launchd plist for a bamboo agent on Mac. Just replace the values for your setup. You may have to create a wrapper script to call the Jar file. Make sure to give the sh file execute permission.

com.atlassian.bamboo-agent.plist

<?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>com.atlassian.bamboo</string>
 
        <key>UserName</key>
        <string>username_goes_here</string>
 
        <key>ProgramArguments</key>
        <array>
            <string>/Applications/Bamboo/bamboo.sh</string>
            <string>console</string>
        </array>
 
        <key>KeepAlive</key>
        <true/>
 
        <key>RunAtLoad</key>
        <true/>
    </dict>
</plist>