defiant: add uptime-kuma, rename metrics->monitoring

README.md

@@ -40,9 +40,10 @@ Other installed packages and tools are described in the config files (like ./hos
 
 ## Monitoring
 
-- Prometheus ([source](./hosts/defiant/services/metrics/prometheus.nix)) - Pull-based metrics system that fetches metrics over HTTP from a range of exporters and stores them in a time-series database
+- Prometheus ([source](./hosts/defiant/services/monitoring/prometheus.nix)) - Pull-based metrics system that fetches metrics over HTTP from a range of exporters and stores them in a time-series database
-- Loki ([source](./hosts/defiant/services/metrics/loki.nix)) - Central logging for all my hosts
+- Loki ([source](./hosts/defiant/services/monitoring/loki.nix)) - Central logging for all my hosts
-- Grafana ([source](./hosts/defiant/services/metrics/grafana.nix)) - Visualization and alerting for all my metrics and logs
+- Grafana ([source](./hosts/defiant/services/monitoring/grafana.nix)) - Visualization and alerting for all my metrics and logs
+- Uptime-Kuma ([source](./hosts/defiant/services/monitoring/uptime-kuma.nix)) - Uptime / health check with alerting
 
 ## Dotfiles and user tools
 

hosts/defiant/configuration.nix

@@ -21,7 +21,7 @@
       ./services/hedgedoc.nix
       ./services/home-assistant.nix
       ./services/matrix
-      ./services/metrics
+      ./services/monitoring
       ./services/microbin.nix
       ./services/minecraft.nix
       ./services/vaultwarden.nix

hosts/defiant/services/monitoring/default.nix

@@ -6,5 +6,6 @@
     ./grafana.nix
     ./loki.nix
     ./snmp-exporter.nix
+    ./uptime-kuma.nix
   ];
 }

hosts/defiant/services/monitoring/uptime-kuma.nix

@@ -0,0 +1,16 @@
+{ config, pkgs, lib, ... }:
+let
+  cfg = config.services.uptime-kuma;
+in {
+  services.uptime-kuma = {
+    enable = true;
+    settings = {
+      PORT = "5059";
+      HOST = "127.0.1.2";
+    };
+  };
+
+  services.nginx.virtualHosts."uptime.home.feal.no" = {
+    locations."/".proxyPass = "http://${cfg.settings.HOST}:${cfg.settings.PORT}";
+  };
+}