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man: document "machinectl export-tar" and "export-raw"

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Lennart Poettering 2015-03-10 15:47:45 +01:00
parent 3b1c524154
commit 6e9efa5920
2 changed files with 60 additions and 7 deletions
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63
man/machinectl.xml
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@ -214,6 +214,18 @@
URL.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--format=</option></term>
<listitem><para>When used with the <option>export-tar</option>
or <option>export-raw</option> commands specifies the
compression format to use for the resulting file. Takes one of
<literal>uncompressed</literal>, <literal>xz</literal>,
<literal>gzip</literal>, <literal>bzip2</literal>. By default
the format is determined automatically from the image file
name passed.</para></listitem>
</varlistentry>
<xi:include href="user-system-options.xml" xpointer="host" />
<xi:include href="user-system-options.xml" xpointer="machine" />
@ -700,20 +712,46 @@
<command>cancel-transfer</command>.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>export-tar</command> <replaceable>NAME</replaceable> [<replaceable>FILE</replaceable>]</term>
<term><command>export-raw</command> <replaceable>NAME</replaceable> [<replaceable>FILE</replaceable>]</term>
<listitem><para>Exports a TAR or RAW container or VM image and
stores it in the specified file. The first parameter should be
a VM or container image name. The second parameter should be a
file path the TAR or RAW image is written to. If the path ends
in <literal>.gz</literal> the file is compressed with gzip, if
it ends in <literal>.xz</literal> with xz, and if it ends in
<literal>.bz2</literal> with bzip2. If the path ends in
neither the file is left uncompressed. If the second argument
is missing the image is written to standard output. The
compression may also be explicitly selected with the
<option>--format=</option> switch. This is in particular
useful if the second parameter is left unspecified.</para>
<para>Much like image downloads and imports, ongoing exports
may be listed with <command>list-transfers</command> and
aborted with
<command>cancel-transfer</command>.</para>
<para>Note that currently only directory and subvolume images
may be exported as TAR images, and only raw disk images as RAW
images.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>list-transfers</command></term>
<listitem><para>Shows a list of container or VM image
downloads and imports that are currently in
downloads, imports and exports that are currently in
progress.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>cancel-transfers</command> <replaceable>ID</replaceable>...</term>
<listitem><para>Aborts a download or import of the container
or VM image with the specified ID. To list ongoing transfers
and their IDs, use
<listitem><para>Aborts a download, import or export of the
container or VM image with the specified ID. To list ongoing
transfers and their IDs, use
<command>list-transfers</command>. </para></listitem>
</varlistentry>
@ -817,6 +855,17 @@
index server to be specified with the
<literal>--dkr-index-url=</literal>.</para>
</example>
<example>
<title>Exports a container image as tar file</title>
<programlisting># machinectl export-tar fedora myfedora.tar.xz</programlisting>
<para>Exports the container <literal>fedora</literal> in an
xz-compress tar file <filename>myfedora.tar.xz</filename> in the
current directory.</para>
</example>
</refsect1>
<refsect1>
@ -833,7 +882,11 @@
<para>
<citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-nspawn</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>
<citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
<citerefentry><refentrytitle>tar</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>xz</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>gzip</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>bzip2</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>

4
src/machine/machinectl.c
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@ -2320,8 +2320,8 @@ static int help(int argc, char *argv[], void *userdata) {
" pull-dkr REMOTE [NAME] Download a DKR container image\n"
" import-tar FILE [NAME] Import a local TAR container image\n"
" import-raw FILE [NAME] Import a local RAW container or VM image\n"
" export-tar FILE [NAME] Export a TAR container image locally\n"
" export-raw FILE [NAME] Export a RAW container or VM image locally\n"
" export-tar NAME [FILE] Export a TAR container image locally\n"
" export-raw NAME [FILE] Export a RAW container or VM image locally\n"
" list-transfers Show list of downloads in progress\n"
" cancel-transfer Cancel a download\n"
, program_invocation_short_name);