It'd probably be worthwhile to know how you're using and managing that generic VM. CloudFormation with something like Puppet or Chef? Just SSHing and git clonin

It'd probably be worthwhile to know how you're using and managing that generic VM. CloudFormation with something like Puppet or Chef? Just SSHing and git cloning your project as a deploy? Something else? Docker is, for most people, just a more simplified and consistent build and deployment strategy. Rather than having your deployment process have to include downloading and configuring dependencies, they'll just be baked into the image you're set to deploy. Rather than having potentially different operating systems on a host and build machine, it's all just container config. Rather than having to deploy a Ruby service and a Go service differently, you just build their containers and send them to a container registry. Containers bring simplification. A lot of that simplification is ruined by Kubernetes, but if you're currently on a generic VM, just switching to Docker might save you some headaches. It also might not, and I would say if you're finding success without it, what is the reason to switch?