Unfortunately, there is no update for this package, even in ports. I tried using py27-cloud-init-azure-0.7.9_1 package, but it also failed. Here is what the log messages:
2018-04-16 10:41:13,443 - util.py[DEBUG]: Cloud-init v. 0.7.9 running 'init' at Mon, 16 Apr 2018 07:41:13 +0000. Up...