From 2358a8a7106136866e43ab9c80752e18f5605763 Mon Sep 17 00:00:00 2001
From: "Pai, Radhika (rp592h)" <rp592h@att.com>
Date: Thu, 26 Sep 2019 15:46:28 +0000
Subject: [PATCH] Prometheus: Relabeling the node-exporter label

Added the reblabeling config lines to the kubernetes_sd_config key, to
replace the node_name with hostname for Node-exporter. This must now
display the hostname also as one of the labels of the Node-exporter
metrics.

Change-Id: Ic96a890552a1cd2f5e595c37330de048f31a0e75
---
 prometheus/values.yaml | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/prometheus/values.yaml b/prometheus/values.yaml
index e16b6d85f..3bd53a07d 100644
--- a/prometheus/values.yaml
+++ b/prometheus/values.yaml
@@ -908,6 +908,19 @@ conf:
               - __meta_kubernetes_service_name
             target_label: job
             replacement: ${1}
+        - job_name: 'node-exporter'
+          kubernetes_sd_configs:
+          - role: endpoints
+          scrape_interval: 60s
+          relabel_configs:
+          - source_labels:
+              - __meta_kubernetes_service_name
+            action: keep
+            regex: 'node-exporter'
+          - source_labels:
+              - __meta_kubernetes_pod_node_name
+            action: replace
+            target_label: hostname
         - job_name: 'kubernetes-service-endpoints'
           kubernetes_sd_configs:
           - role: endpoints
@@ -916,7 +929,7 @@ conf:
           - source_labels:
               - __meta_kubernetes_service_name
             action: drop
-            regex: '(openstack-metrics|prom-metrics|ceph-mgr)'
+            regex: '(openstack-metrics|prom-metrics|ceph-mgr|node-exporter)'
           - source_labels:
               - __meta_kubernetes_service_annotation_prometheus_io_scrape
             action: keep