Add osmium to monitoring

hosts/monitoring-3/configuration.nix

@@ -1,6 +1,29 @@
-{ config, pkgs, ... }:
+{ config, pkgs, lib, ... }:
 
-{
+with lib;
+
+let
+  hosts = (import ../../lib/hosts.nix { inherit pkgs; }).hosts;
+
+  monitoringHosts = filterAttrs (name: host:
+    attrByPath ["clerie" "monitoring" "enable"] false host.config)
+    hosts;
+
+  monitoringHostsNames = mapAttrs' (name: host:
+    nameValuePair "fd00:327:327:327::${host.config.clerie.monitoring.id}"  ["${host.config.networking.hostName}.mon.clerie.de"])
+    monitoringHosts;
+
+  monitoringPeers = mapAttrsToList (name: host: {
+      allowedIPs = [ "fd00:327:327:327::${host.config.clerie.monitoring.id}/128" ];
+      publicKey = host.config.clerie.monitoring.pubkey;
+    })
+    monitoringHosts;
+
+  monitoringTargets = mapAttrsToList (name: host:
+    "${host.config.networking.hostName}.mon.clerie.de:9100")
+    monitoringHosts;
+
+in {
   imports =
     [
       ./hardware-configuration.nix
@@ -23,21 +46,15 @@
 
   networking.hosts = {
     "fd00:327:327:327::1" = [ "monitoring-3.mon.clerie.de" ];
-    "fd00:327:327:327::102" = [ "porter.mon.clerie.de" ];
-  };
+  }
+  // monitoringHostsNames;
 
   networking.wireguard.enable = true;
   networking.wireguard.interfaces = {
     wg-monitoring = {
       ips = [ "fd00:327:327:327::1/64" ];
       listenPort = 54523;
-      peers = [
-        {
-          # porter
-          allowedIPs = [ "fd00:327:327:327::102/128" ];
-          publicKey = "+mJN+ustPo2ehP0wqajYs3nTdJ0SPuIDyiZQSHFIK3o=";
-        }
-      ];
+      peers = monitoringPeers;
       privateKeyFile = "/var/src/secrets/wireguard/wg-monitoring";
     };
   };
@@ -69,8 +86,8 @@
           {
             targets = [
               "monitoring-3.mon.clerie.de:9100"
-              "porter.mon.clerie.de:9100"
-            ];
+            ]
+            ++ monitoringTargets;
           }
         ];
       }

hosts/osmium/configuration.nix

@@ -27,5 +27,11 @@
     git
   ];
 
+  clerie.monitoring = {
+    enable = true;
+    id = "201";
+    pubkey = "REWaiNU9AFSdDEL532XvcRul/rC79ZUfc7NOlwPSZzM=";
+  };
+
   system.stateVersion = "21.03";
 }

hosts/porter/configuration.nix

@@ -168,7 +168,7 @@
   clerie.monitoring = {
     enable = true;
     id = "102";
-    pubkey = "";
+    pubkey = "+mJN+ustPo2ehP0wqajYs3nTdJ0SPuIDyiZQSHFIK3o=";
   };
 
   system.stateVersion = "21.03";