Depending on the configuration, sometimes you cannot just replace a Vagrant setup with Docker. In my experience Vagrant VMs are used to reproduce cloud environm

Depending on the configuration, sometimes you cannot just replace a Vagrant setup with Docker. In my experience Vagrant VMs are used to reproduce cloud environments locally. For instance if you want to run locally "an ubuntu server running systemd plus sshd", you cannot just use Docker for that (well, I bet you can make Docker run systemd and other things, but that's not the intention of the tool), you have to use a VM. Now, sure if you are using a VM to run your Node application, well, you can easily use Docker instead.