Persisting Data with Docker Volumes
Learn how Docker volumes and bind mounts keep your data alive beyond a container's lifetime and let you share files between host and container.
Containers Are Ephemeral
When a container is removed, everything written inside its writable layer is gone. For databases, uploads, or logs you need storage that survives the container.
Two Storage Options
Docker offers two main mechanisms:
- Volumes: managed by Docker, stored in a dedicated area
- Bind mounts: map a specific host folder into the container
Volumes are the recommended default.
All lessons in this course
- Crafting Dockerfiles for Images
- Building Custom Docker Images
- Multi-Container Apps with Compose
- Persisting Data with Docker Volumes