From 2bbe5732b774d42553a22e6240bb6e570acc4cd9 Mon Sep 17 00:00:00 2001
From: Ilya Margolin <ilya@ulani.de>
Date: Mon, 31 Jan 2022 15:08:23 +0100
Subject: [PATCH] Add node label to etcd metrics (#8475)

targetRef on endpoints surfaces as
__meta_kubernetes_endpoint_address_target_kind/__meta_kubernetes_endpoint_address_target_name
in prometheus and gets converted to the label `node` by
prometheus-operator
---
 .../ansible/templates/etcd_metrics-endpoints.yml.j2          | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/roles/kubernetes-apps/ansible/templates/etcd_metrics-endpoints.yml.j2 b/roles/kubernetes-apps/ansible/templates/etcd_metrics-endpoints.yml.j2
index d8b4bcd90..18f515d18 100644
--- a/roles/kubernetes-apps/ansible/templates/etcd_metrics-endpoints.yml.j2
+++ b/roles/kubernetes-apps/ansible/templates/etcd_metrics-endpoints.yml.j2
@@ -7,9 +7,12 @@ metadata:
     k8s-app: etcd
     app.kubernetes.io/managed-by: Kubespray
 subsets:
-{% for etcd_metrics_address in etcd_metrics_addresses.split(',') %}
+{% for etcd_metrics_address, etcd_host in etcd_metrics_addresses.split(',') | zip(etcd_hosts) %}
   - addresses:
       - ip: {{ etcd_metrics_address | urlsplit('hostname') }}
+        targetRef:
+          kind: Node
+          name: {{ etcd_host }}
     ports:
       - name: http-metrics
         port: {{ etcd_metrics_address | urlsplit('port') }}