From b6741478e7661c7e580e5dcfd6a6fccd1899c1d0 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 11 Dec 2013 22:04:03 +0100
Subject: journal: add ability to browse journals of running OS containers

This adds the new library call sd_journal_open_container() and a new
"-M" switch to journalctl. Particular care is taken that journalctl's
"-b" switch resolves to the current boot ID of the container, not the
host.
---
 man/sd_journal_open.xml | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

(limited to 'man/sd_journal_open.xml')

diff --git a/man/sd_journal_open.xml b/man/sd_journal_open.xml
index bb3703d015..b068630982 100644
--- a/man/sd_journal_open.xml
+++ b/man/sd_journal_open.xml
@@ -46,6 +46,7 @@
                 <refname>sd_journal_open</refname>
                 <refname>sd_journal_open_directory</refname>
                 <refname>sd_journal_open_files</refname>
+                <refname>sd_journal_open_container</refname>
                 <refname>sd_journal_close</refname>
                 <refname>sd_journal</refname>
                 <refname>SD_JOURNAL_LOCAL_ONLY</refname>
@@ -79,6 +80,13 @@
                                 <paramdef>int <parameter>flags</parameter></paramdef>
                         </funcprototype>
 
+                        <funcprototype>
+                                <funcdef>int <function>sd_journal_open_container</function></funcdef>
+                                <paramdef>sd_journal** <parameter>ret</parameter></paramdef>
+                                <paramdef>const char* <parameter>machine</parameter></paramdef>
+                                <paramdef>int <parameter>flags</parameter></paramdef>
+                        </funcprototype>
+
                         <funcprototype>
                                 <funcdef>void <function>sd_journal_close</function></funcdef>
                                 <paramdef>sd_journal* <parameter>j</parameter></paramdef>
@@ -131,6 +139,13 @@
                 can be rotated at any moment, and the opening of
                 specific files is inherently racy.</para>
 
+                <para><function>sd_journal_open_container()</function>
+                is similar to <function>sd_journal_open()</function>
+                but opens the journal files of a running
+                OS container. The specified machine name refers to a
+                container that is registered with
+                <citerefentry><refentrytitle>systemd-machined</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
+
                 <para><varname>sd_journal</varname> objects cannot be
                 used in the child after a fork. Functions which take a
                 journal object as an argument
@@ -230,7 +245,8 @@
                         <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
-                        <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+                        <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>systemd-machined</refentrytitle><manvolnum>8</manvolnum></citerefentry>
                 </para>
         </refsect1>
 
-- 
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