In Juju, a configuration is a rule or a set of rules that define the behavior of your controller, model, or application.
Controller configuration affects the operation of the controller as a whole.
Model configuration affects behavior of a model, including the
Application configuration affects the behavior of an application.
Application configuration keys are generally application-specific.
See more: How to configure an application
However, there is also a generic key,
trust, that can be changed via
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