Infrastructure as Code Concepts
External
Internal
Overview
Infrastructure is not something you build and forget, in requires constant change: fixing, updating and improving. Infrastructure as Code principles and tools help delivering change more frequently, quickly and reliably, while improving the overall quality of the system at the same time. Used correctly, Infrastructure as Code embeds quality, reliability and compliance into the process of making changes. Changing infrastructure becomes safer.
Core Practices
Define Everything as Code
Code can be versioned and compared, it can benefit from lessons learned in software design patterns, principles and techniques such as test driven development, continuous integration, continuous delivery or refactoring.
Continuously Test and Deliver
Continuously testing small pieces encourages a modular, loosely coupled design.
Build Small, Simple Pieces that Can Be Changed Independently
Stack
Collection of infrastructure resources provisioned from cloud platforms.