🐳 Docker From Scratch – Day 5: Docker Volumes & Persistent Storage Explained
🐳 Docker From Scratch – Day 5: Understanding Docker Volumes and Persistent Storage In the previous article, we explored Docker Networking and learned how containers communicate with each other using Bridge Networks, Port Mapping, and Docker DNS. By now, you can build Docker Images, create containers, expose applications to users, and even connect multiple containers together. However, another important question arises when working with real-world applications. What happens to the data inside a container when that container is deleted? If you are running a MySQL database inside Docker and accidentally remove the container, will your database still exist? Understanding the answer to this question introduces one of the most important concepts in Docker—Persistent Storage using Docker Volumes. Containers are designed to be lightweight, portable, and temporary. They can be created in seconds and removed just as quickly. This behavior is one of Docker's greatest strengths because ...