add pve exporter

hosts/monitoring/prometheus.nix

@@ -47,6 +47,36 @@
           }
         ];
       }
+      {
+        # https://github.com/prometheus-pve/prometheus-pve-exporter
+        job_name = "pve";
+        scrape_interval = "15s";
+        static_configs = [
+          {
+            targets = ["ellsberg.berlin.ccc.de"];
+          }
+        ];
+        metrics_path = "/pve";
+        params = {
+          module = [ "default" ];
+          cluster = [ "1" ];
+          node = [ "1" ];
+        };
+        relabel_configs = {
+          {
+            source_labels = [ "__address__" ];
+            target_label = "__param_target";
+          }
+          {
+            source_labels = [ "__param_target" ];
+            target_label = "instance";
+          }
+          {
+            target_label = "__address__";
+            replacement = "[::1]:${toString config.services.prometheus.exporters.pve.port}";
+          }
+        };
+      }
     ];
     ruleFiles = [
       # https://github.com/element-hq/synapse/tree/master/contrib/prometheus
@@ -88,5 +118,11 @@
             expr: 'synapse_federation_transaction_queue_pending_pdus + 0'
       '')
     ];
+    exporters.pve = {
+      enable = true;
+      listenAddress = "::1";
+      environmentFile = config.age.secrets.pve-exporter.path;
+      #configFile = "";
+    };
   };
 }

secrets/pve-exporter.age

@@ -0,0 +1,17 @@
+age-encryption.org/v1
+-> ssh-ed25519 uH+n1w Uoqf4ud/1HA+CcM5q4ZMbpexXW42XwczmBrvtp0QrUg
+JNZoz/QOsC7HSiFmD4OQMjA88wIvK4ULgxQL2gssDO4
+-> ssh-ed25519 EvLbWw HFUS8YfYepl7kugNlCSKIOk5F9upM8vTrdpfHQdWREQ
+Bn/uDmWJ6PwfVYi/8VrdK/dAehj/F+kS5x40OlzT/VA
+-> ssh-ed25519 dM+fLQ ofZx0eHAYiqutd/Nx8z85P4s2eHfGSLg9sWB/TcneGI
+EItGNBAlgyewVTgp/K5zKjqPf3hmjmbku8Y8ioye5vE
+-> ssh-ed25519 jxWM2Q XhbEOED/3M+MXp6qRaiDmx6IMCo0A72woq2b/UyxABk
+N+Irt4rkNJI/CRFnECo2WDjY66E4bGtDnd7J8HjApeo
+-> ssh-ed25519 /yCUCg bm+fzBBeV05mL2tJ7dEY3z8MDkigvVayV31wFoYK8S0
+716dxM5OBmM8tjAq+W8qtbNXkFak5BjbBTSIaOeIS5U
+-> ssh-ed25519 FGp51g BJxsxp0qd6bho/lNrKKnvdJOqtCnDuScL0XqFOe/wVI
+9rW6UqkuTm73QRSLZU4WG+PrmoxtCEzanH5eO6wlYvE
+-> ssh-ed25519 OIpN5A znlqxihSclbgiy1SV6ym3sfksc87XGEQvyxbxhTSIl4
+XPNF4NmptDODpHsCaXv6U3NUWmGAVrFW2leZhDver38
+--- r7JPlriEF1BrYyBKcVUxzto55fcQXOUo3RTJ1vlWDgs
+Me8á+—ñM¢Ž²:T^óàØŽ•?ÄÕðÑõ)•bæñYñ
”µ&|ÞØ—*9'u¥§îuã93E½¯'`”nµÿE?§c\ DÄ~FÁ•uf]õ‘vØnð|ß±<C39F>‡H‰wHˆ£ÿT¢¤
›«ð­)X·qPÖêêFWo+¦:}OsbWwžë›%ó´E&õ8ÅÜ?<12><>Î@ „GƒÌZÞŠM¦x댋Å÷’øÒ–lš+'¯M”

secrets/secrets.nix

@@ -36,6 +36,7 @@ in
   "grafana_admin_password.age".publicKeys = users ++ [ _monitoring ];
   "grafana_secret_key.age".publicKeys = users ++ [ _monitoring ];
   "grafana_basic_auth.age".publicKeys = users ++ [ _monitoring ];
+  "pve-exporter.age".publicKeys = users ++ [ _monitoring ];
 
   "postgres-matrix-synapse.age".publicKeys = users ++ [ _sql _matrix ];
   "postgres-hedgedoc.age".publicKeys = users ++ [ _sql _md ];