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jellyfin-qbittorrent-monitor: add webhook receiver for instant throttling

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This commit is contained in:
Simon Gardling
2026-04-17 19:47:29 -04:00
parent 48ac68c297
commit 1403c9d3bc
4 changed files with 257 additions and 5 deletions
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58
services/jellyfin/jellyfin-qbittorrent-monitor.nix
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@@ -5,14 +5,67 @@
lib,
...
}:
let
webhookPlugin = import ./jellyfin-webhook-plugin.nix { inherit pkgs lib; };
jellyfinPort = service_configs.ports.private.jellyfin.port;
webhookPort = service_configs.ports.private.jellyfin_qbittorrent_monitor_webhook.port;
in
lib.mkIf config.services.jellyfin.enable {
# Materialise the Jellyfin Webhook plugin into Jellyfin's plugins dir before
# Jellyfin starts. Jellyfin rewrites meta.json at runtime, so a read-only
# nix-store symlink would EACCES — we copy instead.
systemd.services.jellyfin-webhook-install = {
before = [ "jellyfin.service" ];
wantedBy = [ "jellyfin.service" ];
serviceConfig = {
Type = "oneshot";
RemainAfterExit = true;
User = config.services.jellyfin.user;
Group = config.services.jellyfin.group;
ExecStart = webhookPlugin.mkInstallScript {
pluginsDir = "${config.services.jellyfin.dataDir}/plugins";
};
};
};
# After Jellyfin starts, POST the plugin configuration so the webhook
# targets the monitor's receiver. Idempotent; runs on every boot.
systemd.services.jellyfin-webhook-configure = {
after = [ "jellyfin.service" ];
wants = [ "jellyfin.service" ];
before = [ "jellyfin-qbittorrent-monitor.service" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Type = "oneshot";
RemainAfterExit = true;
DynamicUser = true;
LoadCredential = "jellyfin-api-key:${config.age.secrets.jellyfin-api-key.path}";
ExecStart = webhookPlugin.mkConfigureScript {
jellyfinUrl = "http://127.0.0.1:${toString jellyfinPort}";
webhooks = [
{
name = "qBittorrent Monitor";
uri = "http://127.0.0.1:${toString webhookPort}/";
notificationTypes = [
"PlaybackStart"
"PlaybackProgress"
"PlaybackStop"
];
}
];
};
};
};
systemd.services."jellyfin-qbittorrent-monitor" = {
description = "Monitor Jellyfin streaming and control qBittorrent rate limits";
after = [
"network.target"
"jellyfin.service"
"qbittorrent.service"
"jellyfin-webhook-configure.service"
];
wants = [ "jellyfin-webhook-configure.service" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
@@ -44,7 +97,7 @@ lib.mkIf config.services.jellyfin.enable {
};
environment = {
JELLYFIN_URL = "http://localhost:${builtins.toString service_configs.ports.private.jellyfin.port}";
JELLYFIN_URL = "http://localhost:${builtins.toString jellyfinPort}";
QBITTORRENT_URL = "http://${config.vpnNamespaces.wg.namespaceAddress}:${builtins.toString service_configs.ports.private.torrent.port}";
CHECK_INTERVAL = "30";
# Bandwidth budget configuration
@@ -53,6 +106,9 @@ lib.mkIf config.services.jellyfin.enable {
DEFAULT_STREAM_BITRATE = "10000000"; # 10 Mbps fallback when bitrate unknown (bps)
MIN_TORRENT_SPEED = "100"; # KB/s - below this, pause torrents instead
STREAM_BITRATE_HEADROOM = "1.1"; # multiplier per stream for bitrate fluctuations
# Webhook receiver: Jellyfin Webhook plugin POSTs events here to throttle immediately.
WEBHOOK_BIND = "127.0.0.1";
WEBHOOK_PORT = toString webhookPort;
};
};
}