[英]self restarting daemon in python in *nix system
如果你在Ubuntu上,我建议你看看暴发户 。 它比inittab
更好,但确实涉及一些学习曲线。
编辑 (布莱尔):这是我最近为自己的一个程序编写的新手脚本的改编示例。 像这样的基本新贵脚本是相当可读/可理解的(虽然很多这样的东西),当你开始做一些奇特的东西时,它们会变得复杂。
description "mydaemon - my cool daemon"
# Start and stop conditions. Runlevels 2-5 are the
# multi-user (i.e, networked) levels. This means
# start the daemon when the system is booted into
# one of these runlevels and stop when it is moved
# out of them (e.g., when shut down).
start on runlevel [2345]
stop on runlevel [!2345]
# Allow the service to respawn automatically, but if
# crashes happen too often (10 times in 5 seconds)
# theres a real problem and we should stop trying.
respawn
respawn limit 10 5
# The program is going to daemonise (double-fork), and
# upstart needs to know this so it can track the change
# in PID.
expect daemon
# Set the mode the process should create files in.
umask 022
# Make sure the log folder exists.
pre-start script
mkdir -p -m0755 /var/log/mydaemon
end script
# Command to run it.
exec /usr/bin/python /path/to/mydaemon.py --logfile /var/log/mydaemon/mydaemon.log
要创建守护程序,请使用双叉(),如您找到的代码中所示。 然后,您需要为守护程序编写一个init脚本并将其复制到/etc/init.d/中。
http://www.novell.com/coolsolutions/feature/15380.html
有许多方法可以指定守护程序的自动启动方式,例如chkconfig。
http://linuxcommand.org/man_pages/chkconfig8.html
或者,您可以手动为某些运行级别创建符号链接。
最后,您需要在意外退出时重新启动服务。 您可以在/ etc / inittab中包含serivce的respawn条目。
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