Bastille, created by Christer Edwards, is an open-source container system to automate deployment and manage containerized applications on the FreeBSD open-source operating system. Check out some of his YouTube videos (at the channel below) and the website to learn more about how you can utilize FreeBSD jails in the form of Bastille. Some of the features are automation templates, zero dependencies, snapshots, stackable templates, and more.
Bastille containers are extremely lightweight and provides a full featured UNIX-like operating system inside. These containers can be used for software development, rapid testing, and secure production Internet services.
Bastille is an open-source system for automating deployment and management of containerized applications on FreeBSD.
Bastille Github: https://github.com/BastilleBSD/bastille
BastilleBSD YouTube Channel: https://www.youtube.com/channel/UCniTnQDKIZN9ZTLPiyMI5eA