In this chapter, we reviewed how to deploy and work with the Docker Swarm orchestrator. This is the default orchestrator in Docker as it comes out of the box with Docker Engine.
We learned about Docker Swarm's features and how to deploy applications using stacks (IaC files) and services instead of containers. Orchestration will manage the application's components to keep them running, helping us to even upgrade them without impacting users. Docker Swarm also introduced new objects such as secrets and config, which help us distribute workloads within cluster nodes. Volumes and networks should be managed cluster-wide. We also learned about overlay networking and how Docker Swarm's router mesh has simplified application publishing.
In the next chapter, we will learn about the Kubernetes orchestrator. Currently, Kubernetes is a small part of the Docker Certified Associate exam, but this will probably be increased in the following releases. It is also useful for you...