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 ...

Learn how to use Docker’s container registry to find official images and host your own for public or private use The power of Docker images is that they’re lightweight and portable—they can be moved ...

Devin Rich is a systems administrator in the finance industry. He spends his time focusing on automation, security and networking. Many system administrators have heard about Docker but don’t know ...