Munki Syncer - LaunchDaemon and script to auto sync a local munki_repo from a master on an smb server elsewhere within your organization once a day at a specified time. The server mount point could be automounted etc, but this script demonstrates mounting it dynamically if needed

MunkiSyncer.sh

#!/bin/bash
SERVER_MOUNT_PT="/Volumes/Munki"
SERVER_URL="//SERVICEACCOUNTNAME:SERVICEACCOUNTPASS@mastermunkiserver.yourorg.org/Munki"
we_mounted="false"

MUNKI_MASTER="/Volumes/Munki/Master Repository/munki_repo/"
MUNKI_LOCAL="/Users/Shared/munki_repo"
# important, trailing slash must be on source and must not be on destination

MountServer()
{
	if [ ! -d "${SERVER_MOUNT_PT}" ]; then
		# the sysctl is needed to get smbfs mounting from root
		sysctl -w net.smb.fs.kern_ntlmssp=1
		mkdir "${SERVER_MOUNT_PT}"
		mount -t smbfs  "${SERVER_URL}" "${SERVER_MOUNT_PT}"
		result=$?

		if [ "$result" == 0 ]; then
			we_mounted="true"
		else
			rmdir "${SERVER_MOUNT_PT}"
			echo "### error ${result} trying to mount moof, exiting"
			exit ${result}
		fi
	fi
}

UnmountServer()
{
	if [ "${we_mounted}" == "true" ]; then
		umount "${SERVER_MOUNT_PT}"
	fi
}

MunkiSyncEverything()
{
	rsync --exclude '.DS_Store' --delete-before --recursive --owner --group --times --progress "${MUNKI_MASTER}" "${MUNKI_LOCAL}"
}

MunkiUpdatePermissions()
{
	# probably not needed, but does not hurt
	echo "Updating munki_repo permissions..."
	chmod -R 777 "${MUNKI_LOCAL}"
}

echo "### $(date) munki sync begin "
MountServer
MunkiSyncEverything
MunkiUpdatePermissions
UnmountServer
echo "### $(date) munki sync end "
exit 0

org.yourorg.munkisyncer.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>org.yourorg.munkisyncer</string>
	<key>ProgramArguments</key>
	<array>
		<string>/private/var/root/Library/yourorg/MunkiSyncer.sh</string>
	</array>
	<key>StandardOutPath</key>
	<string>/var/log/munkisyncer.log</string>
	<key>StandardErrorPath</key>
	<string>/var/log/munkisyncer.log</string>
	<key>StartCalendarInterval</key>
	<dict>
		<key>Hour</key>
		<integer>17</integer>
		<key>Minute</key>
		<integer>30</integer>
	</dict>
</dict>
</plist>

No longer functional on OSX 10.10.3. Errors out on lines 12-13