Containers are meant to provide component isolation in a modern software stack. Put your database in one container, your web application in another, and they can all be scaled, managed, restarted, and ...

Docker Compose is a tool for defining and running multi-container Docker applications. In other words, if you have a need to define a service that requires more than one Docker container to function, ...

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 ...