Working version of ilo fan control script

2025-12-31 11:34:18 +00:00 · 2025-12-30 23:09:14 -08:00
parent 434d760397
commit c5b0bad486
17 changed files with 141 additions and 99 deletions
--- a/modules/host-groups/apollo-2000.nix
+++ b/modules/host-groups/apollo-2000.nix
@@ -0,0 +1,109 @@
+{ config, pkgs, ... }:
+
+{
+  imports = [
+    # Users
+    ../../users/apollo-admin/apollo-admin.nix
+
+    # System Configuration
+    ../../modules/system/cpu-intel.nix
+    ../../modules/system/fonts.nix
+    ../../modules/system/home-manager-settings.nix
+    ../../modules/system/ilo-management.nix
+    ../../modules/system/internationalization.nix
+    ../../modules/system/networking.nix
+    ../../modules/system/nix-settings.nix
+    ../../modules/system/security.nix
+    ../../modules/system/systemd-boot.nix
+
+    # Application Groups
+    ../../modules/application-groups/system-utilities-cluster.nix
+    ../../modules/application-groups/virtualization.nix
+  ];
+
+  time.timeZone = "America/Los_Angeles";
+
+  systemd = {
+    services.hpe-ilo-keepalive = {
+      enable = true;
+      after = [ "network.target" ];
+      description = "Maintains ilo ssh session via sending periodic command";
+
+      serviceConfig = {
+        Type = "oneshot";
+        ExecStart = ''screen -S ilofansession -X stuff "fan info^M"'';
+      };
+
+      path = with pkgs; [
+        bash
+        screen
+        config.programs.ssh.package
+      ];
+    };
+    services.hpe-silent-fans = {
+      enable = true;
+      after = [ "network.target" ];
+      description = "Lowers fan speeds by using ilo over ssh to manually set fan parameters.";
+
+      serviceConfig = {
+        Type = "oneshot";
+        ExecStart = "${pkgs.writeShellScript "hpe-silent-fans.sh" ''
+          set -e
+
+          SCREEN_NAME=ilofansession
+
+          SSH_USER=ilouser
+          SSH_HOST=cap-apollo-ilo02
+          SSH_KEY=/root/.ssh/ilo_id_rsa
+          SSH_OPTIONS="-o KexAlgorithms=diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 -o PubkeyAcceptedKeyTypes=+ssh-rsa -o HostKeyAlgorithms=ssh-rsa -o StrictHostKeyChecking=no"
+
+          # Create screen session
+          screen -dmS $SCREEN_NAME
+
+          # Make initial iLO connection
+          screen -S $SCREEN_NAME -X stuff "ssh -i $SSH_KEY -t $SSH_USER@$SSH_HOST $SSH_OPTIONS^M"
+
+          sleep 5
+
+          ##### Tune pid for all non-segmented fans
+          for sensor in 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 19 20 21 26 28 29 30 31 32 38 40 41; do
+            screen -S $SCREEN_NAME -X stuff "fan pid $sensor lo 1600^M"
+            sleep 0.5
+          done
+
+          ##### Tune pid for segmented fans
+          for sensor in 8 22 23 24 25 27 39; do
+            screen -S $SCREEN_NAME -X stuff "fan a $sensor 0 0 16 41 16 25^M"
+            sleep 0.5
+          done
+
+          ##### Set minimum for fan group
+          screen -S $SCREEN_NAME -X stuff "fan p 0 min 16^M"
+        ''}";
+
+      };
+
+      path = with pkgs; [
+        bash
+        screen
+        config.programs.ssh.package
+      ];
+    };
+
+    timers.hpe-ilo-keepalive = {
+      wantedBy = [ "timers.target" ];
+      timerConfig = {
+        OnCalendar = "*-*-* *:0/5:00";
+        Unit = "hpe-ilo-keepalive.service";
+      };
+    };
+  };
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "25.11"; # Did you read the comment?
+}