From 6d65582af45b7e933b0dbb7d0a981681eb0c3fa9 Mon Sep 17 00:00:00 2001
From: Claude Agent <claude@stakesquid.eu>
Date: Tue, 16 Jun 2026 09:06:57 +0000
Subject: [PATCH] monitoring: scrape cadvisor/nodeexporter/telegraf at /metrics
 not /

prometheus-scrape.metrics_path was '/' which made prometheus-docker-sd scrape
the HTML root and fail with 'INVALID is not a valid start token', leaving the
targets up=0. Fixes per-container (cadvisor) + host (node_exporter) metrics so
they can be wired into the DRPC insights MCP for per-node resource attribution.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 cadvisor.yml     | 1 +
 monitoring.yml   | 6 +++---
 nodeexporter.yml | 1 +
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/cadvisor.yml b/cadvisor.yml
index 9ef55294..49f841d5 100644
--- a/cadvisor.yml
+++ b/cadvisor.yml
@@ -18,6 +18,7 @@ services:
       - "prometheus-scrape.enabled=true"
       - "prometheus-scrape.port=8080"
       - "prometheus-scrape.job_name=cadvisor"
+      - "prometheus-scrape.metrics_path=/metrics"
       - "org.label-schema.group=monitoring"
     networks:
       - monitoring
diff --git a/monitoring.yml b/monitoring.yml
index 5acdc320..b1800360 100644
--- a/monitoring.yml
+++ b/monitoring.yml
@@ -183,7 +183,7 @@ services:
       - "prometheus-scrape.enabled=true"
       - "prometheus-scrape.port=9273"
       - "prometheus-scrape.job_name=telegraf"
-      - "prometheus-scrape.metrics_path=/"
+      - "prometheus-scrape.metrics_path=/metrics"
 
   cadvisor:
     image: gcr.io/cadvisor/cadvisor
@@ -205,7 +205,7 @@ services:
       - "prometheus-scrape.enabled=true"
       - "prometheus-scrape.port=8080"
       - "prometheus-scrape.job_name=cadvisor"
-      - "prometheus-scrape.metrics_path=/"
+      - "prometheus-scrape.metrics_path=/metrics"
 
   nodeexporter:
     image: prom/node-exporter
@@ -228,7 +228,7 @@ services:
       - "prometheus-scrape.enabled=true"
       - "prometheus-scrape.port=9100"
       - "prometheus-scrape.job_name=nodeexporter"
-      - "prometheus-scrape.metrics_path=/"
+      - "prometheus-scrape.metrics_path=/metrics"
 
 volumes:
   prometheus_data:
diff --git a/nodeexporter.yml b/nodeexporter.yml
index a7221f51..51664307 100644
--- a/nodeexporter.yml
+++ b/nodeexporter.yml
@@ -18,6 +18,7 @@ services:
       - "prometheus-scrape.enabled=true"
       - "prometheus-scrape.port=9100"
       - "prometheus-scrape.job_name=nodeexporter"
+      - "prometheus-scrape.metrics_path=/metrics"
       - "org.label-schema.group=monitoring"
     networks:
       - monitoring