pi/server more observable

Makefile

@@ -3,7 +3,7 @@ build-pi-image:
 
 # Doest work yet
 rebuild-pi:
-	nixos-rebuild switch --flake .#pi --target-host polen@192.168.1.241 --use-remote-sudo
+	nixos-rebuild switch --flake .#pi --target-host pi --build-host server --use-remote-sudo
 
 deploy-server:
 	nixos-rebuild switch --flake .#server --target-host server --build-host server --use-remote-sudo

devices/pi/configuration.nix

@@ -1,6 +1,10 @@
-{ inputs, config, pkgs, lib, ... }:
-
-let
+{
+  inputs,
+  config,
+  pkgs,
+  lib,
+  ...
+}: let
   user = "polen";
   hostname = "pi";
 in {
@@ -21,6 +25,13 @@ in {
     };
   };
 
+  swapDevices = [
+    {
+      device = "/var/lib/swapfile";
+      size = 10 * 1024;
+    }
+  ];
+
   #sops.defaultSopsFile = ../../secrets/secrets.yaml;
   #sops.defaultSopsFormat = "yaml";
   #sops.age.keyFile = "/home/polen/.config/sops/age/keys.txt";
@@ -40,6 +51,11 @@ in {
     '';
   };
 
+  services.prometheus.exporters = {
+    node.enable = true;
+    node.openFirewall = true;
+  };
+
   nix.settings.trusted-users = [user];
 
   environment.systemPackages = with pkgs; [

devices/server/configuration.nix

@@ -15,6 +15,8 @@
   };
   #boot.kernelModules = ["msr"];
 
+  boot.binfmt.emulatedSystems = ["aarch64-linux"];
+
   services.openssh.enable = true;
 
   services = {
@@ -29,6 +31,31 @@
         rpc-whitelist = "127.0.0.1,192.168.*.*";
       };
     };
+    prometheus = {
+      enable = true;
+      exporters = {
+        node.enable = true;
+      };
+      scrapeConfigs = [
+        {
+          job_name = "node-exporters-lan";
+          static_configs = [
+            {
+              targets = ["192.168.1.241:9100"];
+              labels = {
+                instance = "pi";
+              };
+            }
+            {
+              targets = ["127.0.0.1:9100"];
+              labels = {
+                instance = "server";
+              };
+            }
+          ];
+        }
+      ];
+    };
   };
 
   networking = {
@@ -36,6 +63,7 @@
     firewall.allowedTCPPorts = [
       8096 # jellyfin
       9091 # transmission
+      9090 # prometheus
     ];
   };
 

devices/xps13/configuration.nix

@@ -29,14 +29,14 @@
   nix = {
     settings.experimental-features = ["nix-command" "flakes"];
     settings.trusted-users = ["polen"];
-    # settings.extra-platforms = config.boot.binfmt.emulatedSystems;
+    settings.extra-platforms = config.boot.binfmt.emulatedSystems;
     gc = {
       automatic = true;
       dates = "weekly";
       options = "--delete-older-than 15d";
     };
   };
-  # boot.binfmt.emulatedSystems = ["aarch64-linux"];
+  boot.binfmt.emulatedSystems = ["aarch64-linux"];
 
   # Configure network proxy if necessary
   # networking.proxy.default = "http://user:password@proxy:port/";