forked from DGNum/infrastructure
98 lines
2.6 KiB
Nix
98 lines
2.6 KiB
Nix
{
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config,
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lib,
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pkgs,
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meta,
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name,
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...
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}:
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{
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power.ups = {
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enable = true;
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ups.eaton = {
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driver = "usbhid-ups";
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port = "auto";
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};
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users.eatonmon = {
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passwordFile = config.age.secrets."eatonmon-password_file".path;
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upsmon = "primary";
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};
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upsmon.monitor.eaton = {
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user = "eatonmon";
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};
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schedulerRules =
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let
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cmdScript = pkgs.writeShellApplication {
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name = "upssched-cmd.sh";
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runtimeInputs = with pkgs; [
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systemd
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msmtp
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];
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text = ''
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case $1 in
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shutdown-low) MEANING="Battery is low, shutting down.";;
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shutdown-batt) MEANING="On battery for 15min, shutting down.";;
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warn-batt) MEANING="Power line faillure, going on battery.";;
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warn-comm) MEANING="Communication with the UPS was broken.";;
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warn-bypass) MEANING="The UPS is not protecting the server, power line failure would kill $HOSTNAME instantly.";;
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*) MEANING="Signal unknown, check configuration.";;
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esac
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sendmail -i -t <<ERRMAIL
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To: fai+monitoring@dgnum.eu
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Subject: [$HOSTNAME] Battery signal: $1
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Content-Transfer-Encoding: 8bit
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Content-Type: text/plain; charset=UTF-8
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$MEANING
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ERRMAIL
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case $1 in
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shutdown-*) shutdown 20s # let 20s to send the email
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esac
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'';
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};
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in
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(pkgs.writeTextFile {
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name = "upssched.conf";
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text = ''
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CMDSCRIPT ${lib.getExe cmdScript}
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PIPEFN /var/state/ups/upssched/upssched.pipe
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LOCKFN /var/state/ups/upssched/upssched.lock
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AT LOWBATT * EXECUTE shutdown-low
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AT ONBATT * EXECUTE warn-batt
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AT ONBATT * START-TIMER shutdown-batt 900
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AT ONLINE * CANCEL-TIMER shutdown-batt
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AT COMMBAD * EXECUTE warn-comm
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AT NOCOMM * EXECUTE warn-comm
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AT BYPASS * EXECUTE warn-bypass
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'';
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}).outPath;
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};
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systemd.tmpfiles.settings."10-upsmon" =
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let
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root = {
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user = "root";
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group = "root";
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mode = "0600";
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};
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in
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{
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"/var/state/ups/upssched".d = root // {
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mode = "0700";
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};
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"/var/state/ups/upssched/upssched.pipe".p = root;
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};
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services.prometheus.exporters.nut = {
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enable = true;
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listenAddress = meta.network.${name}.netbirdIp;
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port = 9199;
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};
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networking.firewall.interfaces.wt0.allowedTCPPorts = [ 9199 ];
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}
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