73 lines
2.2 KiB
Python
73 lines
2.2 KiB
Python
# -*- test-case-name: twisted.runner.test.test_procmontap -*-
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# Copyright (c) Twisted Matrix Laboratories.
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# See LICENSE for details.
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"""
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Support for creating a service which runs a process monitor.
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"""
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from twisted.python import usage
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from twisted.runner.procmon import ProcessMonitor
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class Options(usage.Options):
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"""
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Define the options accepted by the I{twistd procmon} plugin.
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"""
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synopsis = "[procmon options] commandline"
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optParameters = [["threshold", "t", 1, "How long a process has to live "
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"before the death is considered instant, in seconds.",
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float],
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["killtime", "k", 5, "How long a process being killed "
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"has to get its affairs in order before it gets killed "
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"with an unmaskable signal.",
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float],
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["minrestartdelay", "m", 1, "The minimum time (in "
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"seconds) to wait before attempting to restart a "
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"process", float],
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["maxrestartdelay", "M", 3600, "The maximum time (in "
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"seconds) to wait before attempting to restart a "
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"process", float]]
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optFlags = []
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longdesc = """\
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procmon runs processes, monitors their progress, and restarts them when they
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die.
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procmon will not attempt to restart a process that appears to die instantly;
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with each "instant" death (less than 1 second, by default), it will delay
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approximately twice as long before restarting it. A successful run will reset
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the counter.
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Eg twistd procmon sleep 10"""
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def parseArgs(self, *args):
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"""
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Grab the command line that is going to be started and monitored
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"""
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self['args'] = args
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def postOptions(self):
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"""
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Check for dependencies.
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"""
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if len(self["args"]) < 1:
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raise usage.UsageError("Please specify a process commandline")
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def makeService(config):
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s = ProcessMonitor()
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s.threshold = config["threshold"]
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s.killTime = config["killtime"]
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s.minRestartDelay = config["minrestartdelay"]
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s.maxRestartDelay = config["maxrestartdelay"]
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s.addProcess(" ".join(config["args"]), config["args"])
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return s
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