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Docker Storage on Unraid Finally Explained | Docker Demystified Part 2

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Source: The Uncast Show
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  • description: *Dive deep into the world of Docker containers on Unraid!* In Part 1, we explained what containers are, what problems they solve, how they are lightweight and isolated, and much more: https://youtu.be/y2Pk5j2l-gI In this second part of our Docker Demystified series, we tackle the most critical part of running apps on Unraid: *Data Management.* Many beginners struggle with losing configurations after an update or not knowing where files are actually stored. We explain exactly how to prevent that. You’ll learn: *--The crucial difference between Persistent and Non-Persistent data.* *--What actually lives inside the Docker Image vs. what stays on your server.* *--Path Mappings explained simply: How to connect your Unraid storage to your containers.* *--Troubleshooting tips for when your container can't "see" your files.* *--How to safely remove containers without deleting your app data.* *Chapters* 00:00 Understanding Docker Containers 01:50 Persistent vs Non-Persistent Data 04:10 The Solution: Volume Mappings 05:50 Where Data Lives: The Appdata Share 09:09 Exploring the Container's Internal Filesystem 11:59 Path Mapping Logic (Host vs. Container) 14:55 Practical Demo: Setting Up a New Mapping 17:47 Troubleshooting & Verifying Data Persistence 20:43 Cleanup & Conclusion *Takeaways* --Docker containers are lightweight and share the host kernel. --Understanding data management is crucial for effective container use. --Persistent data survives container updates, while non-persistent data does not. --Docker image files store non-persistent data and configurations. --Path mappings are essential for containers to access host data. --Container paths must be correctly mapped for communication between containers. --Removing a container does not delete its app data by default. --It's important to clean up orphaned app data after container removal. --Docker networking will be discussed in the next part. --Proper data management ensures smooth operation of Docker containers. What will you build with Unraid? Get Started with Unraid in 15 minutes or less: https://unraid.net/getting-started Keywords Docker, Unraid, containers, data management, path mappings, persistent data, non-persistent data, Docker image, troubleshooting, media server
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