Sometimes, you only need one container, because all you need is one instance of an app. But sometimes you need cluster of containers that can respond to changes in demand, and that can be upgraded ...

This tutorial introduces Java developers to Docker Swarm. You’ll learn why so many enterprise shops have adopted container-managed development via Docker, and why clustering is an important technique ...

Containers are a hot topic. The technology, which has been most typified by Docker, enables applications to be deployed as a lightweight set of processes rather than an entire virtual machine (VM).