CRI-O Overview

In the previous chapter, we briefly discussed Kubernetes concepts and the Kubernetes architecture, and the main differences between Kubernetes and Docker Swarm.    

The goal of this chapter is to give you a basic understanding of an alternative container runtime technology for Kubernetes—CRI-O. This chapter provides a basic understanding of the Container Runtime Interface, Open Container Initiative, and CRI-O, and describes how to manage containers using that technology.

After reading this chapter, you will have a solid understanding of the following topics:

• The Container Runtime Interface and Open Container Initiative
• How CRI-O works with Kubernetes
• Installing and working with CRI-O