The nixops defaults module
Avoiding code repetition in a nixops deployment As with most configuration management tools, there are some options in nixops that need to be defined for virtually any machine in a deployment. These global options tend to be abstracted in a common base profile that is simply included at the top of a node configuration. This base profile can be used for including default packages, services or machine configuration usually needed on all machines—like networking debug tools and admin users with access to the whole network.
