Not OP, but Im assuming its because of immutability of the containers where you can redeploy from a prebuilt image very quickly. There is nothing that says you

Not OP, but Im assuming its because of immutability of the containers where you can redeploy from a prebuilt image very quickly. There is nothing that says you cant do the same with servers / VMs however the deployment methodology for docker is a lot quicker (in most cases). Edit: Im aware its not truly immutable (read only) but you can reset your environment very easy and patching also becomes easier.