Continuously integrating and deploying your infrastructure

Testing application code is now a de facto standard, especially since the adoption of test-driven development (TDD). TDD is a software development process in which developers write automated tests before writing code.

These tests are designed to fail initially, and developers then write code to make them pass. The code is continuously refactored to ensure it is efficient and maintainable while passing all tests. This approach helps reduce the number of bugs and increase the reliability of the software.

Testing infrastructure is not as easy as that as it’s hard to check whether Amazon Elastic Compute Cloud (EC2) will be successfully started without actually starting the instance. It’s possible to mock API calls to AWS, but it won’t guarantee that the actual API will return the same results as your testing code. With AWS, it would also mean that testing will be slow (we will need to wait for this EC2...