2 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" >
4 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
6 <refentry id="org.freedesktop.machine1" conditional='ENABLE_MACHINED'
7 xmlns:xi="http://www.w3.org/2001/XInclude">
9 <title>org.freedesktop.machine1</title>
10 <productname>systemd</productname>
14 <refentrytitle>org.freedesktop.machine1</refentrytitle>
15 <manvolnum>5</manvolnum>
19 <refname>org.freedesktop.machine1</refname>
20 <refpurpose>The D-Bus interface of systemd-machined</refpurpose>
24 <title>Introduction</title>
27 <citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
28 is a system service that keeps track of locally running virtual machines and containers.
29 This page describes the D-Bus interface.</para>
33 <title>The Manager Object</title>
35 <para>The service exposes the following interfaces on the Manager object on the bus:</para>
37 <programlisting executable="systemd-machined" node="/org/freedesktop/machine1" interface="org.freedesktop.machine1.Manager">
38 node /org/freedesktop/machine1 {
39 interface org.freedesktop.machine1.Manager {
45 GetMachineByPID(in u pid,
47 ListMachines(out a(ssso) machines);
48 ListImages(out a(ssbttto) images);
49 @org.freedesktop.systemd1.Privileged("true")
50 CreateMachine(in s name,
56 in a(sv) scope_properties,
58 @org.freedesktop.systemd1.Privileged("true")
59 CreateMachineWithNetwork(in s name,
66 in a(sv) scope_properties,
68 @org.freedesktop.systemd1.Privileged("true")
69 RegisterMachine(in s name,
76 @org.freedesktop.systemd1.Privileged("true")
77 RegisterMachineWithNetwork(in s name,
85 UnregisterMachine(in s name);
86 TerminateMachine(in s id);
87 KillMachine(in s name,
90 GetMachineAddresses(in s name,
91 out a(iay) addresses);
92 GetMachineSSHInfo(in s name,
94 out s ssh_private_key_path);
95 GetMachineOSRelease(in s name,
97 @org.freedesktop.systemd1.Privileged("true")
98 OpenMachinePTY(in s name,
101 OpenMachineLogin(in s name,
104 OpenMachineShell(in s name,
111 BindMountMachine(in s name,
116 CopyFromMachine(in s name,
119 CopyToMachine(in s name,
122 CopyFromMachineWithFlags(in s name,
126 CopyToMachineWithFlags(in s name,
130 OpenMachineRootDirectory(in s name,
132 GetMachineUIDShift(in s name,
134 RemoveImage(in s name);
135 RenameImage(in s name,
137 CloneImage(in s name,
140 MarkImageReadOnly(in s name,
142 GetImageHostname(in s name,
144 GetImageMachineID(in s name,
146 GetImageMachineInfo(in s name,
147 out a{ss} machine_info);
148 GetImageOSRelease(in s name,
149 out a{ss} os_release);
150 SetPoolLimit(in t size);
151 SetImageLimit(in s name,
155 MapFromMachineUser(in s name,
158 MapToMachineUser(in u uid_outer,
162 MapFromMachineGroup(in s name,
165 MapToMachineGroup(in u gid_outer,
170 MachineNew(s machine,
172 MachineRemoved(s machine,
175 @org.freedesktop.DBus.Property.EmitsChangedSignal("false")
176 readonly s PoolPath = '...';
177 @org.freedesktop.DBus.Property.EmitsChangedSignal("false")
178 readonly t PoolUsage = ...;
179 @org.freedesktop.DBus.Property.EmitsChangedSignal("false")
180 readonly t PoolLimit = ...;
182 interface org.freedesktop.DBus.Peer { ... };
183 interface org.freedesktop.DBus.Introspectable { ... };
184 interface org.freedesktop.DBus.Properties { ... };
188 <!--method UnregisterMachine is not documented!-->
190 <!--method OpenMachineRootDirectory is not documented!-->
192 <!--method GetMachineUIDShift is not documented!-->
194 <!--method GetImageHostname is not documented!-->
196 <!--method GetImageMachineID is not documented!-->
198 <!--method GetImageMachineInfo is not documented!-->
200 <!--method GetImageOSRelease is not documented!-->
202 <!--method CleanPool is not documented!-->
204 <!--Autogenerated cross-references for systemd.directives, do not edit-->
206 <variablelist class="dbus-interface" generated="True" extra-ref="org.freedesktop.machine1.Manager"/>
208 <variablelist class="dbus-interface" generated="True" extra-ref="org.freedesktop.machine1.Manager"/>
210 <variablelist class="dbus-method" generated="True" extra-ref="GetMachine()"/>
212 <variablelist class="dbus-method" generated="True" extra-ref="GetImage()"/>
214 <variablelist class="dbus-method" generated="True" extra-ref="GetMachineByPID()"/>
216 <variablelist class="dbus-method" generated="True" extra-ref="ListMachines()"/>
218 <variablelist class="dbus-method" generated="True" extra-ref="ListImages()"/>
220 <variablelist class="dbus-method" generated="True" extra-ref="CreateMachine()"/>
222 <variablelist class="dbus-method" generated="True" extra-ref="CreateMachineWithNetwork()"/>
224 <variablelist class="dbus-method" generated="True" extra-ref="RegisterMachine()"/>
226 <variablelist class="dbus-method" generated="True" extra-ref="RegisterMachineWithNetwork()"/>
228 <variablelist class="dbus-method" generated="True" extra-ref="UnregisterMachine()"/>
230 <variablelist class="dbus-method" generated="True" extra-ref="TerminateMachine()"/>
232 <variablelist class="dbus-method" generated="True" extra-ref="KillMachine()"/>
234 <variablelist class="dbus-method" generated="True" extra-ref="GetMachineAddresses()"/>
236 <variablelist class="dbus-method" generated="True" extra-ref="GetMachineSSHInfo()"/>
238 <variablelist class="dbus-method" generated="True" extra-ref="GetMachineOSRelease()"/>
240 <variablelist class="dbus-method" generated="True" extra-ref="OpenMachinePTY()"/>
242 <variablelist class="dbus-method" generated="True" extra-ref="OpenMachineLogin()"/>
244 <variablelist class="dbus-method" generated="True" extra-ref="OpenMachineShell()"/>
246 <variablelist class="dbus-method" generated="True" extra-ref="BindMountMachine()"/>
248 <variablelist class="dbus-method" generated="True" extra-ref="CopyFromMachine()"/>
250 <variablelist class="dbus-method" generated="True" extra-ref="CopyToMachine()"/>
252 <variablelist class="dbus-method" generated="True" extra-ref="CopyFromMachineWithFlags()"/>
254 <variablelist class="dbus-method" generated="True" extra-ref="CopyToMachineWithFlags()"/>
256 <variablelist class="dbus-method" generated="True" extra-ref="OpenMachineRootDirectory()"/>
258 <variablelist class="dbus-method" generated="True" extra-ref="GetMachineUIDShift()"/>
260 <variablelist class="dbus-method" generated="True" extra-ref="RemoveImage()"/>
262 <variablelist class="dbus-method" generated="True" extra-ref="RenameImage()"/>
264 <variablelist class="dbus-method" generated="True" extra-ref="CloneImage()"/>
266 <variablelist class="dbus-method" generated="True" extra-ref="MarkImageReadOnly()"/>
268 <variablelist class="dbus-method" generated="True" extra-ref="GetImageHostname()"/>
270 <variablelist class="dbus-method" generated="True" extra-ref="GetImageMachineID()"/>
272 <variablelist class="dbus-method" generated="True" extra-ref="GetImageMachineInfo()"/>
274 <variablelist class="dbus-method" generated="True" extra-ref="GetImageOSRelease()"/>
276 <variablelist class="dbus-method" generated="True" extra-ref="SetPoolLimit()"/>
278 <variablelist class="dbus-method" generated="True" extra-ref="SetImageLimit()"/>
280 <variablelist class="dbus-method" generated="True" extra-ref="CleanPool()"/>
282 <variablelist class="dbus-method" generated="True" extra-ref="MapFromMachineUser()"/>
284 <variablelist class="dbus-method" generated="True" extra-ref="MapToMachineUser()"/>
286 <variablelist class="dbus-method" generated="True" extra-ref="MapFromMachineGroup()"/>
288 <variablelist class="dbus-method" generated="True" extra-ref="MapToMachineGroup()"/>
290 <variablelist class="dbus-signal" generated="True" extra-ref="MachineNew()"/>
292 <variablelist class="dbus-signal" generated="True" extra-ref="MachineRemoved()"/>
294 <variablelist class="dbus-property" generated="True" extra-ref="PoolPath"/>
296 <variablelist class="dbus-property" generated="True" extra-ref="PoolUsage"/>
298 <variablelist class="dbus-property" generated="True" extra-ref="PoolLimit"/>
300 <!--End of Autogenerated section-->
303 <title>Methods</title>
305 <para><function>GetMachine()</function> may be used to get the machine object path for the machine with
306 the specified name. Similarly, <function>GetMachineByPID()</function> gets the machine object the
307 specified PID belongs to if there is any.</para>
309 <para><function>GetImage()</function> may be used to get the image object path of the image with the
310 specified name.</para>
312 <para><function>ListMachines()</function> returns an array of all currently registered machines. The
313 structures in the array consist of the following fields: machine name, machine class, an identifier for
314 the service that registered the machine and the machine object path.</para>
316 <para><function>ListImages()</function> returns an array of all currently known images. The
317 structures in the array consist of the following fields: image name, type, read-only flag, creation
318 time, modification time, current disk space, and image object path.</para>
320 <para><function>CreateMachine()</function> may be used to register a new virtual machine or container
321 with <command>systemd-machined</command>, creating a scope unit for it. It accepts the following arguments: a
322 machine name chosen by the registrar, an optional UUID as a 32 byte array, a string that identifies the
323 service that registers the machine, a class string, the PID of the leader process of the machine, an
324 optional root directory of the container, and an array of additional properties to use for the scope
325 registration. The virtual machine name must be suitable as a hostname, and hence should follow the usual
326 DNS hostname rules, as well as the Linux hostname restrictions. Specifically, only 7 bit ASCII is
327 permitted, a maximum length of 64 characters is enforced, only characters from the set
328 <literal>a-zA-Z0-9-_.</literal> are allowed, the name may not begin with a dot, and it may not contain
329 two dots immediately following each other. Container and VM managers should ideally use the hostname
330 used internally in the machine for this parameter. This recommendation is made in order to make the
331 machine name naturally resolvable using
332 <citerefentry><refentrytitle>nss-mymachines</refentrytitle><manvolnum>8</manvolnum></citerefentry>. If
333 a container manager needs to embed characters outside of the indicated range, escaping is required,
334 possibly using <literal>_</literal> as the escape character. Another (somewhat natural) option would be
335 to utilize Internet IDNA encoding. The UUID is passed as a 32 byte array or, if no suitable UUID is
336 available, an empty array (zero length) or zeroed out array shall be passed. The UUID should identify
337 the virtual machine/container uniquely and should ideally be the same UUID that
338 <filename>/etc/machine-id</filename> in the VM/container is initialized from. The service string can be
339 free-form, but it is recommended to pass a short lowercase identifier like
340 <literal>systemd-nspawn</literal>, <literal>libvirt-lxc</literal> or similar. The class string should
341 be either <literal>container</literal> or <literal>vm</literal> indicating whether the machine to
342 register is of the respective class. The leader PID should be the host PID of the init process of the
343 container or the encapsulating process of the VM. If the root directory of the container is known and
344 available in the host's hierarchy, it should be passed. Otherwise, pass the empty string instead. Finally, the
345 scope properties are passed as array in the same way as to PID1's
346 <function>StartTransientUnit()</function> method. Calling this method will internally register a transient scope
347 unit for the calling client (utilizing the passed scope_properties) and move the leader PID into
348 it. The method returns an object path for the registered machine object that implements the
349 <interfacename>org.freedesktop.machine1.Machine</interfacename> interface (see below). Also see the
350 <ulink url="https://systemd.io/CONTROL_GROUP_INTERFACE">New Control Group
351 Interfaces</ulink> for details about scope units and how to alter resource control settings on the
352 created machine at runtime.</para>
354 <para><function>RegisterMachine()</function> is similar to <function>CreateMachine()</function>.
355 However, it only registers a machine and does not create a scope unit for it. Instead, the caller's unit is
356 registered. We recommend to only use this method for container or VM managers that are run
357 multiple times, one instance for each container/VM they manage, and are invoked as system
360 <para><function>CreateMachineWithNetwork()</function> and
361 <function>RegisterMachineWithNetwork()</function> are similar to <function>CreateMachine()</function>
362 and <function>RegisterMachine()</function> but take an extra argument: an array of network interface
363 indices that point towards the virtual machine or container. The interface indices should reference one
364 or more network interfaces on the host that can be used to communicate with the guest. Commonly, the
365 passed interface index refers to the host side of a "veth" link (in case of containers), a
366 "tun"/"tap" link (in case of VMs), or the host side of a bridge interface that bridges access to the
367 VM/container interfaces. Specifying this information is useful to enable support for link-local IPv6
368 communication to the machines since the scope field of sockaddr_in6 can be initialized by the
370 <citerefentry><refentrytitle>nss-mymachines</refentrytitle><manvolnum>8</manvolnum></citerefentry>
371 makes use of this information.</para>
373 <para><function>KillMachine()</function> sends a UNIX signal to the machine's processes. As its arguments, it takes a
374 machine name (as originally passed to <function>CreateMachine()</function> or returned by
375 <function>ListMachines()</function>), an identifier that specifies what precisely to send the signal to (either
376 <literal>leader</literal> or <literal>all</literal>), and a numeric UNIX signal integer.</para>
378 <para><function>TerminateMachine()</function> terminates a virtual machine, killing its processes. It
379 takes a machine name as its only argument.</para>
381 <para><function>GetMachineAddresses()</function> retrieves the IP addresses of a container. This method
382 returns an array of pairs consisting of an address family specifier (<constant>AF_INET</constant> or
383 <constant>AF_INET6</constant>) and a byte array containing the addresses. This is only supported for
384 containers that make use of network namespacing.</para>
386 <para><function>GetMachineSSHInfo()</function> retrieves the SSH information of a machine. This method
387 returns two strings, the SSH address which can be used to tell SSH where to connect, and the path
388 to the SSH private key required for the connection to succeed.</para>
390 <para><function>GetMachineOSRelease()</function> retrieves the OS release information of a
391 container. This method returns an array of key value pairs read from the
392 <citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry> file in
393 the container and is useful to identify the operating system used in a container.</para>
395 <para><function>OpenMachinePTY()</function> allocates a pseudo TTY in the container and returns a file
396 descriptor and its path. This is equivalent to transitioning into the container and invoking
397 <citerefentry project="man-pages"><refentrytitle>posix_openpt</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
400 <para><function>OpenMachineLogin()</function> allocates a pseudo TTY in the container and ensures that
401 a getty login prompt of the container is running on the other end. It returns the file descriptor of
402 the PTY and the PTY path. This is useful for acquiring a pty with a login prompt from the
405 <para><function>OpenMachineShell()</function> allocates a pseudo TTY in the container, as the specified
406 user, and invokes the executable at the specified path with a list of arguments (starting from
407 argv[0]) and an environment block. It then returns the file descriptor of the PTY and the PTY
410 <para><function>BindMountMachine()</function> bind mounts a file or directory from the host into the
411 container. Its arguments consist of a machine name, the source directory on the host, the destination directory in the
412 container, and two booleans, one indicating whether the bind mount shall be
413 read-only, the other indicating whether the destination mount point shall be created first, if it is
416 <para><function>CopyFromMachine()</function> copies files or directories from a container into the
417 host. It takes a container name, a source directory in the container and a destination directory on the
419 <function>CopyToMachine()</function> does the opposite and copies files from a source
420 directory on the host into a destination directory in the container.
421 <function>CopyFromMachineWithFlags()</function> and <function>CopyToMachineWithFlags()</function> do the same but take an additional flags argument.</para>
423 <para><function>RemoveImage()</function> removes the image with the specified name.</para>
425 <para><function>RenameImage()</function> renames the specified image.</para>
427 <para><function>CloneImage()</function> clones the specified image under a new name. It also takes a
428 boolean argument indicating whether the resulting image shall be read-only or not.</para>
430 <para><function>MarkImageReadOnly()</function> toggles the read-only flag of an image.</para>
432 <para><function>SetPoolLimit()</function> sets an overall quota limit on the pool of images.</para>
434 <para><function>SetImageLimit()</function> sets a per-image quota limit.</para>
436 <para><function>MapFromMachineUser()</function>, <function>MapToMachineUser()</function>,
437 <function>MapFromMachineGroup()</function>, and <function>MapToMachineGroup()</function> may be used to map
438 UIDs/GIDs from the host user namespace to a container user namespace or vice versa.</para>
442 <title>Signals</title>
444 <para><function>MachineNew()</function> and <function>MachineRemoved()</function> are sent whenever a new
445 machine is registered or removed. These signals carry the machine name and the object path to the corresponding
446 <interfacename>org.freedesktop.machine1.Machine</interfacename> interface (see below).</para>
450 <title>Properties</title>
452 <para><varname>PoolPath</varname> specifies the file system path where images are written to.</para>
454 <para><varname>PoolUsage</varname> specifies the current usage size of the image pool in bytes.</para>
456 <para><varname>PoolLimit</varname> specifies the size limit of the image pool in bytes.</para>
461 <title>Machine Objects</title>
463 <programlisting executable="systemd-machined" node="/org/freedesktop/machine1/machine/rawhide" interface="org.freedesktop.machine1.Machine">
464 node /org/freedesktop/machine1/machine/rawhide {
465 interface org.freedesktop.machine1.Machine {
470 GetAddresses(out a(iay) addresses);
471 GetSSHInfo(out s ssh_address,
472 out s ssh_private_key_path);
473 GetOSRelease(out a{ss} fields);
474 GetUIDShift(out u shift);
485 BindMount(in s source,
489 CopyFrom(in s source,
493 CopyFromWithFlags(in s source,
496 CopyToWithFlags(in s source,
499 OpenRootDirectory(out h fd);
501 @org.freedesktop.DBus.Property.EmitsChangedSignal("const")
502 readonly s Name = '...';
503 @org.freedesktop.DBus.Property.EmitsChangedSignal("const")
504 readonly ay Id = [...];
505 @org.freedesktop.DBus.Property.EmitsChangedSignal("const")
506 readonly t Timestamp = ...;
507 @org.freedesktop.DBus.Property.EmitsChangedSignal("const")
508 readonly t TimestampMonotonic = ...;
509 @org.freedesktop.DBus.Property.EmitsChangedSignal("const")
510 readonly s Service = '...';
511 @org.freedesktop.DBus.Property.EmitsChangedSignal("const")
512 readonly s Unit = '...';
513 @org.freedesktop.DBus.Property.EmitsChangedSignal("const")
514 readonly u Leader = ...;
515 @org.freedesktop.DBus.Property.EmitsChangedSignal("const")
516 readonly s Class = '...';
517 @org.freedesktop.DBus.Property.EmitsChangedSignal("const")
518 readonly s RootDirectory = '...';
519 @org.freedesktop.DBus.Property.EmitsChangedSignal("const")
520 readonly ai NetworkInterfaces = [...];
521 @org.freedesktop.DBus.Property.EmitsChangedSignal("const")
522 readonly u VSockCID = ...;
523 @org.freedesktop.DBus.Property.EmitsChangedSignal("const")
524 readonly s SSHAddress = '...';
525 @org.freedesktop.DBus.Property.EmitsChangedSignal("const")
526 readonly s SSHPrivateKeyPath = '...';
527 @org.freedesktop.DBus.Property.EmitsChangedSignal("false")
528 readonly s State = '...';
530 interface org.freedesktop.DBus.Peer { ... };
531 interface org.freedesktop.DBus.Introspectable { ... };
532 interface org.freedesktop.DBus.Properties { ... };
536 <!--method GetUIDShift is not documented!-->
538 <!--method OpenPTY is not documented!-->
540 <!--method OpenLogin is not documented!-->
542 <!--method OpenShell is not documented!-->
544 <!--method BindMount is not documented!-->
546 <!--method CopyFrom is not documented!-->
548 <!--method CopyTo is not documented!-->
550 <!--method CopyFromWithFlags is not documented!-->
552 <!--method CopyToWithFlags is not documented!-->
554 <!--method OpenRootDirectory is not documented!-->
556 <!--Autogenerated cross-references for systemd.directives, do not edit-->
558 <variablelist class="dbus-interface" generated="True" extra-ref="org.freedesktop.machine1.Machine"/>
560 <variablelist class="dbus-interface" generated="True" extra-ref="org.freedesktop.machine1.Machine"/>
562 <variablelist class="dbus-method" generated="True" extra-ref="Terminate()"/>
564 <variablelist class="dbus-method" generated="True" extra-ref="Kill()"/>
566 <variablelist class="dbus-method" generated="True" extra-ref="GetAddresses()"/>
568 <variablelist class="dbus-method" generated="True" extra-ref="GetSSHInfo()"/>
570 <variablelist class="dbus-method" generated="True" extra-ref="GetOSRelease()"/>
572 <variablelist class="dbus-method" generated="True" extra-ref="GetUIDShift()"/>
574 <variablelist class="dbus-method" generated="True" extra-ref="OpenPTY()"/>
576 <variablelist class="dbus-method" generated="True" extra-ref="OpenLogin()"/>
578 <variablelist class="dbus-method" generated="True" extra-ref="OpenShell()"/>
580 <variablelist class="dbus-method" generated="True" extra-ref="BindMount()"/>
582 <variablelist class="dbus-method" generated="True" extra-ref="CopyFrom()"/>
584 <variablelist class="dbus-method" generated="True" extra-ref="CopyTo()"/>
586 <variablelist class="dbus-method" generated="True" extra-ref="CopyFromWithFlags()"/>
588 <variablelist class="dbus-method" generated="True" extra-ref="CopyToWithFlags()"/>
590 <variablelist class="dbus-method" generated="True" extra-ref="OpenRootDirectory()"/>
592 <variablelist class="dbus-property" generated="True" extra-ref="Name"/>
594 <variablelist class="dbus-property" generated="True" extra-ref="Id"/>
596 <variablelist class="dbus-property" generated="True" extra-ref="Timestamp"/>
598 <variablelist class="dbus-property" generated="True" extra-ref="TimestampMonotonic"/>
600 <variablelist class="dbus-property" generated="True" extra-ref="Service"/>
602 <variablelist class="dbus-property" generated="True" extra-ref="Unit"/>
604 <variablelist class="dbus-property" generated="True" extra-ref="Leader"/>
606 <variablelist class="dbus-property" generated="True" extra-ref="Class"/>
608 <variablelist class="dbus-property" generated="True" extra-ref="RootDirectory"/>
610 <variablelist class="dbus-property" generated="True" extra-ref="NetworkInterfaces"/>
612 <variablelist class="dbus-property" generated="True" extra-ref="VSockCID"/>
614 <variablelist class="dbus-property" generated="True" extra-ref="SSHAddress"/>
616 <variablelist class="dbus-property" generated="True" extra-ref="SSHPrivateKeyPath"/>
618 <variablelist class="dbus-property" generated="True" extra-ref="State"/>
620 <!--End of Autogenerated section-->
623 <title>Methods</title>
625 <para><function>Terminate()</function> and <function>Kill()</function> terminate/kill the machine. These methods
626 take the same arguments as <function>TerminateMachine()</function> and
627 <function>KillMachine()</function> on the Manager interface, respectively.</para>
629 <para><function>GetAddresses()</function>, <function>GetSSHInfo()</function> and <function>GetOSRelease()</function> get the IP address,
630 SSH connection and OS release information from the machine. These methods take the same arguments as
631 <function>GetMachineAddresses()</function>, <function>GetMachineSSHInfo()</function> and <function>GetMachineOSRelease()</function> of the
632 Manager interface, respectively.</para>
636 <title>Properties</title>
638 <para><varname>Name</varname> is the machine name as it was passed in during registration with
639 <function>CreateMachine()</function> on the manager object.</para>
641 <para><varname>Id</varname> is the machine UUID.</para>
643 <para><varname>Timestamp</varname> and <varname>TimestampMonotonic</varname> are the realtime and
644 monotonic timestamps when the virtual machines where created in microseconds since the epoch.</para>
646 <para><varname>Service</varname> contains a short string identifying the registering service as passed
647 in during registration of the machine.</para>
649 <para><varname>Unit</varname> is the systemd scope or service unit name for the machine.</para>
651 <para><varname>Leader</varname> is the PID of the leader process of the machine.</para>
653 <para><varname>Class</varname> is the class of the machine and is either the string "vm" (for real VMs
654 based on virtualized hardware) or "container" (for lightweight userspace virtualization sharing the
655 same kernel as the host).</para>
657 <para><varname>RootDirectory</varname> is the root directory of the container if it is known and
658 applicable or the empty string.</para>
660 <para><varname>NetworkInterfaces</varname> contains an array of network interface indices that point
661 towards the container, the VM or the host. For details about this information see the description of
662 <function>CreateMachineWithNetwork()</function> above.</para>
664 <para><varname>VSockCID</varname> is the VSOCK CID of the VM if it is known, or
665 <constant>VMADDR_CID_ANY</constant> otherwise.</para>
667 <para><varname>SSHAddress</varname> is the address of the VM in a format <command>ssh</command> can understand
668 if it is known or the empty string.</para>
670 <para><varname>SSHPrivateKeyPath</varname> is the path to the SSH private key of the VM if it is known
671 or the empty string.</para>
673 <para><varname>State</varname> is the state of the machine and is one of <literal>opening</literal>,
674 <literal>running</literal>, or <literal>closing</literal>. Note that the state machine is not considered
675 part of the API and states might be removed or added without this being considered API breakage.
681 <title>Examples</title>
684 <title>Introspect <interfacename>org.freedesktop.machine1.Manager</interfacename> on the bus</title>
687 $ gdbus introspect --system \
688 --dest org.freedesktop.machine1 \
689 --object-path /org/freedesktop/machine1
694 <title>Introspect <interfacename>org.freedesktop.machine1.Machine</interfacename> on the bus</title>
697 $ gdbus introspect --system \
698 --dest org.freedesktop.machine1 \
699 --object-path /org/freedesktop/machine1/machine/rawhide
704 <xi:include href="org.freedesktop.locale1.xml" xpointer="versioning"/>
707 <title>History</title>
709 <title>The Manager Object</title>
710 <para><function>CopyFromMachineWithFlags()</function> and
711 <function>CopyToMachineWithFlags()</function> were added in version 252.</para>
712 <para><function>GetMachineSSHInfo()</function> was added in version 256.</para>
715 <title>Machine Objects</title>
716 <para><function>CopyFromWithFlags()</function> and
717 <function>CopyToWithFlags()</function> were added in version 252.</para>
718 <para><function>GetSSHInfo()</function>, <varname>VSockCID</varname>, <varname>SSHAddress</varname>
719 and <varname>SSHPrivateKeyPath</varname> were added in version 256.</para>
724 <title>See Also</title>
725 <para><simplelist type="inline">
726 <member><citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>
727 <member><citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry></member>
728 <member><citerefentry><refentrytitle>machinectl</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>