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author | Laurent Bercot <ska-skaware@skarnet.org> | 2015-07-20 20:20:54 +0000 |
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committer | Laurent Bercot <ska-skaware@skarnet.org> | 2015-07-20 20:20:54 +0000 |
commit | a3cdeecf0033919e3b5a79c17c19b5ac98719256 (patch) | |
tree | 92a930930f18a4f8ae897b1a69c39358137ce1e2 /doc/s6-svc.html | |
parent | bd34de9054cec794d96b0fde1eee9100e1d34215 (diff) | |
download | s6-a3cdeecf0033919e3b5a79c17c19b5ac98719256.tar.xz |
- Add timeout-finish support and "down-readiness"
- LOTS of refactoring to make this work
- Remove s6-notifywhenup
- s6-supervise now rocks the casbah
- rc for 2.2.0.0
Diffstat (limited to 'doc/s6-svc.html')
-rw-r--r-- | doc/s6-svc.html | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/doc/s6-svc.html b/doc/s6-svc.html index 2de8ba4..f21847a 100644 --- a/doc/s6-svc.html +++ b/doc/s6-svc.html @@ -28,7 +28,7 @@ knowing their PIDs, and without using horrible hacks such as .pid files. <h2> Interface </h2> <pre> - s6-svc [ -D | -U ] [ -T <em>timeout</em> ] [ -abqhkti12pcoduxO ] <em>servicedir</em> + s6-svc [ -wu | -wU | -wd | -wD ] [ -T <em>timeout</em> ] [ -abqhkti12pcoduxO ] <em>servicedir</em> </pre> <p> @@ -75,13 +75,20 @@ it. </li> (in milliseconds) after which s6-svc will exit 1 with an error message if the service still hasn't reached the desired state. By default, the timeout is 0, which means that s6-svc will block indefinitely. </li> - <li> <tt>-D</tt> : s6-svc will not exit until the service is down. </li> - <li> <tt>-U</tt> : s6-svc will not exit until the service is up and + <li> <tt>-wd</tt> : s6-svc will not exit until the service is down, +i.e. until the <tt>run</tt> process has died. </li> + <li> <tt>-wD</tt> : s6-svc will not exit until the service is down +<em>and</em> ready to be brought up, i.e. a possible <tt>finish</tt> script has +exited. </li> + <li> <tt>-wu</tt> : s6-svc will not exit until the service is up, +i.e. there is a process running the <tt>run</tt> executable. </li> + <li> <tt>-wU</tt> : s6-svc will not exit until the service is up <em>and</em> <a href="notifywhenup.html">ready</a> as notified by the daemon itself. If the <a href="servicedir.html">service directory</a> does not contain a <tt>notification-fd</tt> file to tell <a href="s6-supervise.html">s6-supervise</a> to accept readiness -notification, s6-svc will print a warning and ignore the command. </li> +notification, s6-svc will print a warning and act as if the <tt>-wu</tt> +option had been given instead. </li> </ul> <h2> Usage examples </h2> @@ -100,12 +107,13 @@ the process represented by the <tt>/service/sshd</tt> service directory - typically the sshd server. </p> -<pre> s6-svc -Dd /service/ftpd </pre> +<pre> s6-svc -wD -d /service/ftpd </pre> <p> - Take down the ftpd server and block until the process is really down. + Take down the ftpd server and block until the process is down and +the finish script has completed. </p> -<pre> s6-svc -Uu -T 5000 /service/ftpd </pre> +<pre> s6-svc -wU -T 5000 -u /service/ftpd </pre> <p> Bring up the ftpd server and block until it has sent notification that it is ready. Exit 1 if it is still not ready after 5 seconds. @@ -123,10 +131,10 @@ process is <a href="s6-log.html">s6-log</a>, this triggers a log rotation. <li> s6-svc writes control commands into the <tt><em>servicedir</em>/supervise/control</tt> FIFO. A s6-supervise process running on <em>servicedir</em> will be listening to this FIFO, and will read and interpret those commands. </li> - <li> When invoked with the <tt>-D</tt> or <tt>-U</tt> option, s6-svc executes into + <li> When invoked with one of the <tt>-w</tt> options, s6-svc executes into <a href="s6-svlisten1.html">s6-svlisten1</a>, which will listen to service state -changes and spawn another s6-svc instance (without the <tt>-D</tt> or <tt>-U</tt> -option) that will send the commands to the service. Any error message written during +changes and spawn another s6-svc instance (without the <tt>-w</tt> option) +that will send the commands to the service. Any error message written during the waiting period will mention it is being written by s6-svlisten1; this is normal. </li> </ul> |