Some of the containers' benefits only become apparent when you are using a container orchestrator to manage them. An orchestrator keeps track of all the nodes that will be running your workload, and it also monitors the health and status of the containers spread across these nodes.
More advanced features, for example, high availability, require the proper setup of the orchestrator, which typically means dedicating at least three machines for the control plane and another three machines for worker nodes. The autoscaling of nodes, in addition to the autoscaling of containers, also requires the orchestrator to have a driver able to control the underlying infrastructure (for example, by using the cloud provider's API).
Here, we will cover some of the most popular orchestrators that you can choose from to base your system on. You will find more practical information on Kubernetes in the next chapter, Chapter 15, Cloud-Native Design. Here...
