A method for discovering and publishing device changes in a cloud computing environment. The method includes scanning, by a processor, a computing environment to detect a multiple computing elements. The processor generates an index data structure including allocation of nodes that each represent a computing element of the multiple computing elements. The nodes each include a computed hash value that includes computing element status of the node and status of associated child nodes. The index data structure is monitored for discovering a change in status of any of the nodes. In response to determining a change in status of any of the nodes, the index data structure is re-generated and the hash value for each node associated with the change in status is re-computed. An updated status of one or more of the nodes is provided based on the change in status.