DevOps, a portmanteau of development and operations, is the concept of breaking down the boundaries between development and operations to create an environment that achieves faster feedback and enables teams iterate faster towards the right solution.
As teams mature their DevOps capabilities one of the questions that inevitably arises is this: How do we achieve traceability between deployed versions and source code? Because at some point or another, we will encounter an issue in production that doesn't seem to make sense given the code the engineering team has on hand. The goal to know, with certainty, what version of the source code aligns with the deployed system is instrumental to enabling the team to solve the right problem.