The essence of configuration-as-code is to treat system configurations the same way that software code is treated. This means that configurations are written in a code format, stored in a version control system, and applied through automated processes. This approach brings several benefits, including consistency, repeatability, and the ability to test changes before applying them to live environments.
In the early days, system configurations were often managed manually or through ad-hoc scripts. This approach was prone to errors, hard to scale, and lacked visibility into changes. As systems grew more complex, the need for a more robust, scalable, and reliable method of managing configurations became apparent. This led to the creation of configuration-as-code.
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