37 lines
1.3 KiB
HTML
37 lines
1.3 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
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<html>
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<head>
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<title>runit -service dependencies</title>
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</head>
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<body>
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<a href="http://smarden.org/pape/">G. Pape</a><br>
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<a href="index.html">runit</a><br>
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<hr>
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<h1>runit - service dependencies</h1>
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<hr>
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<i>runit</i>'s service supervision resolves dependencies for service daemons
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designed to be run by a supervisor process automatically.
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The service daemon (or the corresponding <tt>run</tt> scripts) should behave
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as follows:
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<ul>
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<li>before providing the service, check if all services it depends on are
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available.
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If not, exit with an error, the supervisor will then try again.
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<li>write all logs through <i>runit</i>'s logging facility.
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The <a href="runsv.8.html">runsv</a> program takes care that all logs for
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the service are written safely to disk.
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Therefore there's no need to depend on a system logging service.
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<li>optionally when the service is told to become down, take down other
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services that depend on this one after disabling the service.
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</ul>
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If you want to run service daemons that do not support service supervision
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as described above, please refer to
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<a href="http://smarden.org/pape/djb/daemontools/noinit.html">this page</a>
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about service dependencies I wrote some time ago.
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<hr>
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<address><a href="mailto:pape@smarden.org">
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Gerrit Pape <pape@smarden.org>
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</a></address>
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</body>
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</html>
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