From d699fd578c22d9c214c9a44158cb171a197f03fd Mon Sep 17 00:00:00 2001
From: mirsal <mirsal@mirsal.fr>
Date: Sun, 14 Jun 2026 16:17:05 +0000
Subject: [PATCH] roles: prometheus: templates: scrape-main: remove useless
 systemd labels

Remove unused high-cardinality node_systemd_unit_state labels
---
 ansible/roles/prometheus/templates/scrape-main.yml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ansible/roles/prometheus/templates/scrape-main.yml b/ansible/roles/prometheus/templates/scrape-main.yml
index 9f77baa..cfed329 100644
--- a/ansible/roles/prometheus/templates/scrape-main.yml
+++ b/ansible/roles/prometheus/templates/scrape-main.yml
@@ -20,3 +20,8 @@ scrape_configs:
          - reverse-proxy.labolyon.dn42:9100
          - wiki.labolyon.dn42:9100
          - zigbee2mqtt.labolyon.dn42:9100
+    metric_relabel_configs:
+      - source_labels: [__name__, state]
+        separator: '_'
+        regex: node_systemd_unit_state_[^f].*
+        action: drop