Missing /etc/init.d/ipsec script after installing strongswan 5.3.2 from source

Ubuntu 14.04 (Amazon's Ubuntu AMI). Installed strongswan 5.3.2 from source (latest version in repo is too old and doesn't work). 1 question:

1) Noticed that the /init.d/ipsec (or /init/) script is missing. I'm a linux newb, so I assume this is the case because I installed from source and I'm expected to build this script myself somehow? Because the script is missing, I can't configure the OS to auto start the ipsec service upon boot. My question is How do I get the ipsec init script?

Your help is appreciated.