Chef is being used to build the VM and put the entire thing together. But after it's built - you never need to use Chef again.

Fig didn't exist when I started this and I wanted to mirror the git push that Heroku used.

Logging is handled by Docker - and can be sent to services like Papertrail if you use something like logspout:

http://blog.froese.org/2014/05/15/docker-logspout-and-nginx/