I'm a bit confused about Docker being classified as OS-level virtualization. I know that hypervisors virtualize hardware, but Docker seems to operate differently. It uses the host's OS kernel, which makes it hard for me to understand how it's considered virtualization at all. Can anyone clarify how Docker fits into this hierarchy?
1 Answer
Docker essentially bundles features like chroot and cgroups, allowing for process and dependency isolation rather than traditional virtualization. If you know your way around Linux, you could replicate what Docker does using standard commands, making it less about virtualization and more about managing processes efficiently.
Totally agree! Docker's approach really simplifies things but can be misleading when trying to label it as virtualization.