From 271e43040c2afd50b86e7eccbbf9450b26410000 Mon Sep 17 00:00:00 2001
From: prescientmoon <git@moonythm.dev>
Date: Sat, 24 Feb 2024 10:21:11 +0100
Subject: [PATCH] Set up prometheus nginx exporter

---
 hosts/nixos/common/optional/services/nginx.nix |  1 +
 hosts/nixos/lapetus/services/prometheus.nix    | 13 +++++++++++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/hosts/nixos/common/optional/services/nginx.nix b/hosts/nixos/common/optional/services/nginx.nix
index 8eddfaa..78fa5ec 100644
--- a/hosts/nixos/common/optional/services/nginx.nix
+++ b/hosts/nixos/common/optional/services/nginx.nix
@@ -6,5 +6,6 @@
     recommendedOptimisation = true;
     recommendedProxySettings = true;
     recommendedTlsSettings = true;
+    statusPage = true; # Necessary for prometheus exporter
   };
 }
diff --git a/hosts/nixos/lapetus/services/prometheus.nix b/hosts/nixos/lapetus/services/prometheus.nix
index f284089..b4b775a 100644
--- a/hosts/nixos/lapetus/services/prometheus.nix
+++ b/hosts/nixos/lapetus/services/prometheus.nix
@@ -10,19 +10,28 @@ in
     port = 8410;
     webExternalUrl = "https://${host}";
 
-    # {{{ Node exporter (system info)
+    # {{{ Base exporters
     exporters = {
+      # System info
       node = {
         enable = true;
         enabledCollectors = [ "systemd" ];
         port = 8411;
       };
+
+      nginx = {
+        enable = true;
+        port = 8412;
+      };
     };
 
     scrapeConfigs = [{
       job_name = "lapetus";
       static_configs = [{
-        targets = [ "127.0.0.1:${toString config.services.prometheus.exporters.node.port}" ];
+        targets = [
+          "127.0.0.1:${toString config.services.prometheus.exporters.node.port}"
+          "127.0.0.1:${toString config.services.prometheus.exporters.nginx.port}"
+        ];
       }];
     }];
     # }}}