Examples relate to cloud models based on network definition data. Some examples disclosed herein may enable obtaining first cloud definition data that describes a first cloud infrastructure. The first cloud definition data may comprise network definition data that describes a first server node to be included in the first cloud infrastructure and a first set of network interfaces to be enumerated on a bus of the first server node. Some examples may further enable generating a first cloud model based on the first cloud definition data. The first cloud model may comprise first cloud configuration data that, when executed, causes the first cloud infrastructure to be deployed. Some examples may further enable storing a first checkpoint image of the first cloud model. The first checkpoint image may comprise at least a portion of the first cloud configuration data.