Submitted 1 day ago by enemenemu@lemm.ee to selfhosted@lemmy.world
I’ve got a mini pc which is running always and another one which consumes a lot more power for e.g. jellyfin.
Can I configure it such that the jellyfin server only boots if I connect to it? E.g. I try to connect to jellyfin.y.com and then the server boots because the mini pc tries to connect to it.
I already figured out how to let it sleep automatically as soon as nobody is watching.
I believe so—see Wake-on-LAN.
I use wake on lan to boot at a certain time. I also found an app via which I can boot the server via wake on lan. But it would be nice if it could wake up just by requesting the service
That’s how it works. Wake-on-LAN wakes the computer if the computer receives a network request. Which is the same thing you’re asking for, right?
I think you’ll want to look into Wake On LAN to do this. I can’t give you instructions (tried once unsuccessfully on a Windows installation) but that should be enough to get you started.
Thanks! I use wake on lan to boot at a certain time. I also found an app via which I can boot the server via wake on lan. But it would be nice if it could wake up just by requesting the service
Also an option, systemd based, could be to use systemd socket files, which (as far as I understand) opens a dummy socket and starts the matching service as soon as it’s requested.
I love systemd.
Is this what you suggest? cybso.de/…/how-wake-lan-remote-host-demand-using-…
This sounds like a proxy that sends a magic paket if it can’t reach the service. That sounds great
Basically yeah, though other solutions may be easier or more integrated. Using systemd sockets is especially useful if you want to start a service on the local server that is always on, with a service that uses a lot of resources in the background without other user interaction
I made a tool that can hibernate systemd services when no request get through their associated nginx service. Using it on jellyfin, works great
I assume this works like the reverse of socket activation? If so, that’s pretty rad!
That said, that doesn’t really solve OP’s problem, and I’m not exactly sure what it’s solving for you. Jellyfin doesn’t really use any resources when idle, so it’s not going to save on power or anything like that.
That said, you could probably create an interesting service like this. Basically, if the last interesting service shuts down, you shut the whole machine down, and then use WoL to start it back up when someone wants it. Tune it a bit to reduce how often it reboots (i.e. extend life of your disks) and reduce boot times (i.e. don’t mount the RAID until it’s needed), and it could be really cool!
Exactly. It’s like socket activation but plugged into nginx. It might or might not fit OP’s use case, as when you have many small services like jellyfin, ram usage starts adding up. Adding automatic shutdown is a great idea
Dragonish@lemmy.dbzer0.com 1 day ago
If you have a reverse proxy running on the mini pc and handling jellyfin.y.com then there is this plugin which will send the WoL packet to the jellyfin server when a request is sent.
github.com/dulli/caddy-wol
enemenemu@lemm.ee 1 day ago
Thanks!
I use nginxproxymanager, I’ll try to find something similar (I couldn’t find something directly)
Xanza@lemm.ee 1 day ago
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