added kubernetes (k3s) setup and docs and monitoring

kubernetes/alloy-rbac/alloy-rbac.yaml

@@ -0,0 +1,36 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: alloy-external
+  namespace: monitoring
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: alloy-external
+rules:
+- apiGroups: [""]
+  resources: ["pods","pods/log","namespaces"]
+  verbs: ["get","list","watch"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: alloy-external
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: alloy-external
+subjects:
+- kind: ServiceAccount
+  name: alloy-external
+  namespace: monitoring
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: alloy-external-token
+  namespace: monitoring
+  annotations:
+    kubernetes.io/service-account.name: alloy-external
+type: kubernetes.io/service-account-token