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As mentioned by gvdhoorn and ralph, system modes might be of help for you. They provide a hierarchy abstraction (systems of systems of nodes) and a mode-manager that manages state and mode of these entire (sub-)systems. See system_modes package and its examples.

We also intend to provide rules to deal with the case that a node or system is not in its intended state/mode. I just created an issue with our first basic thoughts on that.

Love to hear your thoughts and feedback!

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