fix: optimize central storage logging configuration to resolve hourly log bursts

- Change start_at from beginning to end to avoid historical log duplication
- Add poll_interval: 1s for real-time file monitoring
- Optimize batch processing: send_batch_size: 1, timeout: 1s
- Add PVC template for log persistence to reduce log loss risk
- Update deployment to support persistent volume for logs

freeleaps/helm-pkg/centralStorage/templates/central-storage/deployment.yaml

@@ -114,5 +114,10 @@ spec:
 {{- if .Values.logIngest.enabled }}
       volumes:
         - name: app-logs
+          {{- if .Values.logIngest.persistence.enabled }}
+          persistentVolumeClaim:
+            claimName: {{ .Release.Name }}-logs-pvc
+          {{- else }}
           emptyDir: {}
+          {{- end }}
 {{- end }}

freeleaps/helm-pkg/centralStorage/templates/central-storage/opentelemetry.yaml

@@ -46,7 +46,8 @@ spec:
       filelog:
         include:
           - {{ .Values.logIngest.logPathPattern }}
-        start_at: beginning
+        start_at: end
+        poll_interval: 1s
         include_file_path: false
         include_file_name: false
         operators:
@@ -96,8 +97,8 @@ spec:
               - set(log.body, resource.attributes["body_json"])
               - delete_key(resource.attributes, "body_json")
       batch:
-        send_batch_size: 5
-        timeout: 10s  
+        send_batch_size: 1
+        timeout: 1s  
     exporters:
       otlphttp/logs:
         endpoint: {{ .Values.logIngest.lokiEndpoint }}/otlp

freeleaps/helm-pkg/centralStorage/templates/central-storage/pvc.yaml

@@ -0,0 +1,19 @@
+{{- if and .Values.logIngest.enabled .Values.logIngest.persistence.enabled }}
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: {{ .Release.Name }}-logs-pvc
+  namespace: {{ .Release.Namespace }}
+  labels:
+    app.kubernetes.io/name: "central-storage"
+    app.kubernetes.io/instance: {{ .Release.Name }}
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: {{ .Values.logIngest.persistence.size | default "1Gi" }}
+  {{- if .Values.logIngest.persistence.storageClass }}
+  storageClassName: {{ .Values.logIngest.persistence.storageClass }}
+  {{- end }}
+{{- end }}