monitoring: multiple changes

- remove OpenWRT, systemd, influxdb and pihole configs (I'll think about
them later)
- remove telegraf
- enable prometheus + node-exporter
- grafana: update domain

modules/monitoring/monitoring.nix

@@ -26,42 +26,18 @@ in
 
     # Collect data with conveniently declared 'scrapers'
     prometheus = {
-      enable = false;
+      enable = true;
       port = 9001;
 
       # Enable prometheus to collect data from systemd
       exporters = {
         node = {
-          enable = false;
+          enable = true;
           enabledCollectors = [
             "systemd"
-            "influxdb"
-            "pihole"
           ];
           port = 9002;
         };
-
-        systemd = {
-          enable = false;
-          user = "root";
-          openFirewall = false;
-        };
-
-        influxdb = {
-          enable = false;
-          user = "influxdb";
-          openFirewall = true;
-        };
-
-        pihole = {
-          enable = false;
-          openFirewall = false;
-          piholeHostname = "localhost";
-          piholePort = 3080;
-          protocol = "http";
-          user = "payas";
-          password = "sagittariusa"; # password for pi-hole web UI
-        };
       };
 
       # Tell prometheus to collect data from defined exporters
@@ -69,77 +45,16 @@ in
       # Maybe this is for when exporter and scraper are on separate instances?
       scrapeConfigs = [
         {
-          job_name = "bebop-node";
+          job_name = "prometheus-exporters";
           static_configs = [{
             targets = [
               "127.0.0.1:${toString config.services.prometheus.exporters.node.port}"
             ];
           }];
         }
-        {
-          job_name = "bebop-systemd";
-          static_configs = [{
-            targets = [
-              "127.0.0.1:${toString config.services.prometheus.exporters.systemd.port}"
-            ];
-          }];
-        }
-        {
-          job_name = "influxdb";
-          static_configs = [{
-            targets = [
-              "127.0.0.1:${toString config.services.prometheus.exporters.influxdb.port}"
-            ];
-          }];
-        }
-        {
-          job_name = "pi-hole";
-          static_configs = [{
-            targets = [
-              "127.0.0.1:${toString config.services.prometheus.exporters.pihole.piholePort}"
-            ];
-          }];
-        }
-        {
-          job_name = "OpenWRT";
-          static_configs = [{
-            targets = [
-              "192.168.0.1:${toString config.services.prometheus.exporters.node.port}"
-            ];
-          }];
-        }
       ];
     };
 
-    influxdb = {
-      enable = false;
-      # dataDir = "~/.config/influxdb";
-    };
-
-    telegraf = {
-      enable = false;
-      extraConfig = {
-        inputs = {
-          # zfs = { poolMetrics = true; };
-          net = {
-            interfaces = [ "eth0" "wlan0" ];
-          };
-          netstat = { };
-          cpu = { totalcpu = true; };
-          kernel = { };
-          mem = { };
-          processes = { };
-          system = { };
-        };
-        outputs = {
-          influxdb = {
-            database = "telegraf";
-            urls = [ "http://localhost:8086" ];
-          };
-        };
-      };
-    };
-
     # Show data with fancy graphs
     grafana = {
       enable = true;
@@ -152,7 +67,7 @@ in
         };
         analytics.reporting_enabled = false;
         server = {
-          domain = "localhost";
+          domain = "bebop.bhankas.org";
           http_port = 2342;
           http_addr = "0.0.0.0";
         };