1 files changed, 79 insertions, 0 deletions
diff --git a/hostnix/elmo/system.nix b/hostnix/elmo/system.nix
new file mode 100644
index 0000000..8630abc
--- /dev/null
+++ b/hostnix/elmo/system.nix
@@ -0,0 +1,79 @@
+{ config, pkgs, ... }:
+
+{
+  nix.gc = {
+    automatic = true;
+    dates = "weekly";
+    options = "--delete-older-than 30d";
+  };
+  nix.settings.auto-optimise-store = true;
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.systemd-boot.configurationLimit = 10;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  boot.tmp.useTmpfs = true;
+
+  time.timeZone = "America/New_York";
+
+  networking.hostName = "elmo";
+  networking.domain = "mou.fo";
+
+  # TODO switch to networkd
+  networking.networkmanager.enable = true;
+
+  services.avahi = {
+    enable = true;
+    nssmdns4 = true;
+    publish = {
+      enable = true;
+      addresses = true;
+    };
+  };
+
+  # https://nixos.wiki/wiki/Hardware/Apple#Auto_Restart
+  systemd.services.enable-autorestart = {
+    description = "Boot after power failure (server mode)";
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      Type = "oneshot";
+    };
+    # https://superuser.com/a/1051137
+    script = "${pkgs.pciutils}/bin/setpci -s 00:1f.0 0xa4.b=0";
+  };
+
+  systemd.services.boot-email = {
+    description = "Boot email";
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      Type = "oneshot";
+    };
+    script = ''
+      echo -e "Subject: ${config.networking.fqdn} restarted\n\n$(date)" | /run/wrappers/bin/sendmail root
+    '';
+  };
+
+  # https://wiki.archlinux.org/index.php/Systemd/Timers#MAILTO
+  systemd.services."status-email@" = {
+    description = "Status email for %i";
+    unitConfig = {
+      # Throttle notifications to twice daily.
+      StartLimitIntervalSec = "12hr";
+      StartLimitBurst = "1";
+    };
+    serviceConfig = {
+      Type = "oneshot";
+    };
+    scriptArgs = "%i";
+    script = ''
+      /run/wrappers/bin/sendmail root <<EOF
+      From: systemd <root>
+      Subject: $1 status
+      Content-Transfer-Encoding: 8bit
+      Content-Type: text/plain; charset=UTF-8
+
+      $(systemctl status --full "$1")
+      EOF
+    '';
+  };
+}