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Moving docker image data between VMs
(lemmy.ml)
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this post was submitted on 11 Oct 2025
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The first rule of containers is that you do not store any data in containers.
The second rule of containers is that you run them from a versioned config with proper volumes and tagging. Always.
If you obey these rules, then it's as simple as moving the volumes to another host and starting your containers. They're fully portable that way.
Do you mean they should be bind mounts? From here, a bind mount should look like this:
version: '3.8'
services: my_container: image: my_image:latest volumes: - /path/on/host:/path/in/container
So referring to my Firefly compose above, then I shoudl simply be able to copy over the
/var/www/html/storage/uploadfor the main app data and the database stored in here/var/lib/mysqlcan just be copied over? but then why does my local folder not have anystrorage/uploadfolders?user@vm101:/var/www/html$ ls index.html