4. Docker Volumes Explained - How to Persist MySQL Data in Docker (Avoid Data Loss!)
Are you losing your MySQL database every time you remove a Docker container?
In this video, I break down exactly how Docker volumes work, why containers are ephemeral, and how you can safely persist MySQL data using named volumes and bind mounts — so you never lose data again!
Whether you're a beginner or an intermediate Docker user, this guide will help you understand:
✔ What Docker volumes are
✔ Why you MUST use volumes for databases
✔ How MySQL stores data inside a container
✔ Why data disappears when containers are deleted
✔ How to map /var/lib/mysql to a Docker volume
✔ Named volumes vs Bind mounts (differences, pros & cons)
✔ Step-by-step demo to persist MySQL data safely
✔ Best practices to avoid accidental data loss
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