The container mindset

Today, as we have somewhat covered earlier in the chapter, vast majority of services deployed today are a big mess of ad hoc or manually connected and configured pieces that tend to break apart as soon as a single piece is changed or moved. It is easy to imagine this as a tower of cards where the piece that needs changing is often in the middle of it, with risks taking the whole structure down. Small-to-medium projects and talented Dev and Ops team can mostly manage this level of complexity but it is really not a scalable methodology.