From 2177a8009ed49bd44dd9be97ce2fd4a19202aac2 Mon Sep 17 00:00:00 2001
From: Brad Stein <Brad.Stein@gmail.com>
Date: Sat, 13 Dec 2025 11:48:44 -0300
Subject: [PATCH] atlas pods: robust per-namespace top-node share

---
 scripts/dashboards_render_atlas.py              | 11 ++++++++---
 services/monitoring/dashboards/atlas-pods.json  |  2 +-
 services/monitoring/grafana-dashboard-pods.yaml |  2 +-
 3 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/scripts/dashboards_render_atlas.py b/scripts/dashboards_render_atlas.py
index 8af8089..9a2f84e 100644
--- a/scripts/dashboards_render_atlas.py
+++ b/scripts/dashboards_render_atlas.py
@@ -1177,11 +1177,16 @@ def build_pods_dashboard():
             10,
             "Namespace Plurality by Node",
             '('
+            ' sum by (namespace,node) (kube_pod_info{pod!=""}) '
+            '/ sum by (namespace) (kube_pod_info{pod!=""})'
+            ')'
+            '* on(namespace) group_left(node)'
+            '('
             ' (sum by (namespace,node) (kube_pod_info{pod!=""}) '
             '   / sum by (namespace) (kube_pod_info{pod!=""})) '
-            '== on(namespace) '
-            ' max by (namespace) (sum by (namespace,node) (kube_pod_info{pod!=""}) '
-            '   / sum by (namespace) (kube_pod_info{pod!=""}))'
+            '>= on(namespace) group_left() '
+            ' (max by (namespace) (sum by (namespace,node) (kube_pod_info{pod!=""}) '
+            '   / sum by (namespace) (kube_pod_info{pod!=""})) - 1e-9)'
             ')',
             {"h": 8, "w": 24, "x": 0, "y": 42},
             unit="percent",
diff --git a/services/monitoring/dashboards/atlas-pods.json b/services/monitoring/dashboards/atlas-pods.json
index 07a9b1b..a9f26c2 100644
--- a/services/monitoring/dashboards/atlas-pods.json
+++ b/services/monitoring/dashboards/atlas-pods.json
@@ -508,7 +508,7 @@
       },
       "targets": [
         {
-          "expr": "( (sum by (namespace,node) (kube_pod_info{pod!=\"\"})    / sum by (namespace) (kube_pod_info{pod!=\"\"})) == on(namespace)  max by (namespace) (sum by (namespace,node) (kube_pod_info{pod!=\"\"})    / sum by (namespace) (kube_pod_info{pod!=\"\"})))",
+          "expr": "( sum by (namespace,node) (kube_pod_info{pod!=\"\"}) / sum by (namespace) (kube_pod_info{pod!=\"\"}))* on(namespace) group_left(node)( (sum by (namespace,node) (kube_pod_info{pod!=\"\"})    / sum by (namespace) (kube_pod_info{pod!=\"\"})) >= on(namespace) group_left()  (max by (namespace) (sum by (namespace,node) (kube_pod_info{pod!=\"\"})    / sum by (namespace) (kube_pod_info{pod!=\"\"})) - 1e-9))",
           "refId": "A",
           "instant": true
         }
diff --git a/services/monitoring/grafana-dashboard-pods.yaml b/services/monitoring/grafana-dashboard-pods.yaml
index 17a8618..182885c 100644
--- a/services/monitoring/grafana-dashboard-pods.yaml
+++ b/services/monitoring/grafana-dashboard-pods.yaml
@@ -517,7 +517,7 @@ data:
           },
           "targets": [
             {
-              "expr": "( (sum by (namespace,node) (kube_pod_info{pod!=\"\"})    / sum by (namespace) (kube_pod_info{pod!=\"\"})) == on(namespace)  max by (namespace) (sum by (namespace,node) (kube_pod_info{pod!=\"\"})    / sum by (namespace) (kube_pod_info{pod!=\"\"})))",
+              "expr": "( sum by (namespace,node) (kube_pod_info{pod!=\"\"}) / sum by (namespace) (kube_pod_info{pod!=\"\"}))* on(namespace) group_left(node)( (sum by (namespace,node) (kube_pod_info{pod!=\"\"})    / sum by (namespace) (kube_pod_info{pod!=\"\"})) >= on(namespace) group_left()  (max by (namespace) (sum by (namespace,node) (kube_pod_info{pod!=\"\"})    / sum by (namespace) (kube_pod_info{pod!=\"\"})) - 1e-9))",
               "refId": "A",
               "instant": true
             }