From e6f02ea7fffa63c177924c0261b8eeecb11ebee2 Mon Sep 17 00:00:00 2001
From: Joe Clarke <jclarke@marcuscom.com>
Date: Sun, 21 Jul 2024 14:03:32 -0400
Subject: [PATCH] Add support for Prometheus pushgateway basic auth (#16230)

Co-authored-by: Joe Clarke <jclarke@cisco.com>
---
 LibreNMS/Data/Store/Prometheus.php   |  6 ++++++
 doc/Extensions/metrics/Prometheus.md |  8 ++++++++
 misc/config_definitions.json         | 14 ++++++++++++++
 3 files changed, 28 insertions(+)

diff --git a/LibreNMS/Data/Store/Prometheus.php b/LibreNMS/Data/Store/Prometheus.php
index 54676d9a4b..1fc0c03150 100644
--- a/LibreNMS/Data/Store/Prometheus.php
+++ b/LibreNMS/Data/Store/Prometheus.php
@@ -51,6 +51,12 @@ class Prometheus extends BaseDatastore
 
         $this->client = Http::client()->baseUrl($this->base_uri);
 
+        $user = Config::get('prometheus.user', '');
+        $passwd = Config::get('prometheus.password', '');
+        if ($user && $passwd) {
+            $this->client = $this->client->withBasicAuth($user, $passwd);
+        }
+
         $this->prefix = Config::get('prometheus.prefix', '');
         if ($this->prefix) {
             $this->prefix = "$this->prefix" . '_';
diff --git a/doc/Extensions/metrics/Prometheus.md b/doc/Extensions/metrics/Prometheus.md
index c0f98b2d51..644d037c47 100644
--- a/doc/Extensions/metrics/Prometheus.md
+++ b/doc/Extensions/metrics/Prometheus.md
@@ -35,6 +35,14 @@ continue to function as normal.
     lnms config:set prometheus.prefix 'librenms'
     ```
 
+If your pushgateway uses basic authentication, configure the following:
+
+!!! setting "poller/prometheus"
+    ```bash
+    lnms config:set prometheus.user username
+    lnms config:set prometheus.password password
+    ```
+
 ## Prefix
 
 Setting the 'prefix' option will cause all metric names to begin with 
diff --git a/misc/config_definitions.json b/misc/config_definitions.json
index e6d574814b..9016eeb393 100644
--- a/misc/config_definitions.json
+++ b/misc/config_definitions.json
@@ -5524,6 +5524,20 @@
             "section": "prometheus",
             "order": 4
         },
+        "prometheus.user": {
+            "default": "",
+            "type": "text",
+            "group": "poller",
+            "section": "prometheus",
+            "order": 5
+        },
+        "prometheus.password": {
+            "default": "",
+            "type": "text",
+            "group": "poller",
+            "section": "prometheus",
+            "order": 6
+        },
         "public_status": {
             "default": false,
             "group": "auth",