tankstelle: add promtail, prometheus node-exporter

for monitoring, configure wireguard between flora-6 and tankstelle

hosts/default.nix

@@ -82,6 +82,8 @@
           ./tankstelle
           self.nixosModules.overlays
           self.nixosModules.core
+          self.nixosModules.prometheus-exporters
+          self.nixosModules.promtail
         ];
       };
     };

hosts/flora-6/wireguard.nix

@@ -38,6 +38,15 @@
           ];
           persistentKeepalive = 15;
         }
+        {
+          # tankstelle.pub.solar
+          endpoint = "80.244.242.5:51820";
+          publicKey = "iRTlY1lB7nPXf2eXzX8ZZDkfMmXyGjff5/joccbP8Cg=";
+          allowedIPs = [
+            "10.7.6.4/32"
+            "fd00:fae:fae:fae:fae:4::/96"
+          ];
+        }
       ];
     };
   };

hosts/tankstelle/wireguard.nix

@@ -28,6 +28,15 @@
             "fd00:fae:fae:fae:fae:1::/96"
           ];
         }
+        {
+          # flora-6.pub.solar
+          endpoint = "80.71.153.210:51820";
+          publicKey = "jtSR5G2P/nm9s8WrVc26Xc/SQLupRxyXE+5eIeqlsTU=";
+          allowedIPs = [
+            "10.7.6.2/32"
+            "fd00:fae:fae:fae:fae:2::/96"
+          ];
+        }
       ];
     };
   };

modules/prometheus/default.nix

@@ -59,6 +59,12 @@
               instance = "metronom";
             };
           }
+          {
+            targets = [ "tankstelle.wg.${config.pub-solar-os.networking.domain}:${toString config.services.prometheus.exporters.node.port}" ];
+            labels = {
+              instance = "tankstelle";
+            };
+          }
         ];
       }
       {