Can I Combine My Docker Containers into One LXC on Proxmox?

Merging your Docker containers into one LXC isn't too daunting—Docker's portability is one of its main advantages. I’d recommend moving them one by one and keeping the original LXC for backup until all is working well. Here’s a rough outline of what you should do:

1. Stop the original containers to prevent data changes.
2. Copy your docker compose folder to the new LXC’s file system.
3. Ensure all bind mounts are properly set up in the new location. Just maintain the same relative structure.
4. For named volumes, you’ll need to copy their data over as well. Use commands like `docker volume ls` and `docker volume inspect` to manage them.
5. Make sure user permissions match across the LXCs if you're using specific user settings in your containers.
6. Verify your network settings; Docker will create networks automatically, but ensure all necessary configurations are in place.

Once everything's copied and set up, run `docker-compose up -d` in your new LXC and you should be good to go!

I suggest installing Docker on one LXC and setting everything up there. It's a straightforward approach and keeps things clean!

Absolutely, you can migrate your containers over without any issues. If you’ve used Docker Compose, that will make it easier. Just collect your compose files along with any persistent data your containers need. Move everything to your new location, redeploy, and you should be good to go! Just keep in mind that officially, it's not recommended to run Docker inside an LXC on Proxmox, but if you’re careful, it can work just fine.