From 3a4628aef94f09353cd3c88c005cf6d45a2dafe0 Mon Sep 17 00:00:00 2001
From: notohh <github@notohh.dev>
Date: Tue, 17 Oct 2023 02:45:11 -0400
Subject: [PATCH] modules: move prometheus to dedicated folder

---
 modules/README.md                                |  1 +
 modules/default.nix                              |  2 +-
 .../{prometheus.nix => prometheus/default.nix}   | 16 +++++++++++++---
 modules/prometheus/exporters/postgres.nix        |  7 +++++++
 modules/prometheus/exporters/redis.nix           |  7 +++++++
 5 files changed, 29 insertions(+), 4 deletions(-)
 rename modules/{prometheus.nix => prometheus/default.nix} (59%)
 create mode 100644 modules/prometheus/exporters/postgres.nix
 create mode 100644 modules/prometheus/exporters/redis.nix

diff --git a/modules/README.md b/modules/README.md
index 8f37655..466a5df 100644
--- a/modules/README.md
+++ b/modules/README.md
@@ -4,6 +4,7 @@ this directory hosts some common modules / services / security tweaks used on (m
 
 name            | description
 --------------- | -----------
+`prometheus`    | has default prometheus config for all hosts, along with exporters for select hosts
 `default`       | used for commonly shared modules
 `fonts`         | font handling
 `greetd`        | login manager
diff --git a/modules/default.nix b/modules/default.nix
index 5c8b421..c7048be 100644
--- a/modules/default.nix
+++ b/modules/default.nix
@@ -1,6 +1,7 @@
 {inputs, ...}: {
   imports = [
     inputs.nh.nixosModules.default
+    ./prometheus
     ./security.nix
     ./networking.nix
     ./users.nix
@@ -9,6 +10,5 @@
     ./openssh.nix
     ./virtualisation.nix
     ./sops.nix
-    ./prometheus.nix
   ];
 }
diff --git a/modules/prometheus.nix b/modules/prometheus/default.nix
similarity index 59%
rename from modules/prometheus.nix
rename to modules/prometheus/default.nix
index 51ee113..9d86e41 100644
--- a/modules/prometheus.nix
+++ b/modules/prometheus/default.nix
@@ -5,19 +5,29 @@ _: {
     scrapeConfigs = [
       {
         job_name = "prometheus";
-        scrape_interval = "30s";
+        scrape_interval = "15s";
         static_configs = [{targets = ["localhost:9090"];}];
       }
       {
         job_name = "node";
-        scrape_interval = "30s";
+        scrape_interval = "15s";
         static_configs = [{targets = ["localhost:9100"];}];
       }
       {
         job_name = "traefik";
-        scrape_interval = "30s";
+        scrape_interval = "15s";
         static_configs = [{targets = ["100.87.54.48:8080"];}];
       }
+      {
+        job_name = "redis_exporter";
+        scrape_interval = "15s";
+        static_configs = [{targets = ["100.94.214.100:9002"];}];
+      }
+      {
+        job_name = "postgres";
+        scrape_interval = "15s";
+        static_configs = [{targets = ["100.94.214.100:9003"];}];
+      }
     ];
     exporters = {
       node = {
diff --git a/modules/prometheus/exporters/postgres.nix b/modules/prometheus/exporters/postgres.nix
new file mode 100644
index 0000000..a1ffc5a
--- /dev/null
+++ b/modules/prometheus/exporters/postgres.nix
@@ -0,0 +1,7 @@
+_: {
+  services.prometheus.exporters.postgres = {
+    enable = true;
+    openFirewall = true;
+    port = 9003;
+  };
+}
\ No newline at end of file
diff --git a/modules/prometheus/exporters/redis.nix b/modules/prometheus/exporters/redis.nix
new file mode 100644
index 0000000..4e03ff9
--- /dev/null
+++ b/modules/prometheus/exporters/redis.nix
@@ -0,0 +1,7 @@
+_: {
+  services.prometheus.exporters.redis = {
+    enable = true;
+    openFirewall = true;
+    port = 9002;
+  };
+}