add alloy

alloy/Chart.yaml

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+---
+apiVersion: v2
+name: alloy
+version: "1.0.0"
+
+dependencies:
+  - name: alloy
+    version: 1.1.2
+    repository: https://grafana.github.io/helm-charts

alloy/values-development.yaml

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+alloy:
+  alloy:
+    configMap:
+      content: |-
+        loki.write "default" {
+          endpoint {
+            url = "http://loki.loki.svc.cluster.local:3100/loki/api/v1/push"
+            url = "http://loki.loki.svc.cluster.local:3100/loki/api/v1/push"
+          }
+
+          tenant_id = "luna"
+        }
+
+        // discovery.kubernetes allows you to find scrape targets from Kubernetes resources.
+        // It watches cluster state and ensures targets are continually synced with what is currently running in your cluster.
+        discovery.kubernetes "pod" {
+          role = "pod"
+        }
+
+        // discovery.relabel rewrites the label set of the input targets by applying one or more relabeling rules.
+        // If no rules are defined, then the input targets are exported as-is.
+        discovery.relabel "pod_logs" {
+          targets = discovery.kubernetes.pod.targets
+
+          // Label creation - "namespace" field from "__meta_kubernetes_namespace"
+          rule {
+            source_labels = ["__meta_kubernetes_namespace"]
+            action = "replace"
+            target_label = "namespace"
+          }
+
+          // Label creation - "pod" field from "__meta_kubernetes_pod_name"
+          rule {
+            source_labels = ["__meta_kubernetes_pod_name"]
+            action = "replace"
+            target_label = "pod"
+          }
+
+          // Label creation - "container" field from "__meta_kubernetes_pod_container_name"
+          rule {
+            source_labels = ["__meta_kubernetes_pod_container_name"]
+            action = "replace"
+            target_label = "container"
+          }
+
+          // Label creation -  "app" field from "__meta_kubernetes_pod_label_app_kubernetes_io_name"
+          rule {
+            source_labels = ["__meta_kubernetes_pod_label_app_kubernetes_io_name"]
+            action = "replace"
+            target_label = "app"
+          }
+
+          // Label creation -  "job" field from "__meta_kubernetes_namespace" and "__meta_kubernetes_pod_container_name"
+          // Concatenate values __meta_kubernetes_namespace/__meta_kubernetes_pod_container_name
+          rule {
+            source_labels = ["__meta_kubernetes_namespace", "__meta_kubernetes_pod_container_name"]
+            action = "replace"
+            target_label = "job"
+            separator = "/"
+            replacement = "$1"
+          }
+
+          // Label creation - "container" field from "__meta_kubernetes_pod_uid" and "__meta_kubernetes_pod_container_name"
+          // Concatenate values __meta_kubernetes_pod_uid/__meta_kubernetes_pod_container_name.log
+          rule {
+            source_labels = ["__meta_kubernetes_pod_uid", "__meta_kubernetes_pod_container_name"]
+            action = "replace"
+            target_label = "__path__"
+            separator = "/"
+            replacement = "/var/log/pods/*$1/*.log"
+          }
+
+          // Label creation -  "container_runtime" field from "__meta_kubernetes_pod_container_id"
+          rule {
+            source_labels = ["__meta_kubernetes_pod_container_id"]
+            action = "replace"
+            target_label = "container_runtime"
+            regex = "^(\\S+):\\/\\/.+$"
+            replacement = "$1"
+          }
+        }
+
+        // loki.source.kubernetes tails logs from Kubernetes containers using the Kubernetes API.
+        loki.source.kubernetes "pod_logs" {
+          targets    = discovery.relabel.pod_logs.output
+          forward_to = [loki.process.pod_logs.receiver]
+        }
+
+        // loki.process receives log entries from other Loki components, applies one or more processing stages,
+        // and forwards the results to the list of receivers in the component's arguments.
+        loki.process "pod_logs" {
+          stage.static_labels {
+              values = {
+                cluster = "development",
+              }
+          }
+
+          forward_to = [loki.write.default.receiver]
+        }

apps/alloy.yaml

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+apiVersion: argoproj.io/v1alpha1
+kind: ApplicationSet
+metadata:
+  name: alloy
+spec:
+  goTemplate: true
+  goTemplateOptions: ["missingkey=error"]
+  generators:
+    - list:
+        elements:
+        - cluster: production
+          url: https://kubernetes.default.svc
+        - cluster: staging
+          url: https://k3s-ctrl-lb.lab.kill0.net:6443
+        - cluster: development
+          url: https://k0s-ctrl-vip.lab.kill0.net:6443
+  template:
+    metadata:
+      name: 'alloy-{{.cluster}}'
+    spec:
+      project: default
+      source:
+        path: alloy
+        repoURL: https://git.kill0.net/ryanc/argocd.git
+        targetRevision: HEAD
+        helm:
+          releaseName: alloy
+          valueFiles:
+            - values.yaml
+            - values-{{.cluster}}.yaml
+          ignoreMissingValueFiles: true
+      destination:
+        server: '{{.url}}'
+        namespace: alloy
+      syncPolicy:
+        automated:
+          prune: true
+          selfHeal: true
+        syncOptions:
+          - CreateNamespace=true