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Learning AWS OpsWorks by Todd Rosner

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Chapter 4. Layers – the Blueprint for Success

Layers are the most important and detailed component of OpsWorks. This chapter takes a look at layers in detail and explains why they're so important, as well as how they relate to stacks and instances. As you work through this chapter, you will discover that layers really are the configuration management feature of OpsWorks, and thus, they are the blueprint for success.

Configuring layers

As mentioned earlier, a layer is basically a blueprint for how an EC2 instance is put together. Layers define which packages and applications are installed, and how they are configured. OpsWorks provides a series of layers that are designed for common roles such as PHP and Ruby on Rails app servers, MySQL database ...

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