From 4e6b076f1e629670229e6e3c53e43f818f4f2d62 Mon Sep 17 00:00:00 2001
From: Max Audron <audron@cocaine.farm>
Date: Fri, 1 Aug 2025 00:47:20 +0200
Subject: more monitoring & scrape config shortcuts

---
 lib/default.nix            |  3 ++-
 lib/monitoring/default.nix | 20 ++++++++++++++++++++
 lib/nginx/default.nix      |  2 +-
 3 files changed, 23 insertions(+), 2 deletions(-)
 create mode 100644 lib/monitoring/default.nix

(limited to 'lib')

diff --git a/lib/default.nix b/lib/default.nix
index 61c0760..5aecf51 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -4,10 +4,11 @@
   flake = {
     lib =
       let
-        callLibs = file: import file { inherit lib; };
+        callLibs = file: import file { inherit lib config; };
       in
       {
         nginx = callLibs ./nginx;
+        mon = callLibs ./monitoring;
       };
   };
 }
diff --git a/lib/monitoring/default.nix b/lib/monitoring/default.nix
new file mode 100644
index 0000000..2c7c3cf
--- /dev/null
+++ b/lib/monitoring/default.nix
@@ -0,0 +1,20 @@
+{ config, lib }:
+
+rec {
+  mkTarget = host: port: {
+    targets = [ "${host}:${toString port}" ];
+  };
+
+  mkScrapeConfig = name: hosts: port:  {
+    job_name = name; 
+    static_configs = map (host: mkTarget host port) hosts; 
+    relabel_configs = relabelConfig;
+  };
+
+  relabelConfig = [{
+    source_labels = ["__address__"];
+    target_label = "host";
+    regex = "([^:]+)(:[0-9]+)?";
+    replacement = "\${1}";
+  }];
+}
diff --git a/lib/nginx/default.nix b/lib/nginx/default.nix
index 1f0f482..c6b6da2 100644
--- a/lib/nginx/default.nix
+++ b/lib/nginx/default.nix
@@ -1,4 +1,4 @@
-{ lib }:
+{ lib, ... }:
 
 {
   proxyDomain = cert: proxyPass: {
-- 
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