[ci skip] expand Prometheus PVC to 200Gi, increase retention to 180GB for 1-year history

Storage analysis: ~10.5 GB/month ingestion rate, 1 year = ~125 GB + overhead. PVC: 30Gi → 200Gi, retention.size: 45GB → 180GB. Historical TSDB data restored from NFS (39.8 GB total including all blocks).
2026-03-06 23:16:32 +00:00 · 2026-03-06 23:16:32 +00:00 · 614d14c47d
commit 614d14c47d
parent a52a371e35
2 changed files with 2 additions and 2 deletions
--- a/stacks/platform/modules/monitoring/prometheus.tf
+++ b/stacks/platform/modules/monitoring/prometheus.tf
@ -11,7 +11,7 @@ resource "kubernetes_persistent_volume_claim" "prometheus_server_pvc" {
    storage_class_name = "iscsi-truenas"
    resources {
      requests = {
-        storage = "30Gi"
+        storage = "200Gi"
      }
    }
  }