What are the options for persistent storage in Docker?

What are the options for persistent storage in Docker?

Docker provides several options for persistent storage, including volumes, bind mounts, and tmpfs mounts. Volumes are the preferred way as they are managed by Docker and can be easily shared between containers.

Can you explain the difference between volumes and bind mounts?

Sure! Volumes are stored in a part of the host filesystem which is managed by Docker, while bind mounts allow you to specify an exact path on the host. This means bind mounts can be more flexible but also less portable.

Are there any performance differences between these options?

Yes, generally, volumes are optimized for performance and are the recommended option for production environments. Bind mounts can be slower due to the overhead of accessing the host filesystem.

How do I create a volume in Docker?

You can create a volume using the command docker volume create <volume_name>. Then, you can use it in your containers with the -v flag.