Heat engine is the core service of Heat. Its functions include three layers. The first layer is to create a Stack and analyze the dependencies of various resources in the Stack; the second layer is…

Heat engine is the core service of Heat. Its functions include three layers. The first layer is to create a Stack and analyze the dependencies of various resources in the Stack; the second layer is to receive requests from the Heat level and input parameters according to the template; the third layer is to based on the parsed relationship, various service clients are called in sequence to create various resources.