Infrastructure as a Service (IaaS) and Platform as...

Infrastructure as a Service (IaaS) and Platform as a Service (PaaS) are both infrastructure paradigms that each promised to reduce the operational complexity of IT infrastructure. They did the opposite. Ask your neighborhood CIO or CTO, and you will find out that software developers are spending increasing amounts of their time managing software deployments instead of writing software. Add to that the increasing frequency of change driven by Agile development processes, and the new technology complexity introduced by IaaS and PaaS, and you have identified the pain that will (finally) drive the adoption of containers as a de-facto means of deploying software.

Why Docker and Containerization is a key enabling technology for PaaS – thomason.io