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Diffstat (limited to 'doc/s6-linux-init-maker.html')
| -rw-r--r-- | doc/s6-linux-init-maker.html | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/doc/s6-linux-init-maker.html b/doc/s6-linux-init-maker.html index fb2880d..ab8044f 100644 --- a/doc/s6-linux-init-maker.html +++ b/doc/s6-linux-init-maker.html @@ -406,7 +406,17 @@ not be the default, but might be useful in some cases. </li> <br> the container so the disks are <tt>sync</tt>ed on container halt. By default, no sync is performed. This option has no effect when the <tt>-C</tt> option is not present: on real machines, a <tt>sync</tt> is <em>always</em> -performed just before a system halt. </li> +performed just before a system halt. </li> <br> + + <li> <tt>-W</tt> <em>readyfd</em> : ensure that at boot time, +before doing anything, s6-linux-init waits +for file descriptor <em>readyfd</em> to signal EOF. This is typically useful in +containers that implement the Docker synchronization mechanism, where the +container manager starts the container with a pipe open to the container's +descriptor 3, does its preparation, and closes the pipe to tell the container's +init that it can proceed. If this option is not given, or <em>readyfd</em> is 0, +s6-linux-init-maker makes no provision for synchronization and s6-linux-init +will boot without waiting. </li> </ul> <h2> Organization of the created directory </h2> |