tweak(tente): send Grafana alerts via email instead of Matrix

Less moving parts. Instead of:

    Grafana -> Forwarder -> Conduit -> UnifiedPush? -> Matrix client

just

    Grafana -> Mail server -> Mail client

4 files changed, 18 insertions, 19 deletions

diff --git a/nixos/hosts/tente/default.nix b/nixos/hosts/tente/default.nix
index 8297fc9..2dcfe62 100644
--- a/nixos/hosts/tente/default.nix
+++ b/nixos/hosts/tente/default.nix
@@ -102,8 +102,6 @@ in
 
   grafana = {
     port = ports.grafana;
-    matrixForwarderPort = ports.grafanaMatrixForwarder;
-    matrixServerUrl = "http://localhost:${toString ports.matrix}";
   };
 
   headscale = {
diff --git a/nixos/hosts/tente/grafana.nix b/nixos/hosts/tente/grafana.nix
index 73ea0d3..f6db5ca 100644
--- a/nixos/hosts/tente/grafana.nix
+++ b/nixos/hosts/tente/grafana.nix
@@ -9,20 +9,13 @@ in
     port = lib.mkOption {
       type = lib.types.int;
     };
-    matrixForwarderPort = lib.mkOption {
-      type = lib.types.int;
-    };
-    matrixServerUrl = lib.mkOption {
-      type = lib.types.str;
-    };
   };
 
-  imports = [
-    <top/shared/grafana-matrix-forwarder/service.nix>
-  ];
-
   config = {
-    age.secrets.grafana-matrix-forwarder-env.file = ./secrets/grafana-matrix-forwarder-env.age;
+    age.secrets.alerts-smtp = {
+      file = ./secrets/alerts-smtp.age;
+      owner = "grafana";
+    };
 
     services.grafana = {
       enable = true;
@@ -31,6 +24,13 @@ in
           http_addr = "0.0.0.0";
           http_port = cfg.port;
         };
+        smtp = rec {
+          enabled = true;
+          host = "smtp.migadu.com:465";
+          user = "alerts@push-f.com";
+          from_address = user;
+          password = "$__file{${config.age.secrets.alerts-smtp.path}}";
+        };
       };
 
       provision = {
@@ -61,11 +61,5 @@ in
         ];
       };
     };
-    services.grafana-matrix-forwarder = {
-      enable = true;
-      port = cfg.matrixForwarderPort;
-      homeserver = cfg.matrixServerUrl;
-      environmentFile = config.age.secrets.grafana-matrix-forwarder-env.path;
-    };
   };
 }
diff --git a/nixos/hosts/tente/secrets/alerts-smtp.age b/nixos/hosts/tente/secrets/alerts-smtp.age
new file mode 100644
index 0000000..d673690
--- /dev/null
+++ b/nixos/hosts/tente/secrets/alerts-smtp.age
@@ -0,0 +1,7 @@
+age-encryption.org/v1
+-> ssh-ed25519 aqtcmw knuL8pL0ot3fE042Apaw2CVQ19E8poqNsSznVcqAtSg
+Dp6+7IShnd8MZrSYjh0LqGH7HUc3Tji/76dQCVIwzMA
+-> ssh-ed25519 PMTW+A nvriZ1urwJLuEpCbiZxrKu4juhASLSAQFBA9h4pLzxQ
+zqYNxGJLyl6TU0doc3+BLLvek09cgZ1NS4cO+mx7BPo
+--- 8T5MKNAsvZMtgfIAL3OIKnXeBA3uJkqvQ9SPYwg9p2A
+\Ä MKxª–l>µ¥s­œ™DÿÒ”9;‰}#’øL<G+ŠR|‚2ÿe‚"2¸TO½µ§
\ No newline at end of file
diff --git a/nixos/hosts/tente/secrets/grafana-matrix-forwarder-env.age b/nixos/hosts/tente/secrets/grafana-matrix-forwarder-env.age
deleted file mode 100644
index 84cab14..0000000
--- a/nixos/hosts/tente/secrets/grafana-matrix-forwarder-env.age
+++ /dev/null