Patent attributes
System for launching application containers inside VMs without data duplication, includes first and second VMs on a host; a storage to which the host has access; a container generation module running on the host and configured to interface to VM-side container generation daemons in the VMs; the container generation daemons transmits to the container generation module a request to pull container layers; a host-side container generation daemon processes the request to pull the container layers from the container generation daemons running inside the VMs; and a DAX device residing on each of the VMs. The host container generation daemon sends the request for any missing container layers to a registry, and writes them onto the storage, maps the layers to the VMs as the DAX devices, maps all needed container layers to the first VM and maps any identical container layers to the second VM, without accessing the registry.
