MacOS – 10.7 Launchd + rvm

launchdmacos

This question fits somewhere between server fault, stackoverflow and askdifferent.

I am installing some web apps on my Lion server using webappctl, which hooks into apaches vhost configs to setup up a reverse proxy (simply mod_proxy). It uses launchd to start the server, in my case unicorn serving a Ruby on Rails app, listening on TCP port 5000. I use RVM (mixed-mode) to facilitate in separate ruby versions and gemsets for each webapp.

The problem lies with RVM and launchd, and the complete environment not being available for launchd.

I tried to start from launchd using /bin/bash -l -c 'unicorn_rails -l 5000' but that gave me bash usage errors in the logs.

Any suggestions for making RVM play nice with launchd?

Best Answer

I found a way to make a RVM-based rake command work with launchd:

/bin/bash -l -c '/absolute/path/to/myscript.sh'

My script was calling rake. I wasn't calling it directly.

Have you tried using an absolute path for your unicorn_rails?

The .plist looks like:

<?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>Label</key>
        <string>mylabel</string>
        <key>ProgramArguments</key>
        <array>
                <string>/bin/bash</string>
                <string>-l</string>
                <string>-c</string>
                <string>/absolute/path/to/myscript.sh</string>
        </array>
        <key>StartCalendarInterval</key>
        <dict>
                <key>Hour</key>
                <integer>10</integer>
                <key>Minute</key>
                <integer>00</integer>
        </dict>
    </dict> 
</plist>
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