VMs
|
|
based on virtualized hardware) or "container" (for light-weight userspace virtualization sharing the
|
|
same kernel as the host).</para>
|
|
|
|
<para><varname>RootDirectory</varname> is the root directory of the container if it is known and
|
|
applicable or the empty string.</para>
|
|
|
|
<para><varname>NetworkInterfaces</varname> contains an array of network interface indices that point
|
|
towards the container, the VM or the host. For details about this information see the description of
|
|
<function>CreateMachineWithNetwork()</function> above.</para>
|
|
|
|
<para><varname>State</varname> is the state of the machine and is one of <literal>opening</literal>,
|
|
<literal>running</literal>, or <literal>closing</literal>. Note that the state machine is not considered
|
|
part of the API and states might be removed or added without this being considered API breakage.
|
|
</para>
|
|
</refsect2>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Examples</title>
|
|
|
|
<example>
|
|
<title>Introspect <interfacename>org.freedesktop.machine1.Manager</interfacename> on the bus</title>
|
|
|
|
<programlisting>
|
|
$ gdbus introspect --system \
|
|
--dest org.freedesktop.machine1 \
|
|
--object-path /org/freedesktop/machine1
|
|
</programlisting>
|
|
</example>
|
|
|
|
<example>
|
|
<title>Introspect <interfacename>org.freedesktop.machine1.Machine</interfacename> on the bus</title>
|
|
|
|
<programlisting>
|
|
$ gdbus introspect --system \
|
|
--dest org.freedesktop.machine1 \
|
|
--object-path /org/freedesktop/machine1/machine/rawhide
|
|
</programlisting>
|
|
</example>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Versioning</title>
|
|
|
|
<para>These D-Bus interfaces follow <ulink url="http://0pointer.de/blog/projects/versioning-dbus.html">
|
|
the usual interface versioning guidelines</ulink>.</para>
|
|
</refsect1>
|
|
</refentry>
|