A Few Things I Wish I'd Known Earlier About Docker

Things That Make More Sense in Practice

Unlike a virtual machine, Docker containers share the host operating system, making them far lighter and faster to start. Docker Hub is the largest public registry of Docker images, offering thousands of ready-made images like MySQL or Nginx.

Why They Matter

Docker packages an application together with all its dependencies into a portable unit called a container. Tutorials often gloss over points like these, but they make a real difference on an actual project.