[$] Containers as kernel objects — again

Linus Torvalds once famously saidthat there is no design behind the Linux kernel. That may be true, butthere are still some guiding principles behind the evolution of the kernel;one of those, to date, has been that the kernel does not recognize"containers" as objects in their own right. Instead, the kernel providesthe necessary low-level features, such as namespaces and control groups, toallow user space to create its own container abstraction. This refusal todictate the nature of containers has led to a diverse variety of containermodels and a lot of experimentation. But that doesn't stop those who wouldstill like to see the kernel recognize containers as first-classkernel-supported objects.