varie

add-on/monitoring/files/04-loki-alloy-values.yaml

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+# =====================================================================
+# Loki + Grafana Alloy — log aggregation
+#
+# Loki:
+#   helm repo add grafana https://grafana.github.io/helm-charts
+#   helm repo update
+#   helm install loki grafana/loki -n monitoring -f loki-values.yaml
+#
+# Alloy (raccolta log, DaemonSet su ogni nodo RKE2):
+#   helm install alloy grafana/alloy -n monitoring -f alloy-values.yaml
+#
+# Questo file contiene ENTRAMBI i set di values, separati da "---";
+# salvali in due file distinti se preferisci due comandi helm separati.
+# =====================================================================
+
+# ---------------------------------------------------------------------
+# loki-values.yaml (modalità single-binary, adatta a partire in piccolo;
+# per HA/produzione a lungo termine valutare la modalità "simple scalable"
+# con backend object storage S3-compatibile, es. MinIO)
+# ---------------------------------------------------------------------
+deploymentMode: SingleBinary
+
+loki:
+  auth_enabled: false
+  commonConfig:
+    replication_factor: 1
+  storage:
+    type: filesystem
+
+singleBinary:
+  replicas: 1
+  persistence:
+    enabled: true
+    storageClass: longhorn   # <-- CAMBIA con la tua storageClass
+    size: 50Gi
+  resources:
+    requests:
+      cpu: 200m
+      memory: 512Mi
+    limits:
+      memory: 1Gi
+
+# Disabilita i componenti "scalable" non necessari in modalità SingleBinary
+read:
+  replicas: 0
+write:
+  replicas: 0
+backend:
+  replicas: 0
+
+gateway:
+  enabled: false
+
+test:
+  enabled: false
+
+---
+# ---------------------------------------------------------------------
+# alloy-values.yaml (DaemonSet che raccoglie log da tutti i nodi/pod
+# e li invia a Loki)
+# ---------------------------------------------------------------------
+alloy:
+  configMap:
+    content: |
+      discovery.kubernetes "pods" {
+        role = "pod"
+      }
+
+      discovery.relabel "pods" {
+        targets = discovery.kubernetes.pods.targets
+
+        rule {
+          source_labels = ["__meta_kubernetes_namespace"]
+          target_label  = "namespace"
+        }
+        rule {
+          source_labels = ["__meta_kubernetes_pod_name"]
+          target_label  = "pod"
+        }
+        rule {
+          source_labels = ["__meta_kubernetes_pod_container_name"]
+          target_label  = "container"
+        }
+      }
+
+      loki.source.kubernetes "pods" {
+        targets    = discovery.relabel.pods.output
+        forward_to = [loki.write.default.receiver]
+      }
+
+      loki.write "default" {
+        endpoint {
+          url = "http://loki.monitoring.svc.cluster.local:3100/loki/api/v1/push"
+        }
+      }
+
+controller:
+  type: daemonset
+
+resources:
+  requests:
+    cpu: 100m
+    memory: 128Mi
+  limits:
+    memory: 256Mi