What is container orchestration?

Simply container orchestration is the process of running one or more instances of an application. Think of the common understanding of an orchestra, a group of musicians who work together to produce a piece of music. The containers in your application are like the musicians in the orchestra; you may have specialist containers, of which there are low numbers of instances such as the percussionists, or you may have many instances such as the strings section. In an orchestra, the conductor keeps everything in time and ensures that the relevant musicians are playing the right music at the right time. In the world of containers, we have a scheduler; the scheduler is responsible for ensuring that the correct number of containers are running at any one time and that these containers are distributed correctly across the nodes in the cluster to ensure high availability. The scheduler, like a conductor, is also responsible for ensuring that the right instruments play...