add cloudinit for mac

cloudinit.sh

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+## template: jinja
+#cloud-config
+
+/usr/bin/dscl . -passwd /Users/johndoe "abcd"
+
+mkdir -p /Volumes/cidata
+
+mount -t cd9660 -o nodev,nosuid,noowners /dev/disk1 /Volumes/cidata
+bash /Volumes/cidata/user-data
+umount /Volumes/cidata
+rmdir -p /Volumes/cidata

net.sourceforge.cloudinit.plist

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+<?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>PATH</key>
+ 		<string>/usr/local/bin:/sbin:/usr/sbin:/bin:/usr/bin</string>
+ 	</dict>
+ 	<key>Label</key>
+ 	<string>net.sourceforge.cloudinit.bash</string>
+ 	<key>ProgramArguments</key>
+ 	<array>
+		<string>/bin/bash</string>
+		<string>/usr/local/bin/cloudinit.sh</string>
+ 	</array>
+ 	<key>RunAtLoad</key>
+ 	<true/>
+    </dict>
+</plist>