This is the same issue as MySQL suffers. If you go to:
/Library/StartupItems
You will see that both ColdFusion and MySQL (if you have it installed) have created startup items - however that functionality has been deprecated by Apple (see Mac Developer Library: Startup Items) so the services do not startup automatically as desired. The preferred method is by using Launch Daemons.
To do so you must create an XML / text file as follows:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.coldfusion.startup</string>
<key>Disabled</key>
<false/>
<key>OnDemand</key>
<true/>
<key>RunAtLoad</key>
<true/>
<key>UserName</key>
<string>root</string>
<key>AbandonProcessGroup</key>
<true/>
<key>ProgramArguments</key>
<array>
<string>/Applications/ColdFusion11/cfusion/bin/coldfusion</string>
<string>start</string>
</array>
<key>ProcessType</key>
<string>Background</string>
</dict>
</plist>
Replace 'root' with a valid admin UserName. This file should then be saved to the following directory, I used the filename 'com.coldfusion.startup.plist':
/Library/LaunchDaemons
The system may ask for your password to save the file here if you're using Finder to do so.
Now using Terminal, you must set the appropriate access permissions on the new file you have created, so that it will run properly on startup. Use the following 3 commands:
sudo chown root /Library/LaunchDaemons/com.coldfusion.startup.plist
sudo chgrp wheel /Library/LaunchDaemons/com.coldfusion.startup.plist
sudo chmod 644 /Library/LaunchDaemons/com.coldfusion.startup.plist
Finally you should run the new LaunchDaemon once to register it and ensure it runs on startup subsequently:
sudo launchctl load /Library/LaunchDaemons/com.coldfusion.startup.plist
Now if you restart your system ColdFusion should run automatically. Excellent. I pieced this together from a couple of articles listed below:
Autostart MySQL Server on Mac OS X Yosemite
Autostart ColdFusion in OS X Yosemite
The CF Launch Daemon is only marginally altered to work with CF11 etc. If you use a simpler Launch Daemon it doesn't work. You also need the permissions from the MySQL question - so many thanks to the respective authors.