monitoring - increase scrapeInterval to 120s, better selectors on Agent and memory decrease of agent from 360MB to 228MB

monitoring/prometheus/deploy/prometheus-agent.yaml

@@ -5,16 +5,17 @@ metadata:
   name: prometheus-agent
   namespace: monitoring
 spec:
-  serviceMonitorNamespaceSelector: {}
-  podMonitorNamespaceSelector: {}
+
+  podMonitorSelector: null
+  podMonitorNamespaceSelector: null
+  serviceMonitorNamespaceSelector:
+    matchLabels:
+      prometheus-monitoring: enabled
+
   serviceMonitorSelector:
-    matchExpressions:
-      - key: app.kubernetes.io/name
-        operator: Exists
-  podMonitorSelector:
-    matchExpressions:
-      - key: app.kubernetes.io/name
-        operator: Exists
+    matchLabels:
+      release: prometheus-stack
+
   replicas: 1
   remoteWrite:
     - url: https://prometheus.monitoring.limbosolutions.com/api/v1/write
@@ -25,7 +26,7 @@ spec:
       memory: 128Mi
     limits:
       cpu: 200m
-      memory: 512Mi
+      memory: 300Mi
   serviceAccountName: prometheus-agent
   nodeSelector:
     role: worker-node