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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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[–] just_another_person@lemmy.world 4 points 2 years ago (1 children)

Run a livecd of whatever Linux distro you like, and get a USB drive. Store persistent files on the USB stick.

[–] Passerby6497@lemmy.world -1 points 2 years ago (1 children)

I don't want to use a USB for storage, because those aren't going to have a great lifespan in my experience. I've used them as the install media for something like ESX, but I'd rather not run a 'real' OS from a disk because I wasn't impressed with overall lifespan on some of the systems we managed at work.

[–] possiblylinux127@lemmy.zip 1 points 2 years ago* (last edited 2 years ago)

Then get a proper drive. Maybe a USB adapter?