[launchd-dev] LimitLoadToHosts doesn't work with RunAtLoad

[Dave Zarzycki]

Ian,

Does adding "kern.hostname=snow.uscs.susx.ac.uk" to /etc/sysctl.conf  
fix this behavior?

davez


On Jun 5, 2008, at 8:18 AM, Ian Eiloart wrote:

> Hi,
>
> I have a cluster of mail servers, using Wackamole to ensure IP  
> failover. I
> start wackamole at startup, since it requires to be available all  
> the time.
> Actually, I require NetworkState to be true.
>
> Each server has a different set of preferred IP addresses, so each  
> requires
> a different wackamole configuration file. I'm maintaining the software
> using RADMIND, and the simplest thing to do is place all the files  
> on all
> the servers. I had hoped that launchd's LimitLoadToHosts key would  
> help me
> out here, so I created a plist file for each server.
>
> The trouble is that adding the following key to the plist seems to  
> stop the
> service loading at startup, although it lets me load the service  
> from the
> command line. It works as expected on the other hosts, preventing  
> loading
> at any time.
>
> <key>LimitLoadToHosts</key>
> <array>
> 		<string>snow.uscs.susx.ac.uk</string>
> </array>
>
> Is this a bug in launchd? Does it work with, for example, on demand
> services?
>
> My full (working) plist is here:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
> "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
> <plist version="1.0">
> <dict>
> 	<key>EnvironmentVariables</key>
> 	<dict>
> 		<key>DYLD_LIBRARY_PATH</key>
> 		<string>/opt/local/lib</string>
> 	</dict>
> 	<key>KeepAlive</key>
> 	<dict>
> 		<key>NetworkState</key>
> 		<true/>
> 	</dict>
> 	<key>Label</key>
> 	<string>org.wackamole.snow</string>
> 	<key>ProgramArguments</key>
> 	<array>
> 		<string>/opt/local/sbin/wackamole</string>
> 		<string>-c</string>
> 		<string>/opt/local/etc/wackamole.snow.conf</string>
> 		<string>-d</string>
> 	</array>
> 	<key>RunAtLoad</key>
> 	<true/>
> </dict>
> </plist>
>
> -- 
> Ian Eiloart
> IT Services, University of Sussex
> x3148
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