hosts/library: extract prometheus config

hosts/library/default.nix

@@ -4,6 +4,7 @@
   imports = [
     ./hardware-configuration.nix
     ./grafana.nix
+    ./prometheus.nix
     ../server.nix
   ];
 
@@ -47,35 +48,6 @@
     enable = true;
   };
 
-  services.prometheus = {
-    enable = true;
-    port = 9001;
-    exporters = {
-      node = {
-        enable = true;
-        enabledCollectors = [ "systemd" ];
-        port = 9002;
-      };
-      zfs = {
-        enable = true;
-        port = 9003;
-      };
-    };
-    scrapeConfigs = [
-      {
-        job_name = "node";
-        static_configs = [
-          {
-            targets = [
-              "127.0.0.1:${toString config.services.prometheus.exporters.node.port}"
-              "127.0.0.1:${toString config.services.prometheus.exporters.zfs.port}"
-            ];
-          }
-        ];
-      }
-    ];
-  };
-
   systemd.services.vps1-tunnel = {
     enable = true;
     description = "vps1.mesh.vimium.net SSH tunnel";

hosts/library/prometheus.nix

@@ -0,0 +1,35 @@
+{
+  config,
+  ...
+}:
+
+{
+  services.prometheus = {
+    enable = true;
+    port = 9001;
+    exporters = {
+      node = {
+        enable = true;
+        enabledCollectors = [ "systemd" ];
+        port = 9002;
+      };
+      zfs = {
+        enable = true;
+        port = 9003;
+      };
+    };
+    scrapeConfigs = [
+      {
+        job_name = "node";
+        static_configs = [
+          {
+            targets = [
+              "127.0.0.1:${toString config.services.prometheus.exporters.node.port}"
+              "127.0.0.1:${toString config.services.prometheus.exporters.zfs.port}"
+            ];
+          }
+        ];
+      }
+    ];
+  };
+}