SUSTAINABILITY MODES IN SOFTWARE ENGINEERING

A method comprising: storing, in a memory, a database that identifies whether each of a plurality of nodes is powered by a sustainable power source or a non-sustainable power source; receiving a request to perform an action; detecting whether the plurality of nodes includes one or more candidate nodes, each of the candidate nodes being a node that is powered by a sustainable power source and has both capacity and capability to execute the request, the detecting being performed based, at least in part, on the database; when the plurality of nodes includes one or more candidate nodes, routing the request to one of the candidate nodes; and when the plurality of nodes does not include any candidate nodes, routing the request.