By Jon Cowie
Reap the benefits of Chef's hugely customizable layout to take on particular automation matters that you simply cannot remedy by means of easily utilizing Chef's instruments, assets, and providers out of the field. With this functional advisor, you will research the interior constitution of this configuration administration know-how and examine the place, how, and why so as to add customized code. writer Jon Cowie not just presents code snippets and sensible suggestion for customizing Chef, but in addition is helping you establish case through case no matter if it truly is on your top pursuits to customise in any respect. when you have intermediate-to-advanced Chef event, this publication is vital.
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Extra info for Customizing Chef: Getting the Most Out of Your Infrastructure Automation
People at Chef, Inc. don’t see Chef as a carved stone tablet that represents your infrastructure; they see it as a service layer that exposes data about how your in‐ frastructure is behaving and what it looks like. It is this extensibility and data service that allow the sorts of customizations we’ll look at in this book. Chef is modular Chef was also designed from the ground up to allow you to build your automated infrastructure using modular, reusable components. Chef cookbooks are formed out of discrete “chunks” of automation behavior that can be extended, shared, and reused across your infrastructure.
Will it let you introspect deeper into your Chef runs than you’ve ever been able to before? Will it generate metrics for you so you can tell at a glance whether your Chef runs are getting slower or faster? Will people be able to gain greater awareness of when Chef changes have gone live and what exactly they did? Maintainability Will the customization you’re considering make it easier for your Chef users to maintain your infrastructure codebase? Will it make people less afraid to change the one cookbook that runs on all of your servers?
When the run concludes, chef-client saves the node state and updated attributes back to the central server. The open source version of Chef server has to be configured, installed, and updated locally by the user and will not automatically scale. It is entirely possible to scale out components, but the user must do this manually. Chef, Inc. can provide optional paid support for open source Chef servers, but the Chef community is the more usual source of technical advice. Open source Chef is recommended for advanced users, or at the very least those comfortable with manually maintaining the respective components.
Customizing Chef: Getting the Most Out of Your Infrastructure Automation by Jon Cowie