1. A method, in a set of distributed nodes, for bandwidth-efficient virtual machine image delivery, the method comprising: responsive to a request to generate a virtual machine (VM) in a node using an existing virtual machine image (VMI) file, identifying a set of file chunks that constitute the VMI file; retrieving the set of file chunks from within the set of distributed nodes, wherein retrieving the set of file chunks from within the set of distributed nodes comprises establishing an optimized plan for retrieving the set of file chunks in a bandwidth-efficient manner; and responsive to retrieving the set of file chunks from within the set of distributed nodes, reassembling the set of file chunks into the VMI file for generation of the VM.