enable email alerting in gatus

nix/modules/monitoring/default.nix

@@ -58,6 +58,20 @@ in
       settings = {
         web.port = 4242;
         endpoints = import ./gatus-endpoints.nix;
+
+        alerting.email = {
+          from = "gatus@kun.is";
+          host = "mail.smtp2go.com";
+          port = 2525;
+          to = "pim@kunis.nl";
+          client.insecure = true;
+          default-alert = {
+            enabled = true;
+            failure-threshold = 2;
+            success-threshold = 1;
+            send-on-resolved = true;
+          };
+        };
       };
     };
   };

nix/modules/monitoring/gatus-endpoints.nix

@@ -20,7 +20,7 @@ let
         "[BODY].installed == true"
         "[BODY].maintenance == false"
         "[BODY].needsDbUpgrade == false"
-        (maxResponseTime 750)
+        (maxResponseTime 1000)
       ];
     }
     {
@@ -184,4 +184,9 @@ let
     }
   ];
 in
-map (endpoint: endpoint // { interval = "5m"; }) endpoints
+map
+  (endpoint: endpoint // {
+    interval = "5m";
+    alerts = [{ type = "email"; }];
+  })
+  endpoints

nix/modules/networking/dmz_services/zones/kun.is.nix

@@ -21,6 +21,10 @@ in
     (mx.mx 10 "mail.kun.is.")
   ];
 
+  TXT = [
+    (with spf; soft [ "include:spf.glasnet.nl" ])
+  ];
+
   subdomains = {
     "*" = {
       A = [ cfg.public.ipv4.router ];