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authorLennart Poettering <lennart@poettering.net>2016-02-03 20:32:06 +0100
committerLennart Poettering <lennart@poettering.net>2016-02-03 23:58:24 +0100
commit7732f92bad5f24a4bd03bb357af46da56b0ac94d (patch)
tree10e33a8ec564376365e05a0f12681a73aab40986 /man/systemd.nspawn.xml
parent021dd87bc055a5bfb2dcef83fc868fe24648b959 (diff)
nspawn: optionally run a stub init process as PID 1
This adds a new switch --as-pid2, which allows running commands as PID 2, while a stub init process is run as PID 1. This is useful in order to run arbitrary commands in a container, as PID1's semantics are different from all other processes regarding reaping of unknown children or signal handling.
Diffstat (limited to 'man/systemd.nspawn.xml')
-rw-r--r--man/systemd.nspawn.xml24
1 files changed, 15 insertions, 9 deletions
diff --git a/man/systemd.nspawn.xml b/man/systemd.nspawn.xml
index 7e604246f6..c07a4b0243 100644
--- a/man/systemd.nspawn.xml
+++ b/man/systemd.nspawn.xml
@@ -141,15 +141,21 @@
<varlistentry>
<term><varname>Boot=</varname></term>
- <listitem><para>Takes a boolean argument, which defaults to off. If
- enabled, <command>systemd-nspawn</command> will automatically
- search for an <filename>init</filename> executable and invoke
- it. In this case, the specified parameters using
- <varname>Parameters=</varname> are passed as additional
- arguments to the <filename>init</filename> process. This
- setting corresponds to the <option>--boot</option> switch on
- the <command>systemd-nspawn</command> command
- line. </para></listitem>
+ <listitem><para>Takes a boolean argument, which defaults to off. If enabled, <command>systemd-nspawn</command>
+ will automatically search for an <filename>init</filename> executable and invoke it. In this case, the
+ specified parameters using <varname>Parameters=</varname> are passed as additional arguments to the
+ <filename>init</filename> process. This setting corresponds to the <option>--boot</option> switch on the
+ <command>systemd-nspawn</command> command line. This option may not be combined with
+ <varname>ProcessTwo=yes</varname>.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>ProcessTwo=</varname></term>
+
+ <listitem><para>Takes a boolean argument, which defaults to off. If enabled, the specified program is run as
+ PID 2. A stub init process is run as PID 1. This setting corresponds to the <option>--as-pid2</option> switch
+ on the <command>systemd-nspawn</command> command line. This option may not be combined with
+ <varname>Boot=yes</varname>.</para></listitem>
</varlistentry>
<varlistentry>