feat: migrate observability stack to flux gitops

infrastructure/addons/observability/helmrelease-promtail.yaml

@@ -0,0 +1,27 @@
+apiVersion: helm.toolkit.fluxcd.io/v2
+kind: HelmRelease
+metadata:
+  name: promtail
+  namespace: flux-system
+spec:
+  interval: 10m
+  targetNamespace: observability
+  chart:
+    spec:
+      chart: promtail
+      version: 6.16.6
+      sourceRef:
+        kind: HelmRepository
+        name: grafana
+        namespace: flux-system
+  install:
+    createNamespace: true
+    remediation:
+      retries: 3
+  upgrade:
+    remediation:
+      retries: 3
+  values:
+    config:
+      clients:
+        - url: http://loki.observability.svc.cluster.local:3100/loki/api/v1/push