> All of the dependencies of the application are bundled with the container which means no need to build on the fly on every server during deployment. This results in much faster deployments and rollbacks. ... Not having to pull from git on every deployment eliminates the risk of a github outage keeping you from being able to deploy.

Obviously there are other benefits, but it's funny how much of the motivation for containers comes from "now we don't have to do git clone && npm install!", which was always the case.