1. A computer-implemented method for managing sandbox environment instances, the method comprising: instantiating a first testing sandbox environment instance to a known state based on a golden state definition, wherein the golden state definition specifies configurations of at least one component and at least one service for the first testing sandbox environment instance; performing a testing operation using the first testing sandbox environment instance by changing the configuration of at least one component or service of the first testing sandbox environment instance without changing the golden state definition, wherein the configuration of the at least one component or service of the first testing sandbox environment instance is placed in a testing state; determining changes between the configurations of the at least one component or service of the first testing sandbox environment instance and the configurations of the at least one component and at least one service of the golden state definition after performing the testing operation; and selectively restoring the first testing sandbox environment instance to the known state using the determined changes to only restore configurations of the at least one component or service of the first testing sandbox environment instance that were changed.