In Juju, a configuration is a rule or a set of rules that define the behavior of your controller, model, or application.


Controller configuration

Controller configuration affects the operation of the controller as a whole.

See more: List of controller configuration keys, How to configure a controller

Model configuration

Model configuration affects behavior of a model, including the controller model.

See more: List of model configuration keys, How to configure a model

Application configuration

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 juju trust.

See more: How to trust an application with a credential

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