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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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[–] loganb@lemmy.world 6 points 2 years ago (1 children)

Is the drive totally dead? Curious what SMART would report.

My gut feeling is that it's probably cheaper to buy a replacement m.2 than the hours of time to get netboot working but it could be a fun project!

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

I might be able to hook it up to a usb NVMe reader, but when I initially tried I barely got any recognition of the drive from the OS. My primary system is windows, so I might get more info from one of my linux systems, just haven't had the fucks to give to the dead drive. As for a replacement drive, funds are scarce and time/learning is (comparatively) free. Someone else suggested kubernetes, so I might look into that to see if that can accomplish what I'm looking for.