Merge pull request #77 from grafana/filter_cadvisor_kubelet_metrics_on_namespace

Only get cadvisor and kubelet metrics from the required namespaces

.gitignore

@@ -1 +1,2 @@
-production/
+.DS_Store
+production/

charts/meta-monitoring/templates/agent/_helpers-agent.tpl

@@ -6,6 +6,15 @@
 {{- join ", " $list }}
 {{- end }}
 
+{{- define "agent.all_namespaces" -}}
+{{- $list := list }}
+{{- range .Values.namespacesToMonitor }}
+{{- $list = append $list (printf "\"%s\"" .) }}
+{{- end }}
+{{- $list = append $list .Release.Namespace }}
+{{- join "|" $list }}
+{{- end }}
+
 {{- define "agent.loki_write_targets" -}}
 {{- $list := list }}
 {{- if .Values.local.logs.enabled }}

charts/meta-monitoring/templates/agent/config.yaml

@@ -137,6 +137,13 @@ data:
         action = "keep"
       }
 
+      rule {
+        source_labels = ["namespace"]
+        regex = "{{ include "agent.all_namespaces" . }}""
+
+        action = "keep"
+      }
+
       forward_to = [ {{ include "agent.prometheus_write_targets" . }} ]
     }
     {{- if .Values.kubeStateMetrics.enabled }}
@@ -154,6 +161,10 @@ data:
     // Based on https://github.com/Chewie/loutretelecom-manifests/blob/main/manifests/addons/monitoring/config.river
     discovery.kubernetes "all_nodes" {
       role = "node"
+      namespaces {
+        own_namespace = true
+        names = [ {{ include "agent.namespaces" . }} ]
+      }
     }
 
     discovery.relabel "all_nodes" {