SPIRL is a full workload identity solution based on SPIFFE (Secure Production Identity Framework for Everyone). What does this mean? What is SPIFFE and isn’t it already for everyone? Or if not, how could “everyone” include more “everyone”?
The most important piece to understand before getting started is that SPIFFE is a specification. Relevantly, this means that SPIFFE is not itself a tool, but rather something that can be implemented in a standard way. There are open-source implementations of SPIFFE, including a project called SPIRE, which we will also talk about in this article.