Set what a cluster is called and what it is for
Sets the environment label and, when the body carries one, the criticality that decides how loudly the cluster reports. Both are written in a single transaction because to the operator they are one decision: picking an environment without a matching criticality is how a cluster ends up labelled for testing while the insight scanner still grades every finding on it at production weight. A body without a criticality leaves the stored one untouched and answers with the environment alone, which is the shape every caller written before the two settings were merged sends and expects.
Authorizations
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.