blob: cd766881928780af511bedf6662e030317fe813b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="Content-Language" content="en" />
<title>s6: the s6-instance-control program</title>
<meta name="Description" content="s6: the s6-instance-control program" />
<meta name="Keywords" content="s6 command s6-instance-control instance dynamic instantiation instanced services control s6-svc" />
<!-- <link rel="stylesheet" type="text/css" href="//skarnet.org/default.css" /> -->
</head>
<body>
<p>
<a href="index.html">s6</a><br />
<a href="//skarnet.org/software/">Software</a><br />
<a href="//skarnet.org/">skarnet.org</a>
</p>
<h1> The s6-instance-control program </h1>
<p>
s6-instance-control sends commands to a running instance of an
<a href="instances.html">instanced service</a>.
</p>
<h2> Interface </h2>
<pre>
s6-instance-control [ -wu | -wU | -wd | -wD | -wr | -wR ] [ -T <em>timeout</em> ] [ -abqhkti12pcyoduDUxOr ] <em>servicedir</em> <em>name</em>
</pre>
<ul>
<li> s6-instance-control expects a running, supervised
<a href="instances.html">instanced service</a> in <em>servicedir</em>,
as well as an existing instance of this service named <em>name</em>. </li>
<li> It sends the given series of commands to the supervisor monitoring
the <em>name</em> instance. </li>
<li> It exits 0. </li>
</ul>
<h2> Exit codes </h2>
<ul>
<li> 0: success </li>
<li> 99: with one of the <tt>-w</tt> options, timed out while waiting for the command to complete </li>
<li> 100: wrong usage </li>
<li> 111: system call failed </li>
</ul>
<h2> Options </h2>
<p>
The options, and the commands they represent, are exactly the same as the ones
understood by <a href="s6-svc.html">s6-svc</a>.
</p>
In fact, s6-instance-control is
nothing more than a call to <a href="s6-svc.html">s6-svc</a> on the service
directory representing the <em>name</em> instance. It is syntactic sugar so
the user does not have to depend on the internal representation of instances
and the location of instances' service directories.
</p>
</body>
</html>
|
