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Is it possible to run a docker host that has no harddrive? (lemmy.world)

submitted 2 years ago* (last edited 2 years ago) by Passerby6497@lemmy.world to c/selfhosted@lemmy.world

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So I had a micro PC that was running one of my core services and it only supports NVMe drives. Unfortunately, this little guy cooked itself and I'm not in a position to replace the drive. The system is still good and is fairly powerful, so I want to be able to reuse it.

I'm thinking I want to set up some kind of netboot appliance on another server to be able to allow me to boot the system without ever having a local disk. One thing I want to is run some docker images (specifically Frigate) but i wont be able to write anything to persistent storage locally. NFS shares are common in my setup.

Is it even possible to make a 'gold image' of a docker host and have it netboot? I expect that memory limitations (16GB) will be my main issue, but I'm just trying to think of how to bring this system back into use. I have two NAS appliances that I can use for backend long term storage (where I keep my docker files and non-database files anyway), so it shouldn't be too difficult to have some kind of easily editable storage solution. I don't want to use USB drives as persistent storage due to lifespan concerns from using them in production environments.

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[–] Passerby6497@lemmy.world 1 points 2 years ago

My ideal is something more like a netboot-able image that I can modify/recreate and have it pull on next boot. But those options aren't a bad thought either. I'd just need to have the bootable image configured with the info needed to bootstrap it. I've got another VM that's got a different automation platform running (Powershell Universal), but it would give me an excuse to learn another well known automation platform.