lower retention_period to a multiple of chunks.period (1x168h)

flux2/apps/monitoring/loki-release.yaml

@@ -16,6 +16,10 @@ spec:
         name: grafana
         namespace: flux-system
   interval: 1h
+  install:
+    timeout: 15m
+    remediation:
+      retries: 2
   values:
     # https://github.com/grafana/helm-charts/blob/main/charts/loki/values.yaml
     resources:
@@ -66,10 +70,10 @@ spec:
         reject_old_samples: true
         reject_old_samples_max_age: 168h  # 7 days
       chunk_store_config:
-        max_look_back_period: 192h  # 8 days
+        max_look_back_period: 168h  # 7 days
       table_manager:
         retention_deletes_enabled: true
-        retention_period: 192h  # 8 days
+        retention_period: 168h  # 7 days
   # Allow custom values either by configMap or by secret
   valuesFrom:
     - kind: ConfigMap