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Scalable Cloud Ops with Fugue by Josha Stella

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Moving Forward

Vars is a fundamental element of Fugue. It provides a secure membrane for you to pass application-level configuration from your development environment into Fugue’s cloud operating system—a system the context and architecture of which you’ll explore in the final chapter of this book.

You’ve seen that Vars can play a vital role in coordinating changes in your configurations to your entire fleet of instances. Simple to install and configure on your application instances, its interfaces have been designed to be as lightweight and user-friendly as possible. Throughout this chapter, you’ve probably contemplated services that seem to have feature sets similar to those of Vars. But unlike other tools, Vars requires very little infrastructure ...

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