cluster

commit 460e476fcc6d427dfd97c60ea0a84702fc01582f
parent a739ea73f2a4dac7887386258510b9acc0d27c41
Author: MTRNord <MTRNord@users.noreply.github.com>
Date:   Sat, 28 Feb 2026 20:24:53 +0100

optimize grafana settings and opencost

Signed-off-by: MTRNord <MTRNord@users.noreply.github.com>

Diffstat:
A
apps/talos_cluster/monitoring-stack/external-costs.yaml
 | 
52
++++++++++++++++++++++++++++++++++++++++++++++++++++
M
apps/talos_cluster/monitoring-stack/kustomization.yaml
 | 
1
+
M
apps/talos_cluster/monitoring-stack/prometheus-release.yaml
 | 
4
++++

3 files changed, 57 insertions(+), 0 deletions(-)
diff --git a/apps/talos_cluster/monitoring-stack/external-costs.yaml b/apps/talos_cluster/monitoring-stack/external-costs.yaml
@@ -0,0 +1,52 @@
+apiVersion: monitoring.coreos.com/v1
+kind: PrometheusRule
+metadata:
+  name: external-costs
+  namespace: monitoring
+spec:
+  groups:
+    - name: external_costs
+      # Evaluate every 5 minutes — these are static values so interval doesn't matter much
+      interval: 5m
+      rules:
+        # Monthly costs in EUR for non-Kubernetes infrastructure
+        # Update prices here when Hetzner pricing changes (CAX11/CAX21 increase on 2026-04-01)
+
+        - record: external_cost_euros_monthly
+          expr: vector(16.1505)
+          labels:
+            service: storage_box_bx31
+            category: storage
+
+        - record: external_cost_euros_monthly
+          expr: vector(4.29)
+          labels:
+            service: server_nx11
+            category: server
+
+        - record: external_cost_euros_monthly
+          # 10x IPv4 addresses at 0.50€/each
+          expr: vector(5.00)
+          labels:
+            service: ipv4_addresses_10x
+            category: network
+
+        - record: external_cost_euros_monthly
+          expr: vector(0.0131)
+          labels:
+            service: snapshot
+            category: storage
+
+        # dns-b server (CAX11) — price increases to 5.34€ on 2026-04-01
+        - record: external_cost_euros_monthly
+          expr: vector(3.92)
+          labels:
+            service: server_cax11_dns_b
+            category: server
+
+        # dns-a server (CAX21) — price increases to 9.51€ on 2026-04-01
+        - record: external_cost_euros_monthly
+          expr: vector(7.13)
+          labels:
+            service: server_cax21_dns_a
+            category: server
diff --git a/apps/talos_cluster/monitoring-stack/kustomization.yaml b/apps/talos_cluster/monitoring-stack/kustomization.yaml
@@ -12,3 +12,4 @@ resources:
   - minio_loki_metrics.yaml
   - prometheus-adapter.yaml
   - scrape-dns.yaml
+  - external-costs.yaml
diff --git a/apps/talos_cluster/monitoring-stack/prometheus-release.yaml b/apps/talos_cluster/monitoring-stack/prometheus-release.yaml
@@ -60,6 +60,10 @@ spec:
         grafana:
             adminPassword: ENC[AES256_GCM,data:ipUgR/m8DxxdpUOVXPwo1k0pcBubMrTV2ZmXqtzvZ0jkhmfDc/YVGuyPyG558c4Afkx51t5CUycVQVMueNMMqQ==,iv:0jZuf3v4DrBJTQHHOk7QAqVXllMUzrIcOOg5KTFUINQ=,tag:P29X7rGijLZ0nkjT9cSx1w==,type:str]
             sidecar:
+                datasources:
+                    # Disable the auto-generated default Prometheus datasource so it
+                    # doesn't conflict with our custom datasources.yaml (which points to Thanos)
+                    defaultDatasourceEnabled: false
                 dashboards:
                     folderAnnotation: grafana_folder
                     provider: