chiark / gitweb /
sd-bus: export sd_bus_call{,_async,_async_cancel}
[elogind.git] / man / systemd-nspawn.xml
index 3707a5ec942516ad811ced1621b51525f6ee4dd4..ca99da4909cac88b654779a86d0508945ec53f64 100644 (file)
                                 </listitem>
                         </varlistentry>
 
+                        <varlistentry>
+                                <term><option>-Z</option></term>
+                                <term><option>--selinux-context=</option></term>
+
+                                <listitem><para>Sets the SELinux
+                                security context to be used to label
+                                processes in the container.</para>
+                                </listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><option>-L</option></term>
+                                <term><option>--selinux-apifs-context=</option></term>
+
+                                <listitem><para>Sets the SELinux security
+                                context to be used to label files in
+                                the virtual API file systems in the
+                                container.</para>
+                                </listitem>
+                        </varlistentry>
+
                         <varlistentry>
                                 <term><option>--uuid=</option></term>
 
                                 CAP_AUDIT_CONTROL.</para></listitem>
                         </varlistentry>
 
+                        <varlistentry>
+                                <term><option>--drop-capability=</option></term>
+
+                                <listitem><para>Specify one or more
+                                additional capabilities to drop for
+                                the container. This allows running the
+                                container with fewer capabilities than
+                                the default (see above).</para></listitem>
+                        </varlistentry>
+
                         <varlistentry>
                                 <term><option>--link-journal=</option></term>
 
                                 creates read-only bind
                                 mount.</para></listitem>
                         </varlistentry>
+
+                        <varlistentry>
+                                <term><option>--setenv=</option></term>
+
+                                <listitem><para>Specifies an
+                                environment variable assignment to
+                                pass to the init process in the
+                                container, in the format
+                                <literal>NAME=VALUE</literal>. This
+                                may be used to override the default
+                                variables or to set additional
+                                variables. This parameter may be used
+                                more than once.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><option>-q</option></term>
+                                <term><option>--quiet</option></term>
+
+                                <listitem><para>Turns off any status
+                                output by the tool itself. When this
+                                switch is used, then the only output
+                                by nspawn will be the console output
+                                of the container OS
+                                itself.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><option>--share-system</option></term>
+
+                                <listitem><para>Allows the container
+                                to share certain system facilities
+                                with the host. More specifically, this
+                                turns off PID namespacing, UTS
+                                namespacing and IPC namespacing, and
+                                thus allows the guest to see and
+                                interact more easily with processes
+                                outside of the container. Note that
+                                using this option makes it impossible
+                                to start up a full Operating System in the
+                                container, as an init system cannot
+                                operate in this mode. It is only
+                                useful to run specific programs or
+                                applications this way, without
+                                involving an init
+                                system in the container.</para></listitem>
+                        </varlistentry>
+
                 </variablelist>
 
         </refsect1>
                 </para>
         </refsect1>
 
+        <refsect1>
+                <title>Example 5</title>
+
+                <programlisting># btrfs subvolume snapshot / /.tmp
+# systemd-nspawn --private-network -D /.tmp -b</programlisting>
+
+                <para>This runs a copy of the host system in a
+                btrfs snapshot.</para>
+        </refsect1>
+
+        <refsect1>
+                <title>Example 6</title>
+
+                <programlisting># chcon system_u:object_r:svirt_sandbox_file_t:s0:c0,c1 -R /srv/container
+# systemd-nspawn -L system_u:object_r:svirt_sandbox_file_t:s0:c0,c1 -Z system_u:system_r:svirt_lxc_net_t:s0:c0,c1 -D /srv/container /bin/sh</programlisting>
+
+                <para>This runs a container with SELinux sandbox security contexts.</para>
+        </refsect1>
+
         <refsect1>
                 <title>Exit status</title>