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Mastering Puppet - Second Edition by Thomas Uphill

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Chapter 3. Git and Environments

When working in a large organization, changes can break things. Every developer will need a sandbox to test their code. A single developer may have to work on two or three issues independently, throughout the day, but they may not apply the working code to any node. It would be great if you could work on a module and verify it in a development environment or even on a single node, before pushing it to the rest of your fleet. Environments allow you to carve up your fleet into as many development environments, as needed. Environments allow nodes to work from different versions of your code. Keeping track of the different versions with Git allows for some streamlined workflows. Other versioning systems can be used, ...

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