feat: add Loki + Promtail logging stack

apps/loki/promtail-rbac.yaml

@@ -0,0 +1,38 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: promtail
+  namespace: loki
+  labels:
+    app.kubernetes.io/name: promtail
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: promtail
+  labels:
+    app.kubernetes.io/name: promtail
+rules:
+  - apiGroups: [""]
+    resources:
+      - nodes
+      - nodes/proxy
+      - services
+      - endpoints
+      - pods
+    verbs: ["get", "watch", "list"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: promtail
+  labels:
+    app.kubernetes.io/name: promtail
+subjects:
+  - kind: ServiceAccount
+    name: promtail
+    namespace: loki
+roleRef:
+  kind: ClusterRole
+  name: promtail
+  apiGroup: rbac.authorization.k8s.io