Summary
In this chapter, we discovered the underlying functionalities of container technology, from process isolation to container runtimes. Then, we looked at the main purposes and advantages of containers against VMs. After that, we started our time machines, looking into container history from 1979 to the current day. Finally, we discovered today's market trends and current container adoption in enterprise companies.
This chapter provided an introduction to container technology and its history. Podman is very close to Docker in terms of usability and CLI, and the next chapter will cover the differences between the two projects, from an architectural point of view and a user experience point of view.
After introducing Docker high-level architecture, Podman daemon-less architecture will be described in detail to understand how this container engine can manage containers without the need for a running daemon.
