Docker containers are an amazing boon to developers and operations, and they’re essential tools to the emerging field of DevOps. By bundling an application with its runtime environment, you sidestep a potential world of pain.
For anyone who’s ever written code in one environment and run it in another, it’s a familiar problem. The application works on your laptop. It works on the test server. But, when you try to go live on the production server, it crashes.