add alloy

argocd/apps/alloy.yaml

@@ -0,0 +1,103 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: alloy
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "0"
+  finalizers:
+    - resources-finalizer.argocd.argoproj.io
+spec:
+  project: default
+  source:
+    repoURL: https://grafana.github.io/helm-charts
+    chart: alloy
+    targetRevision: ">=1.5.0"
+    helm:
+      values: |
+        alloy:
+          configMap:
+            content: |-
+              // Discover Kubernetes pods
+              discovery.kubernetes "pods" {
+                role = "pod"
+              }
+
+              // Relabel pods to intelligently map existing Kubernetes labels to service/component
+              discovery.relabel "pods" {
+                targets = discovery.kubernetes.pods.targets
+
+                // Create service label - try multiple sources in priority order
+                rule {
+                  source_labels = ["__meta_kubernetes_pod_label_app_kubernetes_io_name"]
+                  regex = "(.+)"
+                  replacement = "${1}"
+                  target_label = "service"
+                }
+                // 2. Second priority: app label
+                rule {
+                  source_labels = ["__meta_kubernetes_pod_label_app", "service"]
+                  regex = "^(.+);$"
+                  replacement = "${1}"
+                  target_label = "service"
+                }
+                // 3. Third priority: extract from pod name (remove hash suffix)
+                rule {
+                  source_labels = ["__meta_kubernetes_pod_name", "service"]
+                  regex = "^([a-z0-9-]+?)(?:-[a-f0-9]{5,10})?;$"
+                  replacement = "${1}"
+                  target_label = "service"
+                }
+
+                // Create component label from app.kubernetes.io/component or component label
+                rule {
+                  source_labels = ["__meta_kubernetes_pod_label_app_kubernetes_io_component"]
+                  regex = ".+"
+                  target_label = "component"
+                }
+                rule {
+                  source_labels = ["__meta_kubernetes_pod_label_component"]
+                  regex = ".+"
+                  target_label = "component"
+                }
+
+                // Drop pods that we still can't identify
+                rule {
+                  source_labels = ["service"]
+                  regex = "^$"
+                  action = "drop"
+                }
+
+                // Map standard Kubernetes metadata to Loki labels
+                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"
+                }
+              }
+
+              // Collect logs from Kubernetes pods using the Kubernetes API
+              loki.source.kubernetes "pods" {
+                targets    = discovery.relabel.pods.output
+                forward_to = [loki.write.loki.receiver]
+              }
+
+              // Write logs to Loki
+              loki.write "loki" {
+                endpoint {
+                  url = "http://loki.metrics.svc.cluster.local:3100/loki/api/v1/push"
+                }
+              }
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: metrics
+  syncPolicy:
+    syncOptions:
+      - CreateNamespace=true