Simply put, it allows you to run multiple-tenants' code (image) over shared infrastructure. Think about why all public clouds are built with virtualization tec

Simply put, it allows you to run multiple-tenants' code (image) over shared infrastructure. Think about why all public clouds are built with virtualization technology. Multi-tenants require strong isolation, which virtualization promises. Therefore, if we could get strong isolation in container, we can build public cloud with container.